Blue Phantom Manual

Blue Phantom Manual

2 • Notice [DWA000 90001 02] Blue Phantom Manual

NOTICE

This manual is an integral part of the Blue Phantom as a measuring device and should always be kept nearby.Observance of the manual is required for proper performance and correct operation of the Blue Phantom. The BluePhantom and its accessories must not be used for any other purpose than described in the accompanyingdocumentation (intended use). Violation will result in loss of warranty.

The use of the Blue Phantom and any other equipment described in this document, the generated data, as well as thevalidation of the data prior to clinical use remains the sole responsibility of the user. Scanditronix-Wellhöfer and itsdistributors disclaim all warranties, either expressed or implied, including (but not limited to) any implied warrantiesof fitness for a particular purpose and noninfringement. Additional statements such as presentations, whether oral orwritten, do not constitute warranties by Scanditronix-Wellhöfer and should not be relied upon.

Scanditronix-Wellhöfer does not accept liability for injury to personnel or damage to equipment that may resultfrom misuse of this equipment, failure to observe the hazard notices contained in this manual or failure to observelocal health and safety regulations.

No part of the accompanying documentation may be translated or reproduced without written permission ofScanditronix-Wellhöfer, unless the reproduction is carried out for the sole purpose to be used by several people inthe same department.

The user must treat the accompanying documentation like any other copyrighted material. Especially, if part of theaccompanying documentation is provided in electronic form, these files shall not be modified in any way.Scanditronix-Wellhöfer and its suppliers retain title and all ownership rights to the accompanying documentation(either in electronic or in printed form).

IBA Advanced Radiotherapywww.iba-ar.com

Wellhöfer Dosimetrie GmbHBahnhofstraße 5

D-90592 SchwarzenbruckGermany

Phone: +49 9128 607-0Fax: +49 9128 607-10

mailto: [email protected]

Scanditronix Medical ABStålgatan 14

SE-754 50 Uppsala SwedenPhone: +46 18 18 07 00

Fax: +46 18 12 75 52mailto: [email protected]

Copyright © 2001 by Wellhöfer Dosimetrie GmbH.

Blue Phantom Manual [DWA000 90001 02] Table of Contents • 3

Table of Contents

Table of Contents....................................................................................... 3

Introduction................................................................................................. 7

The Blue Phantom...................................................................................7The Blue Phantom Manual.......................................................................7

Health and Safety Information........................................................7Hardware description ....................................................................7Installation....................................................................................7Setting up for measurement ..........................................................7Maintenance.................................................................................8Specifications ...............................................................................8Appendix A ..................................................................................8

Associated documentation .......................................................................8

Health and safety information ................................................................ 9

General...................................................................................................9Safety labels ......................................................................................... 10

AquaLift ..................................................................................... 10Blue Phantom ............................................................................ 11Electrical Lift Table..................................................................... 11

Rating labels ......................................................................................... 12Responsibility........................................................................................ 13Regulatory requirements........................................................................ 13Safety Precautions ................................................................................ 14Reporting complaints............................................................................. 14

Hardware Description.............................................................................15

Introduction........................................................................................... 15Hardware................................................................................... 15Software.................................................................................... 15

Blue Phantom ....................................................................................... 17Connectors on the Blue Phantom................................................ 18The Hand Control....................................................................... 18Description of the buttons on the hand control.............................. 19Description of the LEDs on the hand control................................. 21

CU500E (Control Unit)........................................................................... 21Manual Controls......................................................................... 21

4 • Table of Contents [DWA000 90001 02] Blue Phantom Manual

Connectors................................................................................ 22AquaLift (option).................................................................................... 23

Control panel ............................................................................. 24Support screws .......................................................................... 24Mains power cable ..................................................................... 25Tubing....................................................................................... 25

Electrical Lift Table (option).................................................................... 26Introduction ............................................................................... 26

Manual Lift Table (option) ...................................................................... 27Introduction ............................................................................... 27

Water Reservoir with bi-directional pump ................................................ 28Introduction ............................................................................... 28

TMR Probe (option)............................................................................... 30Detectors (option).................................................................................. 31

Introduction ............................................................................... 31Semiconductor detectors ............................................................ 31

Field detector for electrons ......................................... 31Field detector for photons........................................... 31Field detector, stereotactic beam................................ 32Reference detector .................................................... 32

Ionisation chambers ................................................................... 32CC Chambers (Compact chambers) ........................... 32PPC Chambers (Plane parallel chambers)................... 33FC Chambers (Farmer type chambers)....................... 33NACP Chamber......................................................... 33RK Chamber ............................................................. 33

MD240 24-channel electrometer (option) ................................................ 34Introduction ............................................................................... 34Connectors................................................................................ 35Keys on the MD240 front side..................................................... 35CAN Bus board.......................................................................... 36

CA24 Chamber Array (option) ................................................................ 37Blue Phantom Cable Support...................................................... 37

Other options ........................................................................................ 38Treatment head scanning servos ................................................ 38The one-dimensional headscanner HSC 1D ................................ 38Connectors on the HSC 1D ........................................................ 38The two-dimensional headscanner HSC 2D................................. 39

Installation................................................................................................. 41

Introduction........................................................................................... 41Unpacking and Installation ..................................................................... 41

General unpacking instructions ................................................... 41AquaLift..................................................................................... 42

Tools and accessories ............................................... 42Unpacking AquaLift.................................................... 42Check Lifting function................................................. 43Check Pumping function ............................................ 44

Electrical Lift Table..................................................................... 45Unpacking Electrical Lift Table.................................... 45

Manual Lift Table ....................................................................... 46Unpacking Manual Lift Table ...................................... 46

Safety Precautions (Electrical and Manual Lift Table)................... 46Water Reservoir......................................................................... 47

Unpacking Water Reservoir........................................ 47Safety Precautions..................................................... 47Putting into operation for the first time ......................... 48

Blue Phantom............................................................................ 49

Blue Phantom Manual [DWA000 90001 02] Table of Contents • 5

Unpacking the Blue Phantom ...................................................... 49Blue Phantom Installation ........................................................... 50Device connection overview........................................................ 50Blue Phantom and TMR probe .................................................... 51Blue Phantom, CU500E and PC.................................................. 52MD240 and CAN Bus interface.................................................... 54

Installation of the PCI CAN Bus board and driver .............. 54Connecting the MD240.................................................... 54

Installation Verification (Blue Phantom, CU500E).................................... 55Servo movement ........................................................................ 55Electrometer Control................................................................... 57High Voltage .............................................................................. 57

Installation Verification (CAN Bus board, MD240) .................................... 58

Setting up for measurement .................................................................59

Introduction........................................................................................... 59Blue Phantom and AquaLift.................................................................... 60

Place Blue Phantom on AquaLift ................................................. 60Fill Blue Phantom....................................................................... 61Adjust SSD................................................................................ 62Empty Blue Phantom.................................................................. 62

Blue Phantom and Lift Table / Water Reservoir ....................................... 63Place Blue Phantom on Lift Table................................................ 63Fill Blue Phantom....................................................................... 64Adjust SSD................................................................................ 65Empty Blue Phantom.................................................................. 65

Control Cables ...................................................................................... 66Detectors .............................................................................................. 67

Field and Reference Detector explanation.................................... 67Field detector............................................................................. 67Reference detector..................................................................... 68Comments on beam direction...................................................... 68

Fine-Levelling the Blue Phantom ............................................................ 69Setup for TPR/TMR measurements........................................................ 72CA24 Chamber Array and MD240 Electrometer ...................................... 74

CA24 adapter set description ...................................................... 75Mounting the CA24 in the Blue Phantom...................................... 76Mounting the CA24 cable support................................................ 77CA24 measurement setup .......................................................... 80

Setup for in-air measurements ............................................................... 84Headscanner servos HSC 1D and HSC 2D.................................. 84

General.......................................................................... 84Possible measurement types........................................... 84Installing the headscanner and detectors ......................... 84Mounting of Build-up layers and Wedge........................... 85Measurement Setup........................................................ 85Attachments and accessory holders................................. 86

Maintenance..............................................................................................93

Introduction........................................................................................... 93Daily Check .......................................................................................... 94

AquaLift and Water Reservoir ..................................................... 94Monthly maintenance............................................................................. 94

Blue Phantom ............................................................................ 94HSC 1D and HSC 2D................................................................. 95AquaLift, Water Reservoir, Lift Table ........................................... 95

6 • Table of Contents [DWA000 90001 02] Blue Phantom Manual

Yearly Maintenance............................................................................... 96Blue Phantom............................................................................ 96

Checking positioning accuracy ................................... 96HSC 1D and HSC 2D................................................................. 96

Checking positioning accuracy ................................... 96Lift Table................................................................................... 97

Mechanical parts ....................................................... 97Electrical control unit (Electrical Lift Table only)........... 97Hand control (Electrical Lift Table only) ....................... 97

Water Reservoir......................................................................... 982-yearly maintenance............................................................................ 98

AquaLift..................................................................................... 98Replacing spare parts............................................................................ 99

CU500E and MD240 .................................................................. 99Replacing mains fuse................................................. 99

Water Reservoir........................................................................100Resetting automatic fuse...........................................100

AquaLift....................................................................................101Removing cover........................................................101Replacing fuses ........................................................102Resetting automatic fuse...........................................102Replacing the impeller...............................................103

Electrical Lift Table....................................................................104Replacing the electrical control unit............................104

Specifications.........................................................................................109

General ...............................................................................................109Standard Equipment.............................................................................109Accessories .........................................................................................110

In-Air Scanner ...........................................................................110Detectors ..................................................................................110

Technical Data.....................................................................................111CU500E ...................................................................................111Serial cable ..............................................................................113Blue Phantom...........................................................................113Accessories..............................................................................114

In-air Headscanner HSC 1D......................................114In-air Headscanner HSC 2D......................................114AquaLift ...................................................................114Electrical Lift Table ...................................................115Water Reservoir........................................................115CA24 .......................................................................116MD240.....................................................................117TMR Probe...............................................................118

Appendix A - Complaint report ..........................................................119

Reporting complaints............................................................................119

Blue Phantom Manual [DWA000 90001 02] Introduction • 7

Introduction

The Blue PhantomThe Blue Phantom is a measuring device for the measurement and analysis of theradiation field of medical linear accelerators and is part of the OmniPro-Acceptsystem. It consists of a three-dimensional servo (the Blue Phantom tank withmechanics), a Control Unit with integrated two channel electrometer (CU500E),and two single detectors (ionisation chambers). As an option, a linear chamberarray (CA24) with 24-channel electrometer (MD240) is available.

With an additional one-dimensional (HSC 1D) or two-dimensional servo (HSC2D) and a support for mounting on the gantry of a treatment machine, the systemcan be used for in-air measurements.

Detector systems that can be attached to the Blue Phantom include singlesemiconductor detectors, cylindrical and plane parallel ionis ation chambers.

The Blue Phantom ManualThe Blue Phantom Manual is intended for the physicist or engineer working withregular quality control of radiation therapy equipment. It assumes that theoperator has a working knowledge in radiation physics and dosimetry.

It is further assumed that the operator is used to working with treatmentmachines and accessories.

This manual contains a brief system overview, instructions for installation, set-up and operator maintenance. Refer to your Scanditronix-Wellhöfer distributorfor all questions regarding service and support.

The contents of this manual are as follows:

Health and Safety InformationDescribes the hazards associated with the equipment. All personnel must readthis chapter and be fully aware of its contents.

Hardware descriptionGives an overview of the components in the Blue Phantom.

InstallationProvides instructions for installing and verifying the function of the hardware ofthe Blue Phantom.

Setting up for measurementDescribes the setup of the Blue Phantom for measurements in the beam.

8 • Introduction [DWA000 90001 02] Blue Phantom Manual

MaintenanceProvides instructions for operator maintenance.

SpecificationsContains technical data for the Blue Phantom and its accessories.

Appendix AContains complaint report forms that should be used to report any complaintsabout the Blue Phantom.

Associated documentation• OmniPro-Accept System Manual: provides instructions for dosimetry

measurements using the Blue Phantom.

Further specific user's guides exist for different ionisation chambers, providinginformation on materials and dimensions of these chambers and correctionfactors for absolute dosimetry.

Blue Phantom Manual [DWA000 90001 02] Health and safety information • 9

Health and safety information

GeneralIMPORTANT NOTICE

All personnel must read this chapter and be fully aware of itscontents before commencing installation work, and beforeoperating or servicing the Blue Phantom.

If the Blue Phantom is used in a way not specified by Scanditronix-Wellhöfer, the protection provided by the equipment may bereduced.

The purpose of this chapter is to identify the hazards associated with theequipment. This information is presented by showing all safety and rating labelswhich are attached to the equipment, and providing instructions to avoid theassociated hazards. Throughout the manual, hazardous situations or operationsare identified by Warning and Caution Notices, where:

• Warning notices describe hazardous conditions where failure to observe theinstructions may result injury to persons.

• Caution notices describe hazardous conditions where failure to follow theinstructions may result in damage to equipment or stored data.

In addition to Warnings and Cautions, certain information is emphasised inImportant Notices and Notes:

• Important Notices contain instructions on the use of this manual, especiallyregarding health and safety information.

• Notes contain additional information and explanations, which are not safetyissues.

10 • Health and safety information [DWA000 90001 02] Blue Phantom Manual

Safety labels

AquaLift

Caution Consult accompanying documents

This label alerts the user to consult this manual before using theequipment. If the equipment is not handled according to the instructionsin this manual and other accompanying documents, the protectionprovided by the equipment may be reduced.

Caution Protective earth connection

The pump box cover on AquaLift must always be connected to thecarriage assembly by an earth wire. The mounting screw for the earthwire is marked with the symbol shown here.

WARNING HEAVY OBJECT

AquaLift weights up to 500 kg when filled with water. Follow theinstructions on the labels to avoid personal injury or damage toequipment.

WARNING MOVING PARTS (AQUALIFT)

Follow the instructions on the label to avoid injury to fingers.

WARNING - PINCH HAZARDAquaLift weights up to 500 kg when filled with water. Keep

your feet away from the wheels when moving AquaLift.Always lock AquaLift with support screws during use.

WARNING - HAZARD DURING TRANSPORTWith filled water reservoir, AquaLift may be difficult to stop

on inclined floors.Always empty the water reservoir before transporting

AquaLift over inclined surfaces.

WARNING - PINCH HAZARDThe lifting table moves close to the equipment shelf.

Keep hands away from the equipment shelf when operatingthe lifting table.


Blue Phantom

WARNING MOVING PARTS (BLUE PHANTOM)

Follow the instructions on the label to avoid injury to fingers.

Electrical Lift Table

WARNING PINCH HAZARD

Keep your hands away from the area below the platform whenlowering the lift table. When the platform reaches the lowestposition, your hand may be jammed between the platform and thelift table's housing.

CAUTION - keep your hands out during movement of the mechanics

KEEP YOUR HANDS AWAY

WHEN MOVING THE PLATFORM


Rating labelsRating labels are attached to the following products:

• CU500E,

• MD240 Electrometer,

• AquaLift,

• Electrical Lift Table and Water Reservoir,

• TMR Probe.

WARNING HAZARDOUS VOLTAGES

Pay attention to the voltage ratings on the rating labels. Thesedetermine the safety hazards for components connected to thesupply voltages. Do not open covers.

Normally, the labelling consists of identification and electrical rating, as shownbelow.

Figure 1. Typical rating label.


Responsibility

WARNING DATA EVALUAT ION RESPONSIBILITY

The person managing the Blue Phantom bears the full responsibilityfor critically evaluating every measurement result and/ormanipulating measurements before transferring the data to atreatment planning system.

Caution Assembly and Repairs, Accessories

Assembly, extension, modification or repair shall only be carried out byScanditronix-Wellhöfer or by persons who have sufficient knowledge andskills and are authorised by Scanditronix-Wellhöfer. For repairs, onlyspare parts provided or approved by the manufacturer must be used,otherwise operator safety, specified measuring accuracy and interferencefree operation cannot be guaranteed. Violation of this prescription willresult in loss of warranty.

Scanditronix-Wellhöfer cannot be held liable for any damages resultingfrom the use of accessories or consumables which are not provided orapproved by the manufacturer.

Regulatory requirements The Blue Phantom fulfils the requirements of the following European directiveand standards:

• Medical Devices Directive 93/42/EEC,

• EN 60601-1, Safety requirements for medical electrical systems,

• EN 60 601-1-2, Electromagnetic compatibility - requirements and tests,

• IEC 60731, Medical electrical equipment - Dosimeters with ionisationchambers as used in radiotherapy.

The quality assurance system at Wellhöfer Dosimetrie GmbH is certified since1995 according to DIN EN ISO 9001 and DIN EN 46001.


Safety Precautions1. The Blue Phantom should only be used by people who are:

• aware of and understand the limitations of the device as they relate tothe measurement of radiation output,

• knowledgeable about safety procedures observed when working withradiation sources such as Cobalt-60 machines or linear accelerators,

• aware of safety precautions required to avoid possible injury whenusing electrical / electronic equipment.

2. Before using the Blue Phantom, the operator must ensure that it is correctlyconnected and in proper working condition. The user must verify the generalfunctionality, safety and duly condition of the tank, the mechanics,electronics and the detector(s).

3. Never connect or disconnect an ionisation chamber or a chamber extensioncable to or from a dosimeter or electrometer unless the high voltage isswitched off.

4. The Blue Phantom including all accessories is a sensitive measuring systemand must be stored in a clean, dry, preferably air-conditioned area at roomtemperature. Protect it from mechanical and thermal stress and unnecessarymoisture. Mount the protection caps where provided.

Note: Devices on which moisture has developed as a result of temperaturechanges must not be used unless they have been completely dried.

5. The electrical installations of the relevant rooms must comply with IECrecommendations.

6. Use only detectors which are designed according to the electrical connectionconvention (floated input technology) required by the CU500E. Theconnection of detectors which are designed for grounded input technology,even by means of adapters, causes unsafe and hazardous conditions and isgenerally not permitted.

Reporting complaintsThe Quality Assurance system of Scanditronix-Wellhöfer includes a routine tohandle any reported complaints.

The user shall report all complaints about the system to any representative ofScanditronix-Wellhöfer or directly to:

Wellhöfer Dosimetrie GmbHBahnhofstraße 5D-90592 SchwarzenbruckGermanyPhone: +49 9128 607-0, Fax: +49 9128 607-10mailto: [email protected]

A complaint should be reported in the enclosed form Complaint Report BluePhantom. Three copies of the form are included in Appendix A of this manual.Always keep one copy of the form in this manual. If needed, make morephotocopies of the form. If there is no copy of the form, make a written reportdescribing the fault as specifically as possible.

Blue Phantom Manual [DWA000 90001 02] Hardware Description • 15

Hardware Description

Introduction

HardwareThe Blue Phantom consists of a Control Unit (CU500E), a water phantom withthree-dimensional servo and an optional chamber array (CA24) with its 24-channel electrometer (MD240).

The CU500E can also be used with a one-dimensional or two-dimensional servofor in-air measurements on a gantry.

Detector systems which can be used with the Blue Phantom include singlesemiconductor detectors, chamber array (CA24), cylindrical ionisation chambersas well as plane-parallel ionis ation chambers.

SoftwareThe OmniPro-Accept software provides functions for easy set-up and overviewof equipment and measurements.

The OmniPro-Accept software runs under the following operating systems:Windows 98, Windows NT SP3 or higher, Windows 2000 SP1. For operatinginstructions, refer to the OmniPro-Accept System Manual.

16 • Hardware Description [DWA000 90001 02] Blue Phantom Manual

Control Unit CU500E

Electrometer MD240 The Blue Phantom

TMR Probe

Compact ionisation chamber

Semiconductor field detector

Farmer 2571

Semiconductor reference detector

Cylindrical / thimble chamber

Plane parallel ionisation chamber

Chamber Array CA24 Single Detectors

Figure 2. The Blue Phantom.


Blue PhantomThe Blue Phantom comprises a three-dimensional high precision servomechanism and a Perspex water tank. On the horizontal X-rail there is a slidingshoe on which detector holders for various detectors can be mounted. The fielddetector can be positioned in all three dimensions for measuring both horizontaland vertical beams.

Every dimension is equipped with a calibrated stainless steel ruler, so that theaccurate positioning can always be verified.

The motors of the three dimensions are combined with potentiometers providingreal-time feedback of the current position.


The connector box contains connectors for the three motors/potentiometers, thedrive control cable, the hand control, and the TMR equipment.

Figure 4. The connector box.

Handcontrol

Connectorbox

Watertank


Connectors on the Blue PhantomThe following connectors are located on the connector box of the Blue Phantom:

PUMP CONTROL Remote control output used for the connection tothe AquaLift or the Water Reservoir duringTPR/TMR measurements.

TMR Input for Water Level Transducer.

REMOTE CONTROL Input for the hand control.

DRIVE CONTROL Connector for the 37-pin controller cable fromthe CU500E.

X-DRIVE Connector for the x-drive motor / potentiometer.

Z-DRIVE Connector for the z-drive motor / potentiometer.

Y-DRIVE Connector for the y-drive motor / potentiometer.

The Hand Control

Figure 5. The hand control.


Description of the buttons on the hand control

Storage Entry. Pressing this button in combination with theisocenter, the water surface or one of the limit buttons stores theactual detector position as isocenter, water surface or external limit.

Position A. By pressing SE and this button, you can store the actualdetector position for later use. Pressing this button alone moves thedetector to the position which has been previously stored.

Position B. By pressing SE and this button, you can store the actualdetector position for later use. Pressing this button alone moves thedetector to the position which has been previously stored.

Position C. By pressing SE and this button, you can store the actualdetector position for later use. Pressing this button alone moves thedetector to the position which has been previously stored.

Position D. By pressing SE and this button, you can store the actualdetector position for later use. Pressing this button alone moves thedetector to the position which has been previously stored.

Isocenter. By pressing SE and this button, you can store the actualdetector position as isocenter. Pressing this button alone moves thedetector to the actual isocenter position.

Water Surface. By pressing SE and this button, you can store theactual detector position as water surface. Pressing this button alonemoves the detector to the actual water surface position.

Upper X Limit. By pressing SE and this button, you can store theactual detector position as upper limit in X direction. Pressing thisbutton alone moves the detector to the actual upper X limit.

Upper Y Limit. By pressing SE and this button, you can store theactual detector position as upper limit in Y direction. Pressing thisbutton alone moves the detector to the actual upper Y limit.

Upper Z Limit. By pressing SE and this button, you can store theactual detector position as upper limit in Z direction. Pressing thisbutton alone moves the detector to the actual upper Z limit.

Lower X Limit. By pressing SE and this button, you can store theactual detector position as lower limit in X direction. Pressing thisbutton alone moves the detector to the actual lower X limit.

Lower Y Limit. By pressing SE and this button, you can store theactual detector position as lower limit in Y direction. Pressing thisbutton alone moves the detector to the actual lower Y limit.

Lower Z Limit. By pressing SE and this button, you can store theactual detector position as lower limit in Z direction. Pressing thisbutton alone moves the detector to the actual lower Z limit.


Detector Movement in +X direction. Pressing this key andholding it causes a slow detector movement in +X direction.

Detector Movement in +Y direction. Pressing this key andholding it causes a slow detector movement in +Y direction.

Detector Movement in +Z direction. Pressing this key andholding it causes a slow detector movement in +Z direction.

Detector Movement in -X direction. Pressing this key andholding it causes a slow detector movement in -X direction.

Detector Movement in -Y direction. Pressing this key andholding it causes a slow detector movement in -Y direction.

Detector Movement in -Z direction. Pressing this key andholding it causes a slow detector movement in -Z direction.

Fast Detector Movement. Pressing this key in combination withone of the six slow movement keys above causes a fast detectormovement in the respective direction.

Switch to TMR mode. Pressing these two keysswitches the Blue Phantom into TMR mode (hand controlbeeping). Works only if both transducer and cable towater reservoir are connected.Note: It is not required to do this before starting a TMRmeasurement. The software switches the Blue Phantom inTMR mode automatically.

Switch to normal mode. Pressing these two keysswitches the Blue Phantom from TMR mode back tonormal mode (hand control stops beeping).Note: It is not required to do this after a TMRmeasurement. The software switches the Blue Phantomback to normal mode automatically.


Description of the LEDs on the hand control

off the external limit cannot be defined at the actual detector position,since the detector is in the other half of the phantom (beyond thecenter point).

on you may define an external limit at the actual detector position.The detector didn't yet reach the previously defined external limit.

flashing you may define an external limit at the actual detector position.The detector already exceeded the previously defined externallimit.

CU500E (Control Unit)

Manual ControlsAll operator control is performed from the computer keyboard. The CU500Econtains the following indicators and controls:

POWER A green lamp on the front side which lights to indicatethe ON state of the CU500E.

ON / OFF Mains power switch, located on the rear side.

Figure 6. Control Unit CU500E - front side.

Figure 7. Control Unit CU500E - rear side.

Trigger cable input

Drive control cable input

Mainspowerinlet

ON / OFF switch


WARNING HIGH VOLTAGE

The CU500E contains high voltages of up to 240 V AC and 480 V DC.Do not open covers.

ConnectorsThe CU500E rear side contains the following connectors:

Mains power Input connector for mains power, 100 - 120 V or 220 -240 V according to the marking on the unit. The fuseholder is integrated with the mains power connector, seethe Maintenance chapter for replacement instructions.

Drive control Connector for communication with the Blue Phantom(drive control cable).

Trigger Can be used as input for synchronisation pulses duringscanned beam measurements.

The CU500E front side contains the following connectors:

Field (TNC) Input connector for the field detector.

Field (BNC) Input connector for the field detector, if the signal issupplied as a voltage (e.g. if an external electrometer isused).

Reference (TNC) Input connector for the reference detector.

Reference (BNC) Input connector for the reference detector, if the signalis supplied as a voltage (e.g. if an external electrometeris used).

Control ComputerRS232C - A

Input connector for a serial cable which connects theCU500E to a COM port of the PC. To be used forstandard operation.

RS232C - B Input connector for a serial cable which connects theCU500E to a COM port of the PC. To be used only fortroubleshooting.


AquaLift (option)AquaLift combines a water reservoir and a pump system with a lifting carriagefor the Blue Phantom. Water pump and lifting table are controlled by pushbuttons on the control panel. The pump can also be controlled automatically bythe OmniPro-Accept software during TPR/TMR measurements.

AquaLift contains a connector for remote control signals from the CU500Eduring TPR/TMR measurements, see the figure below.

Figure 8. AquaLift water reservoir and lifting carriage.


Control panelThe AquaLift control panel contains the following controls and indicators:

POWER This switch connects mains power to AquaLift when setto the 1 position. The switch lights to indicate thePOWER ON state.

Function selector A latching switch that selects the LIFT or PUMPfunction. The Function selector must be in the PUMPposition to enable remote control.

LIFT A non-latching switch that controls the liftingmovement. The lifting table moves upwards when theswitch is held in the UP position. The lifting tablemoves downwards when the switch is held in theDOWN position. The movement stops as soon as theswitch is released.

PUMP A latching switch that controls the pumping direction.Water is pumped into the water phantom when theswitch is set in the FILL PHANTOM position. Water ispumped out of the water phantom when the switch is setin the EMPTY PHANTOM position. When the switch isin mid-position the pump is OFF.

Flow control handle This handle controls a valve that determines the flowrate during pumping. The Flow control handle allowsstepless adjustment between the Min flow and Max flowpositions. Flow control is normally used only to limitflow during TPR/TMR measurements.

REMOTE CONTROL This lamp lights to indicate that the pump is remotecontrolled by the CU500E. This function requires that aTMR remote control cable is connected to the REMOTECONTROL connector on AquaLift.

Note: The Function selector must be in the PUMPposition to enable remote control.

Support screws


AquaLift weights up to 500 kg when filled with water.

Keep your feet away from the wheels when moving AquaLift. Alwayslock support screws during use.

AquaLift has four support screws that should be used to prevent unwantedmovements when loading a Water Phantom on AquaLift, filling with water, andduring measurement. To lock a support screw, turn the handle clock-wise untilthe support screw presses against the floor.


Mains power cableThe mains power cable is permanently connected to the pump box and shouldalways be wound around the cable holder when AquaLift is not used.

Figure 9. AquaLift front view with mains power cable.

TubingAquaLift includes all the necessary tubing to fill a Water Phantom. A filling tubeattached to the pump hose connects easily to the edge of the Water Phantom. Thefilling tube can be put into the tube support during measurements (exceptTPR/TMR). Whenever the filling tube is not inserted into the tube support, thedelivered plug should be fit to the tube support opening to prevent water fromsplashing out of the reservoir.

Figure 10. Filling tube.


Electrical Lift Table (option)

IntroductionAs an alternative to the AquaLift, the Electrical Lift Table is a small and flexibledevice for positioning and fine adjustment of water phantoms under linearaccelerators or other radiation sources.

• The electrical control allows comfortable and smooth lifting / lowering witha vertical range of 740 - 1240 mm, the table is therefore suitable formeasurements in both standard SSD and TPR/TMR conditions.

• The telescope construction is self-locking, a given position rests absolutelystable.

• By using the levelling frame mounted on top of the lift table, the waterphantom can be fine adjusted in vertical and horizontal direction. In thehorizontal plane, it can be shifted in both directions and turned.

• For carriage of the water phantom the lift table is provided with two fixedand two steerable rollers with parking brakes.

Figure 11. Electrical Lift Table.

Handwheel forvertical levelling

Lateraladjustmenthandle

Parking brakes


Figure 12. Hand control for the Electrical Lift Table.

Manual Lift Table (option)

IntroductionAs an alternative to the AquaLift, the Manual Lift Table is a small and flexibledevice for positioning and fine adjustment of water phantoms under linearaccelerators or other radiation sources.

• By using the levelling frame mounted on top of the lift table, the waterphantom can be fine adjusted in vertical direction.

• For carriage of the water phantom the lift table is provided with two fixedand two steerable rollers with parking brakes.

• The crank handle uses a mitre-gear with a reduction ratio of 1:2 and allowstherefore the lifting of water phantoms with little effort.

• The construction of the drive includes four synchronised acme threadspindles connected with a precision driving belt. The spindles are self-locking, a given position rests absolutely stable.

Figure 13. Manual Lift Table.

Movement in +Z direction.Pressing this key and holding itcauses lift table movement in+Z direction (upwards).

Movement in -Z direction.Pressing this key and holding itcauses lift table movement in -Z direction (downwards).

If the keys are released, thevertical movement will stopimmediately.

Handle forverticallevelling

Handwheel forverticalmovement ofthe lift table


Water Reservoir with bi-directional pump

IntroductionIn combination with the electrical or manual lift table, the Water Reservoir isused for filling and draining the water phantom, storage of the water while thephantom is not in use, and for TPR/TMR measurements. The carriage of thewater reservoir is provided with two fixed and two steerable rollers with parkingbrakes.

Figure 14. Water Reservoir.

Figure 15. The hand control for the Water Reservoir.

Filling tube

Support openingfor filling tube

Hand control

Parking brake

FILL

STOP

DRAIN


Fill button. Press this key to fill the Blue Phantom.

Stop button. Press this key to stop the pumping operation.Pressing this key and holding it for more than 2 seconds locksthe pump.

Drain button. Press this key to drain the Blue Phantom.

Notes:

1. The water reservoir is provided with a bi-directional DC water pump andan electromagnetic valve to prevent water leakage in case of hose failureand to prevent water from flowing back into the reservoir duringmeasurements, while the filling tube is connected to the phantom.

2. If the pump has been in operation for more than 15 minutes withoutinterruption, it will automatically be switched off, and the red LED abovethe Fill or Drain button will flash. To release the water reservoir andcontinue the operation, press the Stop button.

3. If the Fill button is pressed the first time after the water reservoir has beenconnected to the mains outlet, there is an incident waiting time of approx.15 seconds. During this time, the electromagnetic valve is opened in orderto remove the air between the pump and the electromagnetic valve. The redLED above the Fill button flashes during this time. This procedure can beinterrupted by either interrupting the mains connection or by pressing allbuttons simultaneously (soft reset).

4. Computer controlled filling or draining can be interrupted at any time bypressing one of the buttons on the hand control.

5. The pump can be locked by pressing the Stop button for more than 2seconds. In this condition, neither manual nor computer controlledoperation is possible. The LED above the Stop button flashes. You canrelease the water reservoir by pressing the Stop button once or byinterrupting the mains connection.

6. The electronic control incorporates a verification of the temperature.Overtemperature is indicated by a fast flashing LED (5 Hz) above the Stopbutton. In case of overtemperature, the water reservoir is locked until thetemperature decreased sufficiently. This locking condition cannot bereleased by the user, even not by interrupting the mains connection.


TMR Probe (option)Tissue Phantom Ratio (TPR) and Tissue Maximum Ratio (TMR) areconveniently measured with a water level transducer mounted on the BluePhantom. The TPR/TMR measurement is performed as water is pumped into orout of the Blue Phantom, while the field detector rests at a stable position.

The TMR transducer (TMR probe) contains a tubular waveguide, protected by astainless steel pressure tube. A positioning magnet (float) travels along the rod.The positioning magnet defines the position to be measured on the waveguide.An internally generated pulse in conjunction with the magnetic field produces atorsional wave in the waveguide (magnetostriction), which propagates anultrasonic velocity. The wave component reaching the far end of the waveguideis absorbed by a damping technique. The component reaching the connectionend passes through a coil, generating an electric signal. The wave propagationtime is used to derive the position of the float i.e. the water surface. This takesplace with extremely high precision and repeatability.

The TMR probe uses the TMR connector on the Blue Phantom to transmitposition signals. Detector signals are connected to the Field and Referenceinputs on the CU500E.

Furthermore, the TMR probe receives the necessary power from the electronicsof the water reservoir. The cable to the water reservoir must therefore beconnected to the PUMP CONTROL connector on the Blue Phantom.

For TPR/TMR measurements, either the AquaLift or the Water Reservoir withbidirectional pump must be used. The water pump is controlled automatically bythe OmniPro-Accept software via the CU500E.

Figure 16. The TMR Probe.

TMR probe

Float (water level detector)


Detectors (option)

IntroductionScanditronix-Wellhöfer provides a wide range of single detectors(semiconductor detectors and ionisation chambers) and a chamber array for usein the Blue Phantom.

Figure 17. The detector relationship.

Semiconductor detectorsScanditronix-Wellhöfer provides four types of semiconductor detectors for fieldanalysis:

• Field detector for electrons (blue),

• Field detector for photons (yellow),

• Field detector for stereotactic beams (green),

• Reference detector.

The field detectors allow field measurements with high spatial resolution due tothe small size of the active semiconductor chip. All field detectors are based onthe Hi-pSi semiconductor chip. An important benefit of the Hi-pSi chip is thedose rate independence. The field detectors are delivered with individual testcertificates.

Field detector for electronsThis detector should be used for measurements in electron fields, where itproduces a signal proportional to the absorbed dose in water, without any needfor corrections.

Field detector for photonsThis detector is specially designed for measurements in photon fields. Thedetector has a built-in compensation for the energy dependence of Si.

When irradiated in the axial direction the photon field detector gives a uniformresolution. The detector type is recommended for use in photon fields larger than10 x 10 cm.

Semiconductors(Field detectors forelectrons, photons)

Cylindrical ionisationchambers

(e.g. CC13, RK, Farmer)

Plane-parallel ionisationchambers

(e.g. PPC40, NACP)

Ionisation chambers

Single detectors Detector array(CA24)

Detectors


Field detector, stereotactic beamThis detector is specially designed for measurements in photon fields with fieldsizes from 10 x 10 cm down to 2 mm diameter. The spatial resolution of thisdetector is only 0.6 mm, it is therefore the choice in small fields or sharp gradientregions. The detector can also be used in electron fields if the integration time isincreased.

Reference detectorThis detector is specially designed to achieve a stable reference signal in bothphoton and electron beams. By detecting fluctuations in the beam, the inaccuracyof the relative measurement due to varying accelerator output is reduced.

Ionisation chambersIonisation chambers are recommended for absolute dosimetry and used inrelative dosimetry for the measurement of profiles and depthdoses in photon andelectron beams. For continuous scanning they are used in pairs (one fieldchamber, one reference chamber). More specific informations about thechambers are provided in dedicated user's guides.

The chambers are connected via chamber extension cables to the CU500E. TheCU500E provides a high voltage supply, which is controlled from the OmniPro-Accept software.

Scanditronix-Wellhöfer supplies the following types of ionisation chambers:

CC Chambers (Compact chambers)

Type inner diameter active volume

CC01 2.0 mm 0.01 cm3

CC04 4.0 mm 0.04 cm3

CC08 6.0 mm 0.08 cm3

CC13 6.0 mm 0.13 cm3

CC25 6.0 mm 0.25 cm3

These compact cylindrical (thimble) ionisation chambers are intended for thefollowing applications:

• CC01: Measurements of small fields and of ranges with high dose gradients(e.g. stereotactic fields).

• CC08: Customised applications during manufacturing, installation and fieldservice of linear accelerators.

• CC04, CC13: Standard chambers for clinical use in water phantoms, solidphantoms and in air (with build-up cap).

• CC25: Low dose measurements in water phantoms and in-air measurementsfor quality assurance.

The chambers are waterproof without any additional accessory. Each CCchamber is calibrated and delivered with an individual calibration certificate.


PPC Chambers (Plane parallel chambers)

Type diameter (inner electrode) active volume

PPC05 9.9 mm 0.046 cm3

PPC40 16.0 mm 0.40 cm3

These plane parallel ionisation chambers are intended for the followingapplications:

• PPC05: The conventional ionisation chamber for electron dosimetry, used inwater phantoms, solid phantoms and in air (with build-up cap).

• PPC40: Fast measurements and easy data evaluation for dose determinationin electron and proton beams.

The chambers are waterproof without any additional accessory. Each PPCchamber is calibrated and delivered with an individual calibration certificate.

FC Chambers (Farmer type chambers)

Type inner diameter active volume wall material

FC23-C 6.2 mm 0.23 cm3 Shonka C552

FC65-G 6.2 mm 0.65 cm3 Graphite

FC65-P 6.2 mm 0.65 cm3 POM (Delrin)

These Farmer type cylindrical ionisation chambers are intended for absolutedosimetry in water phantoms, solid phantoms and in air (with build-up cap). Dueto the robust wall material, the FC65-P is especially useful for all routineapplications.

The chambers are waterproof without any additional accessory. Each FCchamber is calibrated and delivered with an individual calibration certificate.

NACP ChamberThis is a sealed plane-parallel ionisation chamber built to the specifications ofthe Nordic Association of Clinical Physics (NACP). It is especially suited formeasurements in low-energy electron beams.

The NACP chamber features a thin front window, which allows shallowmeasurements, a small cavity minimising field perturbation, low polarity effectand high stability of detector response. It is water-proof without any additionalaccessory. Each NACP chamber is delivered with an individual test certificate.

RK ChamberThis unsealed cylindrical (thimble) ionisation chamber is intended for waterphantom or in-air measurements using a Perspex build-up cap. It is suitable forelectron or photon beams of energies above 1 MeV.

The RK chamber has a small air cavity to enable measurements in steep gradientregions, for example the penumbra region. It is used for relative dosemeasurements in water. Each RK chamber is delivered with an individual testcertificate.


MD240 24-channel electrometer (option)

IntroductionThe MD240 is specifically designed to receive the signals of the 23 ionisationchambers on the CA24 chamber array, plus the signal of an optional singlereference detector which usually is a CC13 chamber. The MD240 cannot be usedwith other field detectors than the CA24.

The front panel of the MD240 contains a green LC display, which lights toindicate the ON state of the MD240.

The ON / OFF switch is located on the rear panel of the MD240.

Figure 18. The MD240 24-channel electrometer - front side.

Figure 19. The MD240 24-channel electrometer - rear side.

ON / OFFswitch

Mainspowerinlet

Connector forCA24 signalcable

Connector forcalibration factorplug

Connector forreferencechamber cable

Connectorfor CAN buscable


ConnectorsThe MD240 rear side contains the following connectors:

Power Supply Input connector for mains power. The MD240 has awide range power supply accepting 85 - 265 V. The fuseholder is integrated with the mains power connector, seethe Maintenance chapter for replacement instructions.

CAN Bus Connector for the communication with the PC. Any ofthe two upper connectors can be used. A so-called CANBus cable connects the MD240 and a CAN Businterface board in the PC.

SINGLE DETECTOR Input for reference detector cable.

ARRAY DETECTOR Input for the CA24 signal cable.

Detector ID Input for the small plug containing the calibrationfactors, fixed at the CA24 signal cable. Use the upperinput connector only.

other connectors All other input connectors are currently not used.

The MD240 front side contains the following connectors:

Com A Input for a serial cable connection between the MD240and the PC. Used only for firmware download andtroubleshooting.

Keys on the MD240 front sideYou can use the keys at the MD240's LC display to:

• set the bias voltage,

• define the baud rate for COM A (serial cable for firmware download),

• switch the speaker on or off,

• check the actual firmware version,

• adjust the contrast of the LC display.

After switching on the MD240, the startup message as shown below is displayed:

Figure 20. LC display and keys of the MD240.

Wellhöfer Dosimetrie

MD240 Electrometer

Enter


The leftmost key is a hidden key used to reset the MD240. The function of theother keys below the display depends on the actual condition, and is indicated inthe LC display directly above each key. The Enter key at the right side of thedisplay is used to confirm settings.

CAN Bus boardThe communication between the MD240 and the PC is realised by the CAN Businterface board which is inserted into the PC.

Figure 21. The PCI CAN Bus interface board.

Basically the CAN Bus board is a standard PCI bus plug&play interface board.Alternatively, the CAN Bus interface can also be realised via an USB adapter ora PCMCIA interface card (the latter for laptops / notebooks only).

Figure 22. The USB CAN Bus adapter.

The MD240 is connected to the CAN Bus interface board resp. USB adapter viaa customised CAN Bus cable of 20 m length.


CA24 Chamber Array (option)The CA24 chamber array consists of 23 vented ionisation chambers arranged ina linear order with 2 cm spacing. The CA24 is designed for profile and depthdose measurements in water, and provides fast and reliable measurements indynamic fields. It is mounted on the horizontal X-rail of the Blue Phantom.

The CA24 can only be used in combination with the MD240 electrometer. Inaddition, a reference chamber (usually a CC13) can be connected to the MD240in order to compensate for long term variations in the accelerator output.

Furthermore, the CU500E is needed to control movement of the mechanics in theBlue Phantom.

Figure 23. The CA24 chamber array.

Blue Phantom Cable SupportA special cable support has been designed to lead the CA24 signal cable out ofthe Blue Phantom in a way that it cannot get stuck or bended. This cable supportmust be mounted on the Blue Phantom when the CA24 option has beenpurchased. It is usually left mounted even when the CA24 is not in use.

Figure 24. CA24 signal cable support.


Other options

Treatment head scanning servosThe HSC 1D and the HSC 2D scanning servos are designed for measurements inair during routine radiation field checks.

The servo is attached to the treatment head by inserting it into the accessoryholder of the treatment head. The servo is held in a fixed position relative to thetreatment head, thereby allowing measurements in any gantry angle.

CC13 ionisation chambers (one field chamber, one reference chamber) are usedas detectors. Acrylic build-up blocks of different thicknesses and an acrylicwedge are available in addition.

The one-dimensional headscanner HSC 1D

Figure 25. HSC 1D head scanning servo.

Connectors on the HSC 1DThe following connectors are located on the HSC 1D:

Motor Input connector for the drive motor.

Poti Input connector for the potentiometer.

Figure 26. HSC 1D connector panel.

Potentiometer

Connector panel

X railslidingshoe

Motor

Input connector for thedrive control cable tothe CU500E

Input connector forthe Hand Control


The two-dimensional headscanner HSC 2D

Figure 27. HSC 2D head scanning servo.

The following connectors are located on the HSC 2D:

MX Input connector for the X drive motor.

MY Input connector for the Y drive motor.

PX Input connector for the X drive potentiometer.

PY Input connector for the Y drive potentiometer.

Figure 28. HSC 2D connector panel.

The GUN and TARGET stickers indicate the orientation of the servo against thegantry coordinate system.

X rail slidingshoe withdetectorholder

Connectorpanel

Input connector forthe Hand Control

Input connector for thedrive control cable tothe CU500E


Blue Phantom Manual [DWA000 90001 02] Installation • 41

Installation

IntroductionThis chapter describes the unpacking and installation of the hardware of the BluePhantom, including check procedures and guidelines for correct placing of theequipment. Computer requirements and software installation instructions can befound in the OmniPro-Accept System Manual.

IMPORTANT NOTICE

Personnel who are to install the Blue Phantom must read thischapter and be fully aware of its contents.

Unpacking and Installation

General unpacking instructionsBefore unpacking, check for damage on the outside of the crate. Note any sign ofdamage. Open the crate and carefully unpack all parts of the system. Check eachitem against the packing list which is attached to the installation report. If anyparts are missing, confirm this on the installation report. If any parts aredamaged, report the damage immediately to the shipping agent and contact yourScanditronix-Wellhöfer distributor.

The undersigned installation report should be mailed or faxed to the factory. Thecompletion date of installation represents the beginning of the warranty period.

The original packaging (shipping crate, packing materials, transport protectionsetc.) must be kept for possible shipment.

42 • Installation [DWA000 90001 02] Blue Phantom Manual

AquaLift

Tools and accessoriesYou need the following tools and accessories to unpack and install the AquaLift:

• Pallet loader,

• Phillips screwdriver,

• Scissors.

Unpacking AquaLiftThe AquaLift crate consists of a wooden bottom plate with a plywood hood.Unpacking requires two persons.

Unpack AquaLift as follows:

1. Remove the screws at the bottom of the hood.

2. Lift off the cover (use the leather straps).

3. Cut the straps holding AquaLift.

4. Lift the AquaLift by lowering the front support screws until the wooden barsbelow AquaLift are free.

5. Place two 25 mm pieces of wood under the rear support screws (below thehandle).

6. Lift the rear end of AquaLift by lowering the rear support screws.

7. Remove the three wooden bars.

8. Loosen all support screws until AquaLift rests on the bottom plate with itswheels.

9. With a wooden bar between the pallet loader and AquaLift, lift the rear endof AquaLift (see illustration to the left).

10. Pull AquaLift halfway out from the bottom plate; the front wheels shouldstill rest on the bottom plate.

11. Carefully lift the AquaLift from the pallet loader and place it with the rearwheels on the floor.

12. Lift the front end of AquaLift by hand and carefully place it on the floor.


Check Lifting function


The lifting table moves close to the equipment shelf. Keep handsaway from the equipment tray when operating the lifting table.

Note: The lifting unit should not be operated continuously for more than 2minutes. An automatic thermal fuse will cut off power to the lifting unitif it is overheated. When the lifting unit has cooled off, the thermal fusewill reset automatically.

Begin by connecting mains power to AquaLift:

1. Check that the Function selector is set to LIFT.

2. Check that the PUMP switch is set to mid-position (OFF).

3. Connect the mains power cable to a mains power outlet with protectiveearth.

4. Press the POWER switch and verify that it lights.

Verify the lifting function as follows:

1. Push the LIFT switch to the DOWN position.

2. Verify that the lifting table moves down to its lowest position, then releasethe LIFT switch.

3. Push the LIFT switch to the UP position.

4. Verify that the lifting table moves up to its highest position, then release theLIFT switch. Check that the switch returns to mid-position.


Check Pumping function

Caution Use distilled or de-ionised water

When filling the water reservoir, always use distilled or de-ionised waterto prevent the growth of algae.

Caution Flooding hazard

If water is filled directly into the reservoir, do not fill in significantly morewater than the Blue Phantom can hold (190 L).


AquaLift weights up to 500 kg when filled with water. Keep your feetaway from the wheels when moving AquaLift. Always lock AquaLiftwith the support screws during use.

WARNING HIGH CENTRE OF GRAVITY

With filled Blue Phantom raised to the highest position, the centre ofgravity will be high. AquaLift may tip over if it is moved and collideswith other objects.

Do not move AquaLift with filled Blue Phantom in the highestposition.

Verify the pumping function as follows:

1. Remove the fill tube from the tube support and place it in a container withdistilled or de-ionised water, or in a filled water phantom.

2. Move the Function selector to the PUMP position.

3. Press the PUMP switch to the EMPTY PHANTOM position.

4. When the pump has started the water should normally reach the waterreservoir within about 1 minute. Verify this and then set the PUMP switch tomid-position (OFF).

Caution Dry pump

Do not run the pump dry for more than 10 minutes.

5. Press the PUMP switch to the FILL PHANTOM position.

6. Verify that water is pumped out of the water reservoir, then set the PUMPswitch to OFF.

Note: It is convenient to leave the fill tube in the water phantom duringstorage. Remember to put the rubber plug in the tube support.



Unpacking Electrical Lift TableThe Electrical Lift Table is delivered completely assembled. Carefully unpack itfrom the transportation case. Retain the original packing material in casereshipment becomes necessary. Observe the general unpacking instructionsstated at the beginning of this chapter.

After unpacking the lift table, check the following:

• Check that the mains connection is in accordance to information indicatedon the lift table's rating label.

• Verify that the lift table is working correctly by driving it once over the fullvertical range.

• Check the floor condition at those locations where you want to drive orplace the lift table. Check that the maximum load capacity of the floor issufficient (see Specifications).

Notes:

1. To disconnect the lift table from the mains electric supply, it is necessary tounplug the power cord from the mains outlet.

2. The telescope drive is not equipped with mechanical end switches. If thehighest or lowest position is reached, the drive is stopped by the electricalcontrol unit using an overcurrent circuit breaker.

3. In the same way, the motor is also stopped in case of overheating. Waituntil the temperature has decreased significantly before continuing tooperate the lift table.



Figure 29. Electrical Lift Table: possible pinch hazard.


Manual Lift Table

Unpacking Manual Lift TableWith the exception of the crank handle, the Manual Lift Table is deliveredcompletely assembled. Carefully unpack it from the transportation case. Retainthe original packing material in case reshipment becomes necessary. Observe thegeneral unpacking instructions stated at the beginning of this chapter.

After unpacking the lift table, do the following:

• Mount the crank handle on the outgoing shaft of the mitre-gear. Thehexagonal nut type M8 delivered with the table is used to fix the crankhandle.

• Verify that the lift table is working correctly by moving it once over the fullvertical range.

• Check the floor condition at those locations where you want to drive orplace the lift table. Check that the maximum load capacity of the floor issufficient (see Specifications).

Safety Precautions (Electrical and Manual LiftTable)• The lift table must not be charged with anything else than the Blue Phantom

or RFA-300 water phantoms. Especially, do not carry persons with the lifttable.

• The maximum load capacity of the lift table must not be exceeded.

• The maximum permissible load capacity of the floor must be sufficient.

• Never charge the lift table unbalanced or significantly beyond the platform.

• Lift the platform only if the table is in a horizontal position.

• The lift table should be placed in a stable position and in such a manner, thatcollisions of the platform with other items in the near environment areavoided, and that it is possible during normal use to safely perform all tasksconcerning the lift table or the water phantom.

• During the carriage of water phantoms the lift table must be kept on itslowest position. Furthermore, it is strongly recommended to empty thephantom before carrying it with the lift table. Otherwise the lift table may tipover if it is moved and collides with other objects.


Water Reservoir

Unpacking Water ReservoirThe Water Reservoir is delivered completely assembled. Carefully unpack itfrom the transportation case. Retain the original packing material in casereshipment becomes necessary. Observe the general unpacking instructionsstated at the beginning of this chapter.

After unpacking the water reservoir, check the following:

• Check that the mains connection is in accordance to information indicatedon the water reservoir's rating label.

• Check the floor condition at those locations where you want to drive orplace the water reservoir. Check that the maximum load capacity of the flooris sufficient (see Specifications).

Safety Precautions

• The water reservoir must not be charged with heavy items.

• Do not carry persons with the water reservoir.

• Do not park the water reservoir on an inclined position of the floor.

• The maximum permissible load capacity of the floor must be sufficient.

• Never fill the water reservoir to a level where the ventilation hole is filledwith water.


The water reservoir weights up to 300 kg when filled with water.Keep your feet away from the wheels when moving the waterreservoir. Always lock the water reservoir with the parking brakesduring use.

Caution Dry pump



Putting into operation for the first timeThe water pump used in this water reservoir is not a suction pump. To achieve aproper function when filling the water phantom, the filling tube should initiallybe placed below the water level in the reservoir. For the initial use pleaseproceed as follows:

1. Remove the upper wooden plate from the water reservoir carriage.

2. Open the round lid of the water tank.

3. Fill the reservoir to approximately 4 cm below the lid.

Caution Use destilled or de-ionised water


Caution Flooding hazard

If water is filled directly into the reservoir, do not fill in significantly morewater than the Blue Phantom can hold (190 L).

4. Place the hose (without the metal filling tube connected) into a bucket on thefloor.

5. Press the Fill button and wait until water is pumped into the bucket.

Note: If the Fill button is pressed the first time after the water reservoir hasbeen connected to the mains outlet, there is an incident waiting time ofapprox. 15 seconds. During this time, the electromagnetic valve is openedin order to remove the air between the pump and the electromagneticvalve.

6. Press the Stop button.

7. Attach the metal filling tube to the hose.


Blue Phantom

Unpacking the Blue PhantomThe Blue Phantom is delivered in two boxes:

• One outer plywood box with the Blue Phantom (tank and mechanics).

• One inner plywood box, placed inside the Blue Phantom with the CU500Eand accessories.

Unpacking requires two persons.

Figure 30. The Blue Phantom delivery boxes.

Unpack the Blue phantom as follows:

1. Unlock and remove the top cover of the outer plywood box.

2. Remove the upper packing material.

3. Lift the inner box with the CU500E and accessories out of the BluePhantom.

4. Lift the CU500E out of the inner box.

5. Take out the package with cables, manuals and accessories from the innerbox.

6. Compare with the packing list and check that all items are delivered.

7. Lift the Blue Phantom out of the outer box and place it on the AquaLift orLift Table.

Caution Do not lift the phantom at the rails

Never lift the Blue Phantom at the rails. Take hold of the phantom at thePerspex bars on the side walls of the tank.

Upperpackingmaterial

Inner box

Outer box


Blue Phantom Installation

WARNING LINE VOLTAGE SETTING

Before connecting a unit to mains power, check that the line voltagesettings of the unit is in accordance with the local mains voltage.

WARNING PROTECTIVE EARTH CONNECTION

All equipment must be connected to mains power outlets withprotective earth.

Device connection overviewHere is a diagram showing the general connection between the different devices.

Figure 31. Device connection overview.

The CU500E is placed in the control room near the PC. It is connected to the PCwith the 1.5 m serial connection cable. On the other hand, it is connected to theBlue Phantom with the 18 m drive control cable and the two 18 m chamberextension cables. These cables must be put through the cable tunnel between thecontrol room and the treatment room before connecting them.

If the CA24 was purchased, the CAN Bus cable between the PC and the MD240electrometer must be put through the cable tunnel as well. The MD240 is placedin the treatment room, but as far away from the radiation field as the length ofthe CA24 signal cable allows.


Blue Phantom and TMR probeIf the TPR/TMR option has been purchased with the Blue Phantom initially, theTMR probe is normally already mounted in the Blue Phantom. However, if thisis not the case or the TPR/TMR option is purchased later, proceed as follows.

1. Ensure that the TMR probe together with the float is inserted into the acrylicsupport tube. The label on the float must be oriented upwards.

2. Mount the support tube with the TMR probe in the Blue Phantom.

3. Tighten the two fixation screws at the top of the TMR probe (see figurebelow).

4. Connect the cable from the TMR probe to the TMR input on the connectorbox of the Blue Phantom.

The TMR probe usually remains in the Blue Phantom. For TPR/TMRmeasurements, the remote control cable coming from the AquaLift resp. WaterReservoir must be connected to the PUMP CONTROL input on the connector boxof the Blue Phantom (see Setting up for measurement).

Figure 32. Mounting the TMR probe.

support tube

float


Blue Phantom, CU500E and PC

Caution Observe order of installation

Observe the order stated below to avoid damage to the equipment.

Caution Do not push the servo by hand

Never try to push or pull the Blue Phantom servo mechanics by hand.Leave the transport protection under the horizontal X-rail in place. It canbe removed later when the system is powered.

Caution Do not place the CU500E in the treatment room

Radiation may damage the electronics of the CU500E. Place theCU500E in the control room near the PC.

Caution Do not cover the ventilation slits of the CU500E

To prevent overheating and subsequent damage to the CU500E, leaveenough room around the CU500E and do not cover the slits.

Caution Unexpected movement

Make sure that the CU500E is switched off before connecting the drivecontrol cable between the CU500E and the Blue Phantom.

Caution Install CAN Bus board and driver before installing OmniPro-Accept

If you have purchased the CA24, the CAN Bus board (hardware) and theCAN Bus board driver must be installed before installing the OmniPro-Accept software.

Please follow this installation procedure:

1. Install the OmniPro-Accept software on the PC.

2. Connect one end of the serial communication cable to port A (labeledControl Computer) on the front panel of the CU500E.

3. Connect the other end of this cable to a serial port of the PC.

4. Plug the mains power cables into the mains power inlets of the CU500E, thePC and the monitor.

5. Connect the mains power cables to grounded mains power outlets.

6. Attach the Drive Control Cable to the DRIVE CONTROL connector on theBlue Phantom. Lock the connectors by tightening the two screws.

7. Plug the Drive Control Cable into the DRIVE CONTROL input on the rear ofthe CU500E. Take care not to force it into position.

8. Attach the hand control to the REMOTE CONTROL connector on the BluePhantom.

9. Switch on power to the PC and the monitor. Wait until Windows hasfinished booting.

10. Switch on power to the CU500E. Wait until the CU500E has finishedbooting (confirmation beep at the hand control).


11. Use the Z movement key on the yellow area of the hand control incombination with the F key to move the servo upwards. Now remove thetransportation protection.


MD240 and CAN Bus interface

Caution Do not place the MD240 in the radiation field

Radiation may damage the electronics of the MD240. Keep the MD240and control cables out of the primary radiation field. The MD240 shouldbe placed as far away from the radiation field as cable length allows.

Caution Do not cover the MD240

To prevent the MD240 from internal overheating, do not block theventilation holes and the circulation of air around the MD240.

Caution Install CAN Bus board and driver before installing OmniPro-Accept

If you have purchased the CA24, the CAN Bus board (hardware) and theCAN Bus board driver must be installed before installing the OmniPro-Accept software.

Installation of the PCI CAN Bus board and driver1. Switch off the PC. Make sure that all peripheral devices (monitor etc) are

powered down.

2. Install the PCI CAN Bus board into an available PCI slot.

3. Do not forget to fasten the slot cover with the screw you removed before.

4. Turn on the peripheral devices and the PC.

5. When rebooting Windows, the system may display a "New HardwareFound" message and ask for a driver. Cancel this installation assistantwithout installing a driver at this moment.

6. Execute OmniPro-Accept Setup and select the CANcard option. Specify thetype of CAN Bus board and choose the Install CANcard button.

7. Follow the instructions on the screen. The installation path for the CAN Busboard driver can be selected to your choice.

8. Reboot the PC before continuing with the OmniPro-Accept installation.

Connecting the MD240After installation of the CAN Bus board, connect the 9-pin D-sub plug of theCAN Bus cable to the CAN Bus board, and the round plug of the CAN Bus cableto one of the CAN Bus input connectors on the rear side of the MD240.

Then power the MD240 and wait until you hear the confirmation beep indicatingthe success of the boot procedure.


Installation Verification (Blue Phantom, CU500E)After hardware installation, the overall system function should be verified.Before doing this, please study the OmniPro-Accept System Manual. You needto know how to start the software and perform a simple scan. The followingfunctions should be verified:

• Servo movement,

• Electrometer control,

• High voltage.

Servo movementVerify the servo movement functions as follows:

1. Ensure that the CU500E is switched on and that it is connected to the PC.

2. Start the OmniPro-Accept program.

3. Define the following:

• available equipment and at least one accelerator under Equipment,

• one 3D servo under Servos,

• one detector under Detectors,

• the CU500E and the COM port in use under Controllers.

4. Select Water Measurement and Edit.

5. Select radiation device, servo, detector type and doserate measurement andleave with OK.

6. With the yellow movement keys on the hand control, drive the servomechanics to the following point: middle of the phantom (position 0 on therulers) in the horizontal dimensions X and Y, and upwards (e.g. position 160mm) in Z.

7. At this position, define Isocenter and Water Surface with the hand control atthe phantom. Refer to the chapter Hardware description if you need moredetailed information how to use the hand control.

Note: If a TMR probe is mounted in the Blue Phantom, it can take approx. 5seconds until the confirmation beep appears when defining the watersurface. This is because the system also reads out the position of thefloat.

8. Define a single profile scan in the measurement queue.


9. Enter the Control Panel:

Figure 33. The CU500E Control Panel.

10. Choose Servo as the coordinate system. Check that the displayed position isdisplayed as 0, 0, 160 mm (X, Y, Z).

11. Using the Go To function, enter a position, e.g. 100, 100, 100 mm and pressGo:

Figure 34. The Detector positioning window.

12. Verify the travelled distances in all three directions by looking at the steelrulers, and check that the displayed position corresponds with the actualposition in the phantom.


Electrometer Control1. Ensure that the High Voltage (HV) in the CU500E Control Panel is set to

zero.

2. Connect detectors (if available: CC13 ionisation chambers) to the Field andReference inputs on the CU500E.

3. Move the field detector to the central beam, at approx. Isocenter depth.

4. In the CU500E Control Panel, under Channel, select Ratio.

5. Set a High Voltage of +300 V.

6. Turn on the accelerator.

7. Select Auto gain under Gain / Range. Wait until the gain setting procedurehas finished.

8. Turn off the accelerator.

9. Check that the displayed offset signal (background) is low: not more than20.0 to 30.0 ADC units.

High Voltage

WARNING HAZARDOUS VOLTAGE

The CU500E provides voltages of up to 480 V DC with low currents.

Always set the high voltage to zero before connecting /disconnecting detectors.

Never touch the servo (at earth potential) and the TNC inputconnectors on the CU500E at the same time.

1. In the CU500E Control Panel, set the High Voltage to zero.

2. Disconnect the detectors.

3. Connect the common input of a high impedance voltmeter to the TNC fieldresp. TNC reference input of the CU500E.

4. In the CU500E Control Panel, set the High Voltage to some values between-300 V and +300 V.

5. Check the measured voltages. With 100 MΩ impedance, the measuredvoltages should differ only by a few percent from the programmed voltages.


Installation Verification (CAN Bus board, MD240)After the installation of hardware, CAN Bus board driver and OmniPro-Acceptsoftware it should be verified that the CAN Bus board and the MD240 arerecognised. To do this, follow the procedure described below.

1. Ensure that CU500E and MD240 are switched on.

2. Start the OmniPro-Accept program.

3. Define the following:

• available equipment and at least one accelerator under Equipment,

• one 3D servo under Servos,

• the CU500E and the MD240 under Controllers,

• the CA24 under Detectors.

4. Select Water Measurement and Edit.

5. Select radiation device, servo, CA24 as detector and doseratemeasurement, and leave with OK.

6. Define a single scan in the measurement queue.

7. Enter the control panel:

Figure 35.The MD240 Control Panel.

8. Make a background subtraction. If the background subtraction issuccessful (indication Defined under Background) the CAN Bus board andthe MD240 are recognised correctly.

Blue Phantom Manual [DWA000 90001 02] Setting up for measurement • 59

Setting up for measurement

IntroductionThis chapter describes the setup of the Blue Phantom for measurements in thebeam. It is assumed that the equipment has been installed and verified accordingto the section Installation. Instructions for performing measurements areprovided by the OmniPro-Accept System Manual.

WARNING PROTECTIVE GROUND

All equipment must be connected to mains power outlets withprotective earth.

Caution No earth connection to treatment system

Avoid metallic contact between any part of the Blue Phantom, its cablesor detectors, and the treatment machine or the treatment couch.

Figure 36. Blue Phantom Setup.

60 • Setting up for measurement [DWA000 90001 02] Blue Phantom Manual

Blue Phantom and AquaLift

WARNING HAZARD DURING TRANSPORT

With filled water reservoir, AquaLift may be difficult to stop oninclined floors. Always empty the water reservoir before movingAquaLift over inclined surfaces.


The Blue Phantom weights about 45 kg without water. Do not lift theBlue Phantom alone.


AquaLift weights up to 500 kg when filled with water. Keep your feetaway from the wheels when moving AquaLift. Always lock AquaLiftwith the support screws during use and storage.

Caution Accidental water leakage

When using the Blue Phantom, always ensure that an accidental waterleakage will not cause any damage to the building or to other equipment.



Place Blue Phantom on AquaLift1. Place the Blue Phantom on the lift table of the AquaLift. Choose the

orientation under the treatment machine according to the application.

2. Lift the filling tube out of the tube support of AquaLift and fasten it on theedge of the Blue Phantom.

Figure 37. Attaching the filling tube to the Blue Phantom.


3. Move AquaLift to position the Blue Phantom to the desired location belowthe treatment head.

4. Move AquaLift to adjust the lines marked on the bottom of the BluePhantom roughly to the crosslines of the light field.

Figure 38. Adjusting the phantom to the central beam.

5. Lower and fasten the support screws on AquaLift.

6. Use the lateral adjustment handles to fine-adjust the position. Ensure that thelight field crosshairs and the crosshairs on the bottom of the Blue Phantomare superimposed. Align the vertical indicators on the Blue Phantom withthe positioning lasers.

7. Roughly level the empty phantom with a spirit level, using the levellinghandles on AquaLift.

Fill Blue Phantom

Caution Dry pump


1. Fill the Blue Phantom with water as follows. Do not fill more water than upto a maximum of 2 cm from its top edge.

a. Set the Function selector on AquaLift to PUMP.

b. Press the PUMP switch to FILL PHANTOM .

c. Return the PUMP switch to mid-position when the Blue Phantom isfilled.

2. Remove the filling tube from the Blue Phantom and place it in the tubesupport (For TPR/TMR measurements, do not remove the filling tube).


Adjust SSD


The lifting table moves close to the equipment shelf. Keep handsaway from the equipment tray when operating the lifting table.

Set the Function selector on AquaLift to LIFT . Press the LIFT switch to UP orDOWN as required.

Position the water surface to the desired SSD (use a piece of paper on the watersurface and switch on the treatment machine's light distance indicator).

IMPORTANT NOTICE Fine-levelling procedure

The fine levelling procedure is described in the section Fine-Levelling the Blue Phantom.


With filled Blue Phantom raised to the highest position, the centre ofgravity will be high. AquaLift may tip over if it is moved and collideswith other objects.

Do not move AquaLift with filled Blue Phantom in the highestposition.

Empty Blue PhantomWhen measurements are finished, empty the Blue Phantom as follows:

1. Place the filling tube in the Blue Phantom.

2. Set the Function selector on AquaLift to PUMP.

3. Press the PUMP switch to EMPTY PHANTOM.

4. When the Blue Phantom is empty, return the PUMP switch to mid-position.

5. Set the Function selector on AquaLift to LIFT .

6. Press the LIFT switch to DOWN.

7. When the lift table has reached its lowest position, release the LIFT switch.

8. Switch off power on AquaLift.

9. Fit the plug to the tube support opening if you leave the filling tube in theBlue Phantom.

10. Before moving AquaLift, loosen the support screws by turning themcounter-clockwise.

Caution Do not store water in phantom

Always finish measurement sessions by emptying the Blue Phantom. ThePerspex walls may distend through long-term exposure to water.

Caution Do not leave ionisation chambers in water

Never leave an ionisation chamber in water longer than necessary.Increasing humidity inside the chamber can lead to faulty measurements.


Blue Phantom and Lift Table / Water Reservoir

WARNING HAZARD DURING TRANSPORT

With filled water tank, the Water Reservoir may be difficult to stopon inclined floors. Always empty the Water Reservoir before movingit over inclined surfaces.


The Blue Phantom weights about 45 kg without water. Do not lift theBlue Phantom alone.


The Water Reservoir weights up to 300 kg when filled with water.Keep your feet away from the wheels when moving the WaterReservoir. Always lock the Water Reservoir with the parking brakesduring use and storage.

Caution Accidental water leakage

When using the Blue Phantom, always ensure that an accidental waterleakage will not cause any damage to the building or to other equipment.



Place Blue Phantom on Lift Table1. Place the Blue Phantom on the Lift Table. Choose the orientation under the

treatment machine according to the application.

2. Position the Water Reservoir Carriage close to the Blue Phantom. Lift thefilling tube out of the tube support of the Water Reservoir and fasten it onthe edge of the Blue Phantom.

Figure 39. Attaching the filling tube to the Blue Phantom.


3. Move the Lift Table to position the Blue Phantom to the desired location infront of or below the treatment head.

4. Move the Lift Table to adjust the lines marked on the bottom of the BluePhantom roughly to the crosslines of the light field.

Figure 40. Adjusting the phantom to the central beam.

5. Lock the Lift Table by fastening the parking brakes.

6. Use the lateral adjustment handles to fine-adjust the position. Ensure that thelight field crosshairs and the crosshairs on the bottom of the Blue Phantomare superimposed. Align the vertical indicators on the Blue Phantom withthe positioning lasers.

7. Roughly level the empty phantom with a spirit level, using the levellingframe of the Lift Table.

Fill Blue Phantom

Caution Dry pump


1. Press the Fill button on the hand control of the Water Reservoir. Do not fillmore water than up to max. 2 cm from the Blue Phantom's top edge.

Note: If the Fill button is pressed the first time after the water reservoir hasbeen connected to the mains outlet, there is an incident waiting time ofappr. 15 seconds. During this time, the electromagnetic valve is opened inorder to remove the air between the pump and the electromagnetic valve.

2. If the desired water height is reached, press the Stop button.

3. Remove the filling tube from the Blue Phantom and place it in the tubesupport (For TPR/TMR measurements, do not remove the filling tube).


Adjust SSD



Move the Lift Table up or down as required.

Position the water surface to the desired SSD (use a piece of paper on the watersurface and switch on the treatment machine's light distance indicator).

IMPORTANT NOTICE Fine-levelling procedure

The fine levelling procedure is described in the section Fine-Levelling the Blue Phantom.


With filled Blue Phantom raised to the highest position, the centre ofgravity will be high. The Lift Table may tip over if it is moved andcollides with other objects.

Do not move the Lift Table with filled Blue Phantom in the highestposition.

Empty Blue PhantomWhen measurements are finished, empty the Blue Phantom as follows:

1. Place the filling tube in the Blue Phantom.

2. Press the Drain button on the hand control of the Water Reservoir.

3. When the Blue Phantom is empty, press the Stop button.

4. Lower the Lifting Table to its lowest position.

5. Remove the filling tube from the Blue Phantom and place it in the tubesupport opening of the Water Reservoir.

6. Before moving Lift Table and the Water Reservoir, release the parkingbrakes.



Caution Do not leave ionisation chambers in water

Never leave an ionisation chamber in water longer than necessary.Increasing humidity inside the chamber can lead to faulty measurements.


Control Cables

Caution Unexpected movement

Make sure that the CU500E is switched off before connecting the drivecontrol cable between the CU500E and the Blue Phantom.

Caution Set high voltage to zero

Always set the high voltage to zero before connecting / disconnectingchamber cables or detectors. Of course, this is also fulfilled if theCU500E is switched off.

1. Connect the 37-pin control cable between the DRIVE CONTROL cableconnector, located on the rear side of the CU500E and the DRIVECONTROL connector of the Blue Phantom. Take care not to force the cableconnectors into position. Tighten the screws lightly.

2. Connect the serial interface cable between the RS 232 C-A connector,located on the front panel of the CU500E control unit, and the selected serialinterface of the computer.

3. Connect the chamber extension cables to the appropriate Field andReference TNC input sockets, located on the front panel of the control unit.

Figure 41. The front panel of the CU500E Control Unit.

4. Connect the hand control to the REMOTE CONTROL connector on the BluePhantom.

TNCFieldTNCRef.Serial cable

to PC


Detectors

Caution Set high voltage to zero

Always set the high voltage to zero before connecting / disconnectingchamber cables or detectors. Of course, this is also fulfilled if theCU500E is switched off.

Caution Use specified detectors

Scanditronix-Wellhöfer will not be responsible for the performance of thesystem if detectors other than those specified are used for each type ofradiation.

Field and Reference Detector explanationTwo detectors, a field and a reference detector, are required to use the BluePhantom in continuous measurement mode under a linear accelerator. Field andreference detector should be of the same type, or if this is not possible, have atleast approx. the same active volume. Standard field resp. reference detectors forthe Blue Phantom are the CC13 ionisation chambers.

Using the continuous measurement mode of the Blue Phantom has twosignificant advantages compared to the step-by-step (integrating) measurementmode. It significantly reduces scanning time, and it delivers more data points in agiven time than in step-by-step mode.

A linear accelerator produces pulsed radiation. If only a field detector would beconnected and continuous measurement would be used, the pulsing of the beamwould directly appear on the curve. The signal of a reference detector is neededin order to remove the accelerator's pulsing from the curve, using real-timedivision of the field detector signal by the reference detector signal.

Field detector1. Mount the field detector in the phantom using the specified detector holder.

2. Insert the detector cable into the clamp on the Blue Phantom's metal frame(for pull-relief of the detector).

3. Connect the detector cable to the field chamber extension cable.

Figure 42. The CC13 as field detector.

CC13 detector holder

Detector holder locking screwDetector holder inclination correction

Detector locking screw


Reference detector1. Mount the reference detector into the reference detector holder.

2. Clamp the reference detector holder to the front or rear metal tube of theBlue Phantom's aluminum frame.

3. Connect the detector cable to the reference chamber extension cable.

Figure 43. The reference detector holder.

Notes:

1. The reference detector must always be within the primary radiation field toprovide a stable signal.

2. The reference detector should be placed well in the field as this reduces theeffect of unstable field-asymmetry. On the other hand, care should be takennot to shadow the field detector with the reference detector.

IMPORTANT NOTICE CU500E Warm-Up and Background subtraction

For the CU500E, observe a warm-up and stabilisation time of 30 minutes. Ifionisation chambers are used, the high voltage should be already applied duringthe warm-up time. If semiconductors are used, do not apply a high voltage.

Background subtraction should be done initially after the warm-up time, thenrepeatedly every 30 minutes, and each time the gain settings have changed.

Comments on beam directionThe way of positioning detectors in the beam depends on the type of detector.

• Semiconductor field detectors should be mounted vertically (i.e. parallel tothe beam, axial radiation).

• Semiconductor reference detectors should be mounted horizontally (i.e.perpendicular to the beam, radial radiation).

• Plane parallel chambers (PPC chambers, NACP) and cylindrical chambers(FC chambers, RK chamber) should be mounted horizontally (i.e.perpendicular to the beam, radial radiation).

• Cylindrical compact chambers (CC chambers) can be mounted eitherhorizontally or vertically, or, if used as reference chamber, at any otherangle between 0° and 90°, since they are of isotropic construction.


Figure 44. Beam direction for different types of detectors.

Fine-Levelling the Blue PhantomAs the last part of the measurement setup, this section describes the fine levellingof the Blue Phantom's mechanical frame, using a CC13 chamber and thealignment cap. A different method exists for levelling the mechanical frameusing the CA24 chamber array. This is described in the section CA24measurement setup.

After filling the Blue Phantom with water, the 3-D servo frame has to be levelledrelative to the water surface. This fine levelling is done according to thefollowing procedure:

1. Mount the CC13 detector holder in the Blue Phantom. Have the whitealignment cap ready.

2. Slide the CC13 chamber through the hole of the field chamber holder andinto the hole of the alignment cap. Insert the chamber as far as possible intothe alignment cap, usually until the thin black ring. The active volume (theblack part) of the chamber points away from the X-axis, towards thephantom's front wall.

3. Slide the chamber with the mounted alignment cap backwards until the rearedge of the alignment cap touches the field chamber holder.

4. Secure the chamber in the holder by closing the chamber locking screw.Leave the alignment cap mounted.

5. Switch on the CU500E control unit.

6. Start the OmniPro-Accept software. Under Measure, Water select the BluePhantom as the active measuring device and confirm with OK. This has thepurpose to send the Blue Phantom's external limits to the CU500E controlunit.


Figure 45. Alignment cap mounted on the CC13.

7. With the hand control, position the chamber into one of the corners of theBlue Phantom, approx. 5 cm away from each wall and at the water surface.

8. To check whether the chamber is really at the water surface, turn thealignment cap so that the crosslines on the front of the cap are at 45°towards the water surface. Look at the cap from below the water surface.The exact water surface position is reached if the lines form a precise cross(see the figure below).

Figure 46. CC13 exactly at water surface, seen from below the water surface line.

9. Ensure that at the starting corner the chamber is exactly at the water surface.Do not use the levelling mechanism here, only position the chamber with thehand control.

10. Store the current chamber position as position A on the hand control.

45°watersurface


11. With the hand control, horizontally move the chamber to the next corner ofthe Blue Phantom.

Note: Do not move the servo vertically during the levelling procedure!

12. Store this position as position B on the hand control.

13. Look at the alignment cap. If the chamber is not exactly at the water surface,loosen the locking screw at this corner of the servo frame (see below). Turnthe levelling screw to vertically adjust the mechanical frame so that the lineson the cap again form a precise cross. Then tighten the locking screw.

Note: Always begin the levelling adjustment from below the water surface.

Do not loosen one of the remaining three locking screws while adjustingone position.

Figure 47. Levelling mechanism.

13. Repeat steps 11 through 13 for the two remaining corners of the BluePhantom, which are stored as position C and position D.

Note: You can use the stored positions to easily approach the levelling pointsagain.

14. Remove the alignment cap. It is not suitable for measurements.

Levelling screw

Locking screw


Setup for TPR/TMR measurementsIn addition / modification to the steps described so far, follow this procedure toprepare the Blue Phantom for TPR/TMR measurements.

1. The reference chamber must be fixed on the accessory holder clamp whichis delivered with the TPR/TMR option. Do not use the standard referencechamber holder during TPR/TMR measurements.

2. If you use the AquaLift, connect the remote control cable between theREMOTE CONTROL connector on AquaLift and the PUMP CONTROLconnector on the Blue Phantom. If you use the Water Reservoir with bi-directional pump, connect the remote control cable coming from the WaterReservoir to the PUMP CONTROL connector on the Blue Phantom.

3. Fill the Blue Phantom with water only to approximately 15 cm height. Sincethe measurement starts at the water surface, you will otherwise not haveenough scan length available. Leave the filling tube in the phantom.

4. Verify that the float of the TMR probe also sits on the water surface.

5. With the hand control, move the CC13 field detector to the actual watersurface in the central beam (use alignment cap).

6. With the hand control, define the Water Surface and the Isocenter positionat this point.

Note: If a TMR probe is mounted in the Blue Phantom, it can take approx. 5seconds until the confirmation beep appears when defining the watersurface. This is because the system reads out the position of the float.

7. Remove the alignment cap.

8. Lift up the Blue Phantom until the isocenter, indicated by the lasercrosspoints, is located at the water surface.

Notes:

1. If you use AquaLift, the Function selector must be in the PUMP position toenable remote control.

2. It is not necessary to manually switch the system into TMR mode, neitherduring the above setup procedure nor before starting a measurement.

3. Always redefine isocenter and water surface according to the aboveprocedure before selecting a TPR/TMR measurement in the software.

4. The detector related correction for effective point of measurement will betaken into account automatically.

5. When the pump is switched on and starts pumping water into the phantom,a wave may disturbe the measurement. In order to minimise this effect, thesystem first pumps 2 cm of water out of the phantom, then reverts thepumping direction. The measurement itself starts when the previous watersurface is reached again. This procedure is only performed when themeasurement is done with pumping water in.

6. In the large Blue Phantom (48 x 48 x 48) you can face the problem that theinitial 15 cm of water are not sufficient, and during the 2 cm empty / refillprocedure the transducer's float sits up on the bottom of the Plexiglas tube -which in turn causes a "position not reached" message prior to the start ofthe measurement itself. In this case fill in more water initially.


Figure 48. Remote control cable between Blue Phantom and AquaLift resp.Water Reservoir.


CA24 Chamber Array and MD240 Electrometer

Measurements with the CA24 Chamber Array require both the MD240electrometer and the CU500E (the latter is used for detector positioning).

For conventional teletherapy, a reference detector should be installed asdescribed previously.

Note: Do not use a reference detector for measurements under a dynamicwedge.

The following section describes how to mount the CA24 in the Blue Phantom.

Note: Preferably mount the CA24 in the empty phantom.

Figure 49. CA24 mounted in a Blue Phantom.

rear wall

front wall


CA24 adapter set descriptionThe CA24 is mounted horizontally on the X-axis of the Blue Phantom. Theadapter set to fix the CA24 on the X-axis contains a locking shoe, a left sidesliding shoe and a right side sliding shoe (left and right are seen when lookingthrough the phantom's front wall).

These adapters are usually mounted on the CA24 already.

The locking shoe is located in the middle of the array's frame. When mountingthe CA24 on the X-axis, it will surround the X-axis guide rail shoe (the metal pinon the guide rail shoe is not used in this case).

Figure 50. Locking shoe.

The left side and right side sliding shoes are used to mount the array on the X-axis. These adapters have locking pieces which are pushed against the array fromunderneath the X-rail and which are secured by two sliding locks. The slidinglocks can be easily identified by their red caps on each end.

Figure 51. Left side sliding shoe.

Locking shoe

Rear sliding lock

Front sliding lock

Locking piece

Metal chain

Opening for X-axis ruler

Hole for X-railHole for tooth belt


Mounting the CA24 in the Blue Phantom

Caution Leave protection cap mounted

In order to avoid damage to the CA24, do not remove the protection cap until theCA24 has been mounted completely.

Figure 52. CA24 with acrylic protection cap.

1. If necessary remove any single detector holder from the X-axis. Position theX-axis guide rail shoe to the middle of the rail. The position indicator on therear side of the shoe must be located at 0 cm. Move the X-rail upwards to itshighest position.

2. On the CA24, push the sliding locks outwards and remove the lockingpieces. The locking pieces remain connected to the adapter by metal chains.

3. Place yourself at the phantom's front wall, having the connector box to theright. Approach the X-rail holding the array in your hands in a way that thelocking pieces hanging at their metal chains are located behind the X-axisruler. Then slightly turn the array towards you and place it on the round X-rail, while sliding the opening at the back of the locking shoe onto the X-axis guide rail shoe.

Note: Do not yet secure the rear locking screw.

Figure 53. Rear locking screw.

protectioncap

Rear lockingscrew


4. Mount the left locking piece by inserting the two pins in their associatedholes at the fixed part of the adapter. Secure the locking piece by pushingthe sliding locks inwards. Repeat the same with the right locking piece. (Leftand right are related to the point of view you have when looking through thephantom's front wall).

5. The array can possibly still be moved a small distance (a few millimeters)along the X-axis, but it cannot be twisted. Manually slide the array towardsthe right, then tighten the rear locking screw.

Figure 54. CA24 mounted on X-axis.

Mounting the CA24 cable supportThe CA24 cable support is used for guiding the CA24 signal cable to the MD240electrometer. Furthermore it provides a fixation mechanism for the pressurebalance tube.

You may choose to leave the cable support mounted also when doingmeasurements with other detectors.

On the Blue Phantom, the cable support is installed on the mounting plate withthe label "Mount CA24 cable support here".

To mount the cable support, please proceed as follows.


Figure 55. Mounting plate and X potentiometer cable holder.

1. Locate the cable holder for the X potentiometer cable. Take out and open thetwo cable connectors (thus interrupting the connection of the Xpotentiometer to the phantom's connector box).

2. Loosen and remove the two screws of the X potentiometer cable holder.

3. Remove the X potentiometer cable holder.

4. Mount the CA24 cable support by using the two mounting screws with blackscrew head.

Note: The arrows on the stickers on the mounting plate and the cable supportshall point to each other.

Figure 56. Mounting the CA24 cable support.

X potentiometercable holder

Screws

CA24 cablesupport

Mounting screws


5. Insert the CA24 signal cable into the cable support (see figure below):

a. Open the top cover of the cable support by manually pulling it upwardsat the snap-in lock side.

b. Insert the signal cable.

c. Close the top cover by first inserting it into the round openings and thenpushing it downwards to lock.

Figure 57. Inserting the CA24 signal cable.

6. Close the two connectors of the X potentiometer cable and attach the cableinto its holder on top of the CA24 cable support.

7. Attach the CA24 pressure balance tube end to the cable support by turning itclockwise approx. ¼ of a turn.

Figure 58. CA24 cable support with all cables mounted.

Signal cable

Round opening

Snap-in lock

Top cover

X potentiometercable

Pressurebalance tube

CA24 signalcable


CA24 measurement setupWith the CA24 mounted on the X-axis in the empty phantom as described in theprevious section, continue with the following procedure.

1. Manually turn the Blue Phantom on the lift table so that the X-axis coincideswith the desired measuring direction.

2. Remove the protection cap from the CA24.

3. Redefine the external limits with the hand control. Especially in X direction,open the limits as far as possible without collision, to gain sufficientscanning distance. The CA24 needs a minimum of 2 cm symmetrically tothe central beam for scanning in X direction.

Caution Possible collision

By redefining the external limits with the hand control in all threedimensions, make sure that the CA24 cannot collide with the phantomwalls or other objects (TMR probe).

4. Turn on the light field.

5. Use the mechanisms on the lift table to adjust and level the phantom. Initiallevelling can be done with a spirit level. Ensure that the light field crosshairsand the crosshairs on the bottom of the Blue Phantom are superimposed.

6. Fill the Blue Phantom up to the desired SSD.

7. Put the levelling plates on the CA24 as shown in the figure below.

Figure 59. Levelling plates on the CA24.

8. With the hand control, move the CA24 towards the Blue Phantom's rearwall, until the upper Y limit is reached.

9. With the hand control, move the chamber array to some centimeters depth.Look into the phantom from below the water surface. At each side of thearray, you will see the black cone on the levelling plate and its mirror.Slowly move the array towards the water surface until you see the tips of thecones touching each other. At this moment, the geometrical midpoints of thechambers are located exactly at the water surface. Use the levelling screwson this end of the mechanical frame to ensure that the CA24 is parallel to thewater surface.

Note: The use of the levelling screws is described in the section Fine-Levellingthe Blue Phantom previously.

Levelling plates

Water surface


10. With the hand control, move the CA24 towards the Blue Phantom's frontwall.

Note: Do not move the servo vertically during the levelling procedure!

11. Again, look into the phantom from below the water surface. If the tips of thecones do not touch each other, use the levelling screws on the servo frame toadjust the CA24 and make it parallel to the water surface.

12. With the hand control, move the CA24 back to the middle of the field (lightfield crosshair is reflected on the chamber tips and on the levelling plates).Carefully ensure that the CA24 is still at water surface.

13. Move the CA24 on the X-axis so that the middle chamber of the CA24(chamber 12) is located in the central beam.

Note: If you need to shift the CA24 by more than ±0.5 cm away from themiddle of the rail in X direction, return to the 0 position and shift thewhole phantom instead, using the adjustment handles on the lift table.

14. With the hand control, define this position as Water surface.

15. Define the same position as Isocenter. If the isocenter is not at the watersurface but in another depth, vertically move the servo to the isocenter depthbefore.

16. If a reference chamber is used, mount it in the standard reference chamberholder, and connect the 8 m chamber extension cable which is deliveredwith the CA24.

Note: Do not use any other (longer) chamber extension cable. It is importantfor proper results of the reference division that the length of thechamber extension cable equals the length of the CA24 signal cable.

Caution MD240: Set high voltage to zero

Always set the high voltage to zero before connecting / disconnecting theCA24 signal cable or the reference chamber extension cable. Of course,this is also fulfilled if the MD240 is switched off.

Note: You can set the high voltage to zero from the MD240 LC display bypressing Setup, Bias, OFF.

17. Connect the CA24 signal cable and the small plug with the calibrationfactors to the rear side of the MD240 (see figure below).

18. If used, connect the reference chamber extension cable to the rear side of theMD240 (see figure below).


Figure 60. MD240 cable connections.

19. Switch on the MD240 (or, if only the high voltage was disabled, re-enable itby pressing Setup, Bias, ON and Enter to return).

IMPORTANT NOTICE Factors not read out if only high voltage was disabled

If only the high voltage was disabled and is now re-enabled, the calibrationfactors for the CA24 are not automatically read out from the small plug. Toenforce this, you must press the (hidden) Reset button on the MD240 after re-enabling the high voltage.

Figure 61. MD240 LC display and keys.

Small plug withcalibration factors

CA24 signal cable

Reference chamber extension cable

Reset(hidden)


IMPORTANT NOTICE MD240 Warm-Up and Background subtraction

For the MD240, observe a warm-up and stabilisation time of 30 minutes, thehigh voltage already being applied to the CA24.

After this warm-up time, the temperature of the MD240 should be stable and inthe range between 36°C and 40°C. The temperature can be verified from theMD240 LC display by pressing Serv, Sysck and then repeatedly Next to stepthrough the display until the temperature appears. Return with pressing Enter.

Background subtraction should be done initially after the warm-up time, thenrepeatedly every 30 minutes, and each time the gain settings have changed.

Figure 62. MD240 cable connection flowchart.

Plug CAN bus cable.

MD240switched on?

Switch HV off at front panel.

Plug CA24 signal cable.

Plug CA24 ID connector.

Connect reference chamber.

Switch HV on at front panel.

Plug CA24 signal cable.

Plug CA24 ID connector.

Connect reference chamber.

Switch MD240 on.

MD240 connected.

YESNO

Press Reset to read factors.


Setup for in-air measurements

Headscanner servos HSC 1D and HSC 2D

GeneralThe one-dimensional headscanner (HSC 1D) is inserted in the treatmentmachine's accessory holder and can be positioned inline and crossline withoutcollimator rotation.

The two-dimensional headscanner (HSC 2D) is inserted in the treatmentmachine's accessory holder and can scan along any of the two field axes anddiagonals. The chamber is guided in a PTFE block underneath a variablePlexiglas build-up layer (standard 6 mm). For electron studies the two-dimensional headscanner can also be positioned on the treatment couch with theelectron cone touching the surface of the build-up layer.

For both headscanners, different build-up layers are optionally available to caterfor a variety of photon and electron energies. Build-up layers may be exchangedeven if the headscanner is attached to the accessory holder. Furthermore, Energyverification can be performed by a scan underneath an optional acrylic wedge.

Adaptations to the accessory holders of General Electric, Elekta (Philips),Siemens and Varian accelerators are available.

Possible measurement typesHSC 1D • crossline and inline (mechanical changeover of the X-rail),

• beam (using the optional acrylic wedge).

HSC 2D • crossline, inline, diagonals,• beam (using the optional acrylic wedge),• isodoses (isodose tracking option).

Installing the headscanner and detectorsInstall the headscanner on the treatment head as follows:

1. Insert the headscanner into the accessory holder right up to theheadscanner's mechanical stop.

Note: The gun sticker shall face the gun side and the targ et sticker shall facethe target side.

2. Fine adjust and tighten the headscanner onto the accessory holder with theclamping levers.

3. Insert the field detector into the PTFE block on the X-rail of theheadscanner. Fasten the detector cable into the cable clips. Make sure thatthe detector cable will not cause any mechanical jam or disturb themeasurement at any angle.

Note: Only the CC13 ionisation chamber can be used as field detector due tothe adaptation hole in the PTFE block.


4. Insert the reference detector into the reference chamber clamp and fix theclamp at the treatment head.

5. The cable set from the Blue Phantom (control cable, hand control, chamberextension cables) is also used for the headscanner. Connect the hand controland the control cable to the headscanner, and the chambers to the chamberextension cables.

6. Switch on the CU500E. With the hand control, position the field detectorinto the midpoint of both directions (identified by a scratch mark on therails). It is also possible to use the OmniPro-Accept software, select theappropriate headscanner type and position to zero in both directions (useservo coordinates).

7. Check that the crosshairs of the PTFE block and the crosshairs of the lightfield are superimposed. If necessary, fine-adjust the mechanical stop or theclamping mechanism to ensure coincidence of the collimator cross hairs andthe PTFE block crosshairs.

8. Tighten all screws with counter-nuts where provided to ensure areproducible positioning for future use.

Mounting of Build-up layers and WedgeThe build-up layers and the optional acrylic wedge may be attached to theheadscanner without removing the latter from the accessory holder.

By opening the two black headed screws, the build-up layer may be pulled outand a different build-up layer or the acrylic wedge may be inserted in a similarway.

Measurement SetupThe one-dimensional headscanner can either measure inline or crossline profileswithout being removed from the accessory holder. This is achieved by looseningthe two hex-set screws holding the X-rail on the fixed dovetail shoes.

The X-rail assembly can be removed and turned by 90°. It is then connected to asecond set of fixed dovetail shoes and tightened with the hex-set screws again.

Notes:

1. Ensure that the X-rail is inserted until the mechanical stops are reached,which have been pre-adjusted in the factory.

2. To ensure that the stops are in the correct position verify that the crosshairson the PTFE block and the crosshairs of the light field are superimposed.

Since the one-dimensional headscanner cannot be positioned on the treatmentcouch, the measurement of electron beams using an electron applicator is notpossible.


The two-dimensional headscanner (HSC 2D) can be positioned in the accessoryholder as well as on the treatment couch, with an electron applicator touching thePlexiglas build-up layer. The table below shows the various build-up layers,which are optionally available for measurement of electrons and photons. Astandard 6 mm build-up layer is delivered with each headscanner.

Thickness (mm) Photons (MV) Electrons (MeV)

10

15

20

25

1 - 4

4 - 6

6 - 10

10 - 15

4 - 8

8 - 12

12 - 18

> 18

Table 1. Additional build-up layers for measurement of electrons and photons.

To carry out measurement, proceed as follows.

1. Prepare the OmniPro-Accept Software for measurement.

2. Select the appropriate headscanner type.

3. Once the headscanner is selected, the appropriate limits are transmitted bysoftware to the control unit. Defining external limits are not necessary, asthe external and mechanical limits are set automatically by the software.

4. Define the isocenter with the hand control.

5. When measuring with the acrylic wedge the definition of the water surfaceat one end of the wedge is also required. Furthermore, select beam asmeasurement type in this case. Then the profile, which is scanned under thewedge, is displayed as a depth dose curve.

For further details, please see the OmniPro-Accept System Manual.

Attachments and accessory holdersOn the following pages you can find drawings of the different headscanners, i. e.of the one-dimensional (HSC 1D) and two-dimensional (HSC 2D) versions. Onthe drawings of the two-dimensional (HSC 2D) version critical dimensions areshown for the various accelerator types.

You will also find drawings showing how to attach the reference chamber clamponto the accessory holder of the various accelerator types. This clamp isdelivered as standard with the headscanner.


Figure 63. Elekta (Philips) accessory holder and reference probe holder.

Figure 64. Elekta (Philips) and Siemens headscanner HSC 1D.

Front view

Top view

Referenceprobe holder

Accessoryholder

Referenceprobe holder

Mechanical stop

Dimension Y:

Elekta Y = 8.4 mmSiemens Y = 10.8 mm

Dimension V:

Elekta V = 20.5 mmSiemens V = 13.5 mm


Figure 65. Elekta (Philips) headscanner HSC 2D.

Figure 66. Siemens Mevatron accessory holder and reference probe holder.

Mechanical stop

Bottom view

Front view

Reference probeholder

Accessoryholder

Dimension C = 0 mmDimension V = 30 mm


Figure 67. Siemens headscanner HSC 2D.

Figure 68. GE Saturne series 4 accessory holder and reference probe holder.

Mechanical stop

Dimension C = 8 mmDimension V = 18 mm


Isocenter

Field10 cm x 10 cm

Top view

Front view


Figure 69. GE Saturne series 4 headscanner HSC 2D.

Figure 70. Varian accessory holder and reference probe holder.

Mechanical stop


Top view

Front view


Figure 71. Varian headscanner HSC 1D.

Figure 72. Varian headscanner HSC 2D.

Mechanical stop

Dimension V = 19.5 mm

Mechanical stop

Pre-adjustment

Dimension V = 28.5 mm


Blue Phantom Manual [DWA000 90001 02] Maintenance • 93

Maintenance

IntroductionTo ensure reliable operation, the mechanical parts of the servo systems should beinspected, cleaned and lubricated at regular intervals. The CU500E does notrequire regular maintenance and the AquaLift, Water Reservoir and Lift Tablerequire very little maintenance.

This chapter provides instructions for regular maintenance and the replacementof spare parts.


The CU500E contains lethal voltages up to 240 V AC and 480 V DC.Switch off and disconnect supply before servicing.


The MD240 contains lethal voltages up to 265 V AC and 800 V DC.Switch off and disconnect supply before servicing.


AquaLift, Electrical Lift Table and Water Reservoir contain lethalvoltages up to 240 V AC. Switch off and disconnect supply beforeservicing.

94 • Maintenance [DWA000 90001 02] Blue Phantom Manual

Daily Check

AquaLift and Water ReservoirCheck the following each time you use the pump:

1. Check that the water is not dirty. If there are particles in the water, do asfollows:

a. Change the water.

b. If the water still gets dirty, replace the pump impeller (applies only toAquaLift). See instructions in the section Replacing spare parts.

2. Check that there is no leakage. If there is leakage, check hose joints andtighten if necessary.

Monthly maintenance

Blue PhantomThe high-precision servo system must always be handled carefully to maintainits accuracy and to ensure smooth operation. In particular, it should be clean andfree from dust. The latter is especially important at building sites where newtreatment machines are being installed. Concrete dust may damage the tracks andball bearings of the servo and cause operational problems or reduce theprecision. Therefore, always store the Blue Phantom under clean conditions.


To prevent growth of algae, always use distilled or de-ionised water whenfilling the Blue Phantom from a water reservoir.




Cleaning and lubricating the visible parts of the servo should be done at monthlyintervals or when they appear dirty.


1. Use a cotton cloth moistened with alcohol or white spirit to clean the X-, Y-and the Z-rails.

2. Use a small, soft brush to apply a few drops of fine grade lubricant to the Y-rails.

3. Move the servos manually in the Y-direction to distribute the lubricant.Wipe off superfluous lubricant.

Use a cotton cloth and soap solution to wipe off dirt and calcareous depositsfrom the inside and outside of the water phantom. Do not use alcohol or othersolvents as these may damage the Perspex material.

HSC 1D and HSC 2DThe high-precision headscanner servo system must always be handled carefullyto maintain its accuracy and to ensure smooth operation. In particular, it shouldbe clean and free from dust. Therefore, always store the headscanner under cleanconditions.

Cleaning the visible parts of the headscanner should be done at monthly intervalsor when they appear dirty. Use a cotton cloth and soap solution for cleaning.

AquaLift, Water Reservoir, Lift TableUse a cotton cloth and soap solution to wipe off dirt and calcareous depositsfrom the outside of the Electrical and Mechanical Lift Table, Water Reservoirand AquaLift.

Z-drive assembly

X-driveassembly

Y-driveassembly

Y-rail

Z-rail

X-rail

Z-rail

Y-rail


Yearly Maintenance

Blue Phantom

Checking positioning accuracyAfter cleaning, check positioning as follows:

1. Connect the hand control to the Blue Phantom.

2. Connect the Blue Phantom to the CU500E as described in the chapterSetting up for measurement.

3. On the servo frame scales, note the position of the detector holder relative tosuitable reference points in the X, Y and Z directions.

4. In the OmniPro-Accept software, open the CU500E Control Panel and selectGoto.

5. Enter commands to move the servo to the following positions (use servocoordinates): X=100.0 mm, 200.0 mm, -200.0 mm, -100.0 mm and 0.0 mm.

6. For each position, record the displayed position and the distance measuredwith the ruler or measuring tape.

7. Repeat the test for the Y-axis and the Z-axis.

8. Check that the measured positions do not differ more than ± 1 mm from thedisplayed positions.

9. If positioning is inaccurate, your system needs to be serviced. Call yourScanditronix-Wellhöfer service representative.

HSC 1D and HSC 2D

Checking positioning accuracyCheck positioning as follows:

1. Connect the hand control to the headscanner.

2. Connect the headscanner to the CU500E as described in the chapter Settingup for measurement.

3. Note the position of the detector carriage relative to a suitable referencepoint on the drive rail.

4. In the OmniPro-Accept software, open the CU500E Control Panel and selectGoto.

5. Enter commands to move the servo to the following positions (use servocoordinates): X=100.0 mm, 200.0 mm, -200.0 mm, -100.0 mm and 0.0 mm.

6. For each position, record the displayed position and the distance measuredwith the ruler or measuring tape.

7. When using the HSC 2D, repeat the test for the Y-axis.

8. Check that the measured positions do not differ more than ± 1 mm from thedisplayed positions.

9. If positioning is inaccurate, your system needs to be serviced. Call yourScanditronix-Wellhöfer service representative.


Lift Table

Mechanical partsAll external parts of the lift table may be cleaned using commercially availabledetergents. No organic solvents must be used.

1. Remove the Blue Phantom from the lift table.

2. Clean with a fat dissolving detergent (e.g. alcohol) the bearings of rollersand parking brakes.

3. Grease the parts mentioned above.

4. The lift table should be checked for any signs of physical damage. Defectiveparts should be replaced.

Electrical Lift Table only: The telescope drive is maintenance free for 20,000times lifting and lowering over 300 mm vertical range. After this, the lift tablemay be send for revision to our factory.

Electrical control unit (Electrical Lift Table only)It is not permitted to open the electrical control unit. There are no userserviceable parts inside. In case of malfunction, the whole electrical control unitmust be exchanged (see the section Replacing spare parts).

It is required that the function of the overcurrent circuit breaker at the lowest andat the highest position is verified every 6 months. To do this, drive the lift tableto the end positions under visual control. The overcurrent circuit breaker isworking if the lift table stops at the end position and no noise from the motor canbe recognised.

To clean the housing of the electrical control unit, use a soft, dry duster or aduster moistened with a gentle cleaning agent. Do not use organic solvents. Theliquid you use for cleaning must be pH-neutral. Attention! Water or cleaningliquid seeping into the electrical control unit will destroy the same.

Hand control (Electrical Lift Table only)To clean the housing of the hand control, use a soft, dry duster or a dustermoistened with a gentle cleaning agent. Do not use organic solvents. The liquidyou use for cleaning must be pH-neutral.

The hand control should be checked for any signs of physical damage. Defectiveparts need to be exchanged. Water or cleaning liquid seeping into the handcontrol will destroy the same.


Water ReservoirAll external parts of the water reservoir may be cleaned using commerciallyavailable detergents. No organic solvents must be used.

1. Make sure the water reservoir is empty.

2. Clean with a fat dissolving detergent (e.g. alcohol) bearing of rollers andparking brakes.

3. Grease the bearings.

4. Check the proper function of the mechanical valve of the filling tube andadjust the valve or the screw if necessary. (Check the function of theelectromagnetic valve by filling the water phantom. Leave the filling tubeinstalled. If water flows back into the water reservoir by gravity, the valve isnot functioning and should be replaced).

5. The water reservoir should be checked for any signs of physical damage.Defective parts should be replaced.

2-yearly maintenance

AquaLiftThe bearings of the rear (turning) wheels should be lubricated with ball bearinggrease at 2-year intervals. Nipples are available for filling with a grease gun.

Figure 74. Rear wheels on AquaLift.

Wheels to belubricated


Replacing spare parts

WARNING USE ONLY APPROVED PARTS

Only spare parts provided or approved by the manufacturer must beused, otherwise operator safety and interference-free operationcannot be guaranteed. Violation will result in loss of warranty.

Scanditronix-Wellhöfer cannot be held liable for any damagesresulting from the use of accessories or consumables which are notprovided or approved by the manufacturer.

WARNING ONLY AUTHORIZED PERSONS SHALL REPAIR EQUIPMENT

Assembly, extension, modification or repair shall only be carried outby Scanditronix-Wellhöfer or by persons who have sufficientknowledge and skills and are authorised by Scanditronix-Wellhöfer.

CU500E and MD240

Replacing mains fuse

WARNING HIGH VOLTAGE

Always disconnect the mains supply before removing the mainsfuses.

You need a 3 mm flat-head screwdriver to open the fuse holder in the mainswitch.

Replace the fuse in the main switch as follows:

1. Turn off power to the unit and disconnect the power supply cord.

2. Insert the screwdriver in the slot at the fuse cover.

3. Pull out the fuse holder.

Figure 75. Replacing CU500E and MD240 mains fuses.

CU500EMD240


4. Replace the fuse with the same type and rating (see table below).

5. Insert the fuse holder. Note that the arrow beside the selected voltage rangemust point downwards to the white line on the mains connector (appliesonly to CU500E).

Voltage FuseCU500E 230 V

115 V5 x 20 mm T1/250 IEC 127/2-55 x 20 mm T2/250 IEC 127/2-5

MD240 85 V – 265 V 5 x 20 mm T3, 15/250 IEC127/2-5surge proof

Table 2. Fuses for CU500E and MD240.

Water Reservoir

Resetting automatic fuseThe Water Reservoir is equipped with an automatic fuse (6.3 A, time-lag) whichmay release if the pump unit is temporarily overloaded. To reset the automaticfuse, do as follows:

1. Loosen the retaining screws and remove the front cover from the WaterReservoir carriage.

2. Reset the automatic fuse by pressing the automatic fuse button, see below.

3. Mount the front cover and fasten the retaining screws.

Figure 76. Water Reservoir control unit with automatic fuse button.

Automatic fuse button


AquaLift

Removing coverFor access to the fuses, the transformer and the pump, the pump box cover mustbe removed. A 5 mm flat-head screwdriver is required.

Remove the pump box cover as follows:

1. Turn off power and disconnect the power supply cord.

2. Loosen the four retaining screws and remove the front cover from the pumpbox.

3. Loosen the earth wire on the cover.

4. When re-attaching the cover, remember to fasten the earth wire.

Figure 77. Pump box retaining screws.

Screws, two oneach side.


Replacing fusesThe fuses are located on one side of the connection box. Replace the fuses asfollows:

1. To open a fuse holder, press the cap and rotate it ¼ turn counter-clockwise.Pull out the cap with the fuse, see below.

2. Replace the fuses with the same type and rating:

• Fuse F1: T6.3AL, 250 V

• Fuse F2: T6.3AL, 250 V

• Fuse F3: T10AL, 250 V

3. Re-insert the cap with the new fuse into the fuse holder. Turn the cap ¼ turnclockwise to lock the fuse holder.

Figure 78. Interior of pump box with transformer and connection box.

Figure 79. Connection box with fuse holders.

Resetting automatic fuseThe transformer is equipped with an automatic fuse (1.8 A) which may release ifthe transformer is temporarily overloaded. To reset the automatic fuse, press thebutton near the cable inlet on the transformer, see the first figure above.

Transformer

Automaticfuse

Connection boxwith fuses


Replacing the impellerYou need the following tools and parts to replace the impeller:

• Wrench, 8 mm,

• Cotton cloth,

• Water or ethanol for cleaning,

• Impeller.

Replace the impeller as follows:

1. Loosen the four end cover screws on the pump and remove the end cover.

2. Pull out the impeller.

3. Clean the surfaces of the pump body, the end cover and the end cover seal(O-ring).

4. Insert a new impeller: carefully press it onto the motor shaft.

5. Insert the end cover seal.

6. Mount the end cover and fasten the retaining screws.

Figure 80. Replacing the pump impeller.



Replacing the electrical control unitYou need the following tools:

• open-end wrench size 17,

• open-end wrench size 10,

• hex wrench size 6,

• hex wrench size 5,

• hex wrench size 4.

Replace the control unit as follows:

1. Remove the phantom from the lift table. Move the platform to a height ofapprox. 10 cm above the lowest position.

Note: It is possible to leave the levelling frame mounted. However, thefollowing pictures show the lift table without levelling frame since thispermits better recognition of the screws.

2. Open and remove the four screws on the blue resting plate. Open-endwrench size 17.

Figure 81. Screws on the resting plate.


3. Remove the blue resting plate from the top of the telescope mechanism.

Figure 82. Removing the resting plate.

4. Open and remove the 6 screws on the bottom side of the cabinet. They arescrewed into the cabinet from below. Hex wrench size 5 for the screws,open-end wrench size 10 for the nuts.

Figure 83. Screws on the bottom of the cabinet.


5. Loosen (but do not remove) the screws which fix the metal handle. Hexwrench size 6.

Figure 84. Screws of the metal handle.

6. Lift the cabinet upwards and let it rest on top of the telescope mechanism.This allows to access the electrical control unit.

Figure 85. Lift up the cabinet.

Electricalcontrol unit


7. Open and remove the screws which fix the control unit on the lift table'sbottom frame. Hex wrench size 4.

Figure 86. Remove locking screws of electrical control unit.

8. Release the round connectors by turning them about 10 degreescounterclockwise, and pull them out. Release the rectangular connectors bycarefully spread the brackets and pull them out. The following figureexplains which connector belongs to which socket.

Figure 87. Electrical control unit: cable connection.

To mount the spare electrical control unit and to re-assemble the table, follow theabove steps in reverse order while tightening the indicated screws instead ofopening them.

Cables from telescopedrive motor. It doesn'tmatter which of the twocables is connected tosocket 1 and whichone to socket 3.

Socket 2 is not used.

Cable from hand control.9 pin D-sub.

Power cord.


Blue Phantom Manual [DWA000 90001 02] Specifications • 109

Specifications

GeneralThis chapter lists the equipment included with the standard Blue Phantom , aswell as optional accessories. It also summarises technical data for the equipment.

Standard EquipmentThe table below lists all items that are delivered with a Blue Phantom.

Quantity Item1 3-D Water Servo1 Hand Control1 Filling tube1 Transport Locking (keep for future transport!)1 Dust cover1 Holder for field detector1 set Holder for reference detector1 Main Control Unit (CU500E)1 Power supply cord1 Serial cable for connection to PC, 1.5 m1 9-to-25-pin serial adapter1 Drive Control Cable, 18 m1 Blue Phantom Manual1 Packing List

Table 3. Delivered items, Blue Phantom system.

The standard items and all additional items according to the purchase order arestated on the packing list coming with the phantom.

110 • Specifications [DWA000 90001 02] Blue Phantom Manual

AccessoriesOrder number ItemLifting Carriages + TMR989-310 AquaLift water reservoir and lifting carriage (requires

Draining pipe)M5001400 Draining Pipe for AquaLiftHA03-000 Electrical lift table, 230V, for 115V order HA03-010HA01-000 Mechanical lift tableHA05-000 Water reservoir with bi-directional pump, 230V, for 115V

HA05-010SA01-xxx TPR / TMR measurement set in combination with -001 -HA05-xxx for use with Siemens Linac -002 -HA05-xxx for use with Elekta Linac -003 -HA05-xxx for use with Varian Linac -401 -AquaLift for use with Siemens Linac -402 -AquaLift for use with Elekta Linac -403 -AquaLift for use with Varian LinacIn-Air ScannerSA07-000 Headscanner HSC 1D (adapter for linac neccessary)SA08-000 Headscanner HSC 2D (adapter for linac neccessary)SA12-00x Adapter for attachment of headscanner HSCAN1 and

HSCAN2 to Linac incl. reference chamber holder -001 Adapter to Siemens Linac -002 Adapter to Elekta Linac -003 Adapter to Varian LinacSA91-000 Acrylic build-up plate 10 mm for HSC 1D and HSC 2DSA92-000 Acrylic build-up plate 15 mm for HSC 1D and HSC 2DSA93-000 Acrylic build-up plate 20 mm for HSC 1D and HSC 2DSA94-000 Acrylic build-up plate 25 mm for HSC 1D and HSC 2DSA10-000 Acrylic energy wedge for HSC 1D and HSC 2DSA11-000 Reference chamber clamp for accessory holderSA05-000 Table ScannerDetectorsDS20-000 CA24 Chamber Array and MD240 24-channel electrometerDS05-000 CC01 compact cylindrical ionisation chamberDS03-000 CC04 compact cylindrical ionisation chamberDS02-000 CC13 compact cylindrical ionisation chamberDS22-000 CC25 compact cylindrical ionisation chamberPH40-000 Holder for CC ionisation chambersSA61-000 Acrylic build-up cap 13 mm diameter for CC13SA62-000 Acrylic build-up cap 30 mm diameter for CC13SA63-000 Acrylic build-up cap 40 mm diameter for CC13SA64-000 Acrylic build-up cap 50 mm diameter for CC13SA65-000 Acrylic build-up cap 60 mm diameter for CC13SA66-000 Acrylic build-up cap 80 mm diameter for CC13SA67-000 Acrylic build-up cap holder for Blue PhantomPS10-000 Set of brass alloy build-up caps for CC13DS30-000 PPC05 parallel plate ionisation chamberPH41-000 Holder for PPC05 ionisation chamberDS31-000 PPC40 parallel plate ionisation chamberPH42-000 Holder for PPC40 ionisation chamber953-000 NACP parallel plate ionisation chamber, adapter neededPH43-000 Holder for NACP ionisation chamber953-096 BNC/Banana-TNC adapter for NACP chamberDS04-000 FC65-G Farmer type ionisation chamber


DS24-000 FC65-P Farmer type ionisation chamberDS23-000 FC23-C Farmer type ionisation chamberPH44-000 Holder for FC ionisation chambersSA69-000 Acrylic build-up cap 30 mm diameter for FC65SA70-000 Acrylic build-up cap 40 mm diameter for FC65SA71-000 Acrylic build-up cap 50 mm diameter for FC65SA72-000 Acrylic build-up cap 60 mm diameter for FC65999-602 T EFD, 3G-pSi Field detector for electrons, TNC999-702 T Hi-pSi 3G Field detector for photons, TNC999-750 T Hi-pSi Stereotactic detector, TNCPH47-000 Holder for Hi-pSi Field detectors and for RK chamber999-802 T Reference detector735491 Set of 5 brass build-ups for 3G-pSi diode and RK-chamber

Table 4. Accessories for the Blue Phantom.

Technical Data

CU500EMains supply 115 V AC or 230 V AC (±15 %)Mains frequency 47 to 63 HzFuses (external) 115 V: 5x20 mm T2/250 IEC 127/2-5

230 V: 5x20 mm T1/250 IEC 127/2-5Fuses (internal) ± 5 V: 5x20 mm T6.3/250 IEC 127/2-5

±15 V: 5x20 mm T1.6/250 IEC 127/2-5±30 V: 5x20 mm T1.6/250 IEC 127/2-5

Power Input 80 VA

Table 5. CU500E power supply.

External input, Field TNC triaxial connectorExternal input, Reference TNC triaxial connectorExternal input, Field BNC coaxial connectorExternal input, Reference BNC coaxial connectorSERIAL comm. connector 25-pin male D-sub (RS 232 C-A)SERIAL comm. connector 25-pin male D-sub (RS 232 C-B)

Table 6. CU500E front panel connectors.

Mains power input 42R connectorDRIVE CONTROL input 37-pin female D-subTRIGGER input/output 15-pin male D-sub

Table 7. CU500E rear panel connectors.

Warm-up time 30 minutesTemperature range +18°C – +25°CRelative humidity 55% – 75% without condensationPressure 500 – 1060 hPa

Table 8. CU500E working conditions.

Temperature range -20°C – +50°CRelative humidity 10% – 90% without condensation


Pressure 500 – 1060 hPa

Table 9. CU500E storage conditions.

Size [mm] 460 x 400 x 160 (L x W x H)Weight 13 kg

Table 10. CU500E dimensions.

Notes:

1. The CU500E is EMC compliant according to EN60601-1-2.

2. The CU500E is factory calibrated. The calibration is valid for 2 years. Thecalibration label can be found on the CU500E's housing. For recalibration,the CU500E must be sent to the factory.


Serial cableUnit CU 500 E PCConnector type 25p 9sPin # 1 cable hood

2 23 34 85 76 47 58 420 6+1

Table 11. Serial cable configuration.

Blue PhantomPhantom material Acrylic plastic (Perspex), 10 mm (bottom 15 mm)Scanning volume 480 x 480 x 410 mm or 480 x 480 x 480 mmWindows (option) Horizontal and vertical, width 30 mm

(details user defined)Weight 45 kg without waterServo range 480 mm, 480 mm, 480 mmMotors Precision DC motorsFeedback High linearity potentiometersSpeed 15.0, 5.13 and 1.75 mm/s (OmniPro-Accept

software)Position accuracy ± 0.5 mm per axisReproducibility ± 0.1 mmOrthogonality ± 0.2°

Table 12. Blue Phantom specifications.

Operating temperature +18°C – +25°CStorage temperature -20°C – +50°CRelative humidity (operating) 55% – 75% without condensationRelative humidity (storage) 10% – 90% without condensation

Table 13. Climatic conditions Blue Phantom.


Accessories

In-air Headscanner HSC 1DServo size [mm] 440 x 370 x 140 (L x W x H)Servo range 270 mmMotors Precision DC motorsFeedback High linearity potentiometersSpeed 15.0, 5.13 and 1.75 mm/s (OmniPro-Accept

software)Position accuracy ± 0.5 mmReproducibility ± 0.1 mm

Table 14. In-air Scanning Servo Specifications.

In-air Headscanner HSC 2DServo size [mm] 500 x 500 x 270 (L x W x H)Servo range 270 mmMotors Precision DC motorsFeedback High linearity potentiometersSpeed 15.0, 5.13 and 1.75 mm/s (OmniPro-Accept

software)Position accuracy ± 0.5 mmReproducibility ± 0.1 mm

Table 15. In-air Scanning Servo Specifications.

AquaLiftLifting range 695 – 1195 mm (above floor)Lifting speed about 15 mm/secondLevelling ± 0.6°Rotation ± 1.5°Horizontal Adjustment ± 25 mmFine-adjustment of height ± 5 mmMains supply 100-120 V AC or 220-240 V AC (±10 %),

50–60 HzPower consumption Max. 950 VAWater flow control 7–22 litres/minutePump and valve control Local and remote, TMR control standardReservoir capacity 215 litres

Table 16. AquaLift specifications.


Electrical Lift TableMaximum load capacity: 250 kgWeight: 116 kgDrive: self-locking telescope drive,

DC motor 24 V / 250 WMains connection: Type 4115: 115 V, 60 Hz

Type 4230: 230 V, 50 HzVertical range: 740 – 1240 mm (above floor)Vertical speed: 13 mm/secondWheels: Two fixed and two steerable rollers with

parking brakesMaximum load on the floor atone roller:

124 kg

Dimensions: Total Length: 840 mmTotal Width: 680 mm

Levelling FrameVertical range for fineadjustment:

20 mm

Horizontal range for fineadjustment:

15 mm

Table plate: 19 mm thickLength/Width: 680 x 680 mm

Table 17. Electrical Lift Table specifications.

Water ReservoirTank volume: Approx. 220 lWeight (empty): 70 kgPump: DC motor 24 V / 250 WPump capacity: 20 l / minuteMains connection: Type 306/1: 230 V, 50 Hz

Type 306/2: 115 V, 60 HzPower rating: Type 306/1: 350 W

Type 306/2: 350 WWheels: Two fixed and two steerable rollers with

parking brakesMaximum load on the floor atone roller:

110 kg

Dimensions: Total Length: 1000 mmTotal Width: 670 mmTotal Height: 870 mm

Table 18. Water Reservoir specifications.


Environmental Conditions (Working)The following environment conditions must be observed:

Temperature Range +10°C - +40°CRelative Humidity 10% - 75% without condensation

Environmental Conditions (Storage)The following environment conditions must be observed:

Temperature Range -20°C - +50°CRelative Humidity 10% - 90% without condensationPressure 500 - 1060 hPa

Store the lift table and the water reservoir in dry and air-conditioned roomsonly!

Table 19. Environmental conditions for Electrical Lift Table and Water Reservoir.

CA24Number of detectors 23Distance between detectors 20 mmVolume per chamber: 0.14 cm3

Chamber wall thickness: 0.4 mmChamber wall material Polyoximethylene, conductive plasticChamber electrode material: Polyoximethylene, conductive plasticCable length: 8 mConnector: 23 pin triaxial push / pull connector

Table 20. CA24 specifications.


MD240Device type: Simultaneous measuring 24-channel-dosimeterPower supply: 85 V to 265 V, 50 / 60 HzPower consumption: 40 VAWarm-up time 30 minutesLeakage current: < 2 x 10-14 AAmbient humidity: 10% to 75% (relative)Ambient temperature: 10 °C to 40 °CElectrical safety: Exceeds IEC 60601-1EMC: VDE 0160/2, IEC 801

NAMUR, VDE 0871/bEN55 022/B

Fuse: 5 x 20 mm T3, 15/250 IEC 127/2-5,surge-proof

No of input channels: 23 + 1Signal inputs: 24 pin triaxial connector for CA24,

triaxial TNC for reference detectorInformation inputs: ID connector for CA24 and CC13,

ID connector for pressure and temp. detectorComputer interface: CAN-Bus (two connectors) 500 kBit/sMax. Length of link cable: 60 mService interface: RS232Baud rate: 9600 to 38400 baudMeasuring principle: 24 simultaneous measuring 20 bit Σ∆-charge

converterSampling time 30 ms to 3 sMeasuring time: 30 ms to several hoursInput range: ±25 pA to ±1.0 µAResolution: 0.5 fA to 50 pADigital resolution: 16 bitBias voltage: ± 800 V in steps of 1 VBias voltage resolution: < 1%Current limit bias voltage: < ± 0,3 mALinearity: < ±0.03% of full scaleGain drift: < ±0.004% / °COffset compensation: automatically in 10 sTransient time: < 1msPrecision of chargemeasurement:

better than ± 0,5%

Long-time drift: < 0,15% / yearInput current for 25%resolution:

± 5x10-12 A

Resolution: 0,05% that is ± 12x10-15 A to ± 0,5x10-9 AMicrocontroller: Motorola 68332Clock frequency: 16 MHzMemory: 256 Kbytes Flash EEPROM

32 Kbytes parallel EEPROM256 Kbytes RAM

Dimensions: 342 x 257 x 140 mmWeight: 8 kg

Table 21. MD240 specifications.


TMR ProbeMeasuring range 400 mm, see belowResolution 0.15 mmLinearity 0.05%Filling/draining speed 5 cm/min

Table 22. TMR Probe specification.

Figure 88. TMR probe dimensions.

Blue Phantom Bottom

40 mm not usable area

60 mm not usable area

400 mmusable range

400(1.025 V)

4400(8.975 V)

2400(5.000 V)

Distance to the bottom:Blue Phantom 48 x 48 x 41 cm3: 45 mmBlue Phantom 48 x 48 x 48 cm3: 110 mm

Blue Phantom Manual [DWA000 90001 02] Appendix A - Complaint report • 119

Appendix A - Complaint report

Reporting complaintsReport all complaints about the Blue Phantom to any representative ofScanditronix-Wellhöfer or directly to:

Wellhöfer Dosimetrie GmbHBahnhofstraße 5D-90592 SchwarzenbruckGermanyPhone: +49 9128 607-0, Fax: +49 9128 607-10mailto: [email protected]

Use the forms enclosed in this appendix. Describe the fault as specifically aspossible. If needed, make more photocopies of the form. If there is no copy ofthe form, make a written report describing the fault as specifically as possible.

120 • Appendix A - Complaint report [DWA000 90001 02] Blue Phantom Manual

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Complaint Report Blue Phantom

Issuing person: Date:

Customer information

Customer name: Contact person:

Address:

Tel: Fax: E-mail:

Product information

Hardware unit: Id /Serial number:

Software version: Id /Serial number:

Description of the complaint

Appendices:

Complaint reported by: Date: Signature:

To be sent to: Wellhöfer Dosimetrie, Bahnhofstraße 5, D-90592 Schwarzenbruck, Germany Fax. no. (49) 9128-607-10








Address:

Tel: Fax: E-mail:

Product information




Appendices:










Address:

Tel: Fax: E-mail:

Product information




Appendices:





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