HCAL Fall meeting Oct 11 to 13, 2004 HF assembly, commissioning and integration Ianos schmidt The University of Iowa.

HF assembly, commissioning and integration

Ianos schmidtThe University of Iowa

HF, TOTEM, and CASTOR

Castor table

HF “metallic structures”

HF table

CASTOR

TOTEM T2

TOTEM platformHF Outer shielding

HF racks

CASTOR racks

HF readout boxes

HF shielding plug

HF Cables and services

•Nearly all of the HF specific cables and services have been defined.

• Lengths of cables from the cable chain to the HF racks are relatively short so no patch panels near the cable chains have been foreseen for HF specific cables.

•Cable definitions and cross-sections have been provided to the integration group for specification of the flexible cable chains.

Cables and services to cable chain

* Small flexible cable chains are needed between the HF table and the metallic structures to allow for opening of the HF.

Cables and services within the HF shielding

Cables toUpper rack

SourceTube conduits

Cables toLower rack

HF outer shielding

Readout boxes

Cables and services from the readout boxes and HF wedges are routed along the inner surface of the outer shielding. Upper and lower ports are provided in the shielding for cables that go to the upper and lower electronics racks respectively. A central port is also provided to allow passage of the source tube conduits to the source drivers located outside the shielding.

*It may be possible to produce cable harnesses that can be installed as a complete units, allowing production to go in parallel with other activities.

Cables and services within the HF shielding cont.

HF readout box

Cable cross section

HF outer shielding

Cables and services will be supported within the shielding by braces spaced at ~10 degree intervals.

Cable brace

Cable braces

Front end cable storage

The length of the front end cables is fixed at 5 meters to minimize the effects of reflections in the cables. Because of this provisions must be made for storage of the excess cable length outside of the shielding.

8 Cables/readout box x18 boxes on each side of each HF=144 cables on each side of each HF

Must store approximately 500 meters of cable on each side of HF.

Source tubes and drivers

Each wedge contains 31 source tubes. The plastic tubing is contained within flexible metal conduits.

Source driver(2 positions)

Source conduits

Source tubeConduit port

Source drivers are located under the floor of the upper level metallic structures. A rotating table is foreseen to support the drivers allowing them to be moved into a position where they can be accessed through a hatch in the floor.

HF cable chain specificationHF Cable chain services, Jan 23, 2004

Services Type Dimension form Dimension (mm) Linear Dim. (mm) Area (cm2) Bending R (mm) Comments

PMT HV (Rack 1) Red HV, 20 conductor Diameter 15 15 1.77 180 (12*15)PMT HV (Rack 2) Red HV, 20 conductor Diameter 15 15 1.77 180 (12*15)PMT HV (Rack 3) Red HV, 20 conductor Diameter 15 15 1.77 180 (12*15)PMT HV (Rack 4) Red HV, 20 conductor Diameter 15 15 1.77 180 (12*15)

TTC optic fiber(Rack 1) Tight buffered, 8 fiber Diameter 8 8 0.50TTC optic fiber(Rack 2) Tight buffered, 8 fiber Diameter 8 8 0.50TTC optic fiber(Rack 3) Tight buffered, 8 fiber Diameter 8 8 0.50TTC optic fiber(Rack 4) Tight buffered, 8 fiber Diameter 8 8 0.50

Optic link, rack1, crate 1 Duplex ribbon, 16 fiber area 8.2 x 2.2 8.2 0.18 51Optic link, rack1, crate 1,2 Duplex ribbon, 16 fiber area 8.2 x 2.2 8.2 0.18 51Optic link, rack1, crate 2 Duplex ribbon, 16 fiber area 8.2 x 2.2 8.2 0.18 51Optic link, rack1, crate 3 Duplex ribbon, 16 fiber area 8.2 x 2.2 8.2 0.18 51Optic link, rack1, crate 3,cal Duplex ribbon, 16 fiber area 8.2 x 2.2 8.2 0.18 51

Optic link, rack2, crate 1 Duplex ribbon, 16 fiber area 8.2 x 2.2 8.2 0.18 51Optic link, rack2, crate 1,2 Duplex ribbon, 16 fiber area 8.2 x 2.2 8.2 0.18 51Optic link, rack2, crate 2 Duplex ribbon, 16 fiber area 8.2 x 2.2 8.2 0.18 51Optic link, rack2, crate 3 Duplex ribbon, 16 fiber area 8.2 x 2.2 8.2 0.18 51Optic link, rack2, crate 3,cal Duplex ribbon, 16 fiber area 8.2 x 2.2 8.2 0.18 51

Optic link, rack3, crate 1 Duplex ribbon, 16 fiber area 8.2 x 2.2 8.2 0.18 51Optic link, rack3, crate 1,2 Duplex ribbon, 16 fiber area 8.2 x 2.2 8.2 0.18 51Optic link, rack3, crate 2 Duplex ribbon, 16 fiber area 8.2 x 2.2 8.2 0.18 51Optic link, rack3, crate 3 Duplex ribbon, 16 fiber area 8.2 x 2.2 8.2 0.18 51Optic link, rack3, crate 3,cal Duplex ribbon, 16 fiber area 8.2 x 2.2 8.2 0.18 51

Optic link, rack4, crate 1 Duplex ribbon, 16 fiber area 8.2 x 2.2 8.2 0.18 51Optic link, rack4, crate 1,2 Duplex ribbon, 16 fiber area 8.2 x 2.2 8.2 0.18 51Optic link, rack4, crate 2 Duplex ribbon, 16 fiber area 8.2 x 2.2 8.2 0.18 51Optic link, rack4, crate 3 Duplex ribbon, 16 fiber area 8.2 x 2.2 8.2 0.18 51Optic link, rack4, crate 3,cal Duplex ribbon, 16 fiber area 8.2 x 2.2 8.2 0.18 51

Electric source driver (left) Shielded, 18 conductor Diameter 12.5 12.5 1.23 150 (12*12.5)Electric source driver (right) Shielded, 18 conductor Diameter 12.5 12.5 1.23 150 (12*12.5)

Crate DCS RS-422 (right) 4 twisted pairs Diameter 7.5 7.5 0.44 75.00Crate DCS RS-422 (Left) 4 twisted pairs Diameter 7.5 7.5 0.44 75.00

Laser quartz fiber (calib.) Armored/in tube Diameter 5 5 0.20Laser quartz fiber (RDmon.) Armored/in tube Diameter 5 5 0.20

Radiation monitor (left) HV coax Diameter 6 6 0.18 60.00Radiation monitor(left) calib. HV coax Diameter 6 6 0.18 60.00Radiation monitor (right) HV coax Diameter 6 6 0.18 60.00Radiation monitor(right) calib. HV coax Diameter 6 6 0.18 60.00

Neutron monitor, quadrant 1 HV coax Diameter 6 6 0.18 60.00Neutron monitor, quadrant 2 HV coax Diameter 6 6 0.18 60.00Neutron monitor, quadrant 3 HV coax Diameter 6 6 0.18 60.00Neutron monitor, quadrant 4 HV coax Diameter 6 6 0.18 60.00

The following items have not yet been defined. Diameters are only a rough estimate of what w ill be needed.Nitrogen Flexible hose Diameter 15 15 1.77 Place holder, needs to be defined

3 phase, 400Hz power Power cable Diameter 28 28 6.16 Place holder, needs to be defined50Hz power power cable Diameter 28 28 6.16 Place holder, needs to be defined

Water inlet Flexible hose Diameter 30 30 7.07 Place holder, needs to be definedWater outlet Flexible hose Diameter 30 30 7.07 Place holder, needs to be defined

LV power supply DCS (rack1) Network cable? Diameter 8 8 0.50 Place holder, needs to be definedLV power supply DCS (rack2) Network cable? Diameter 8 8 0.50 Place holder, needs to be definedLV power supply DCS (rack3) Network cable? Diameter 8 8 0.50 Place holder, needs to be definedLV power supply DCS (rack4) Network cable? Diameter 8 8 0.50 Place holder, needs to be defined

Rack protection DCS (rack 1) Network cable? Diameter 8 8 0.50 Place holder, needs to be defined

From S.Bally’s database

Telephone and computer network cables need to be added to the cable chain specification

HF cable statusHF cable status

Cable type Type Connectors Tested for Lenghts Purchased Assembled tested Approved installeddefined defined IS-41/23 defined

complienceOn-detector cablesFront end cables YES YES YES YES YES YES YES NO NOHV cables (DIST box to ROB's) YES YES ? NO YES NO NO NO NOLaser fibers(LDB's to ROB's) YES YES YES NO NO? NO NO NO NODigital optic links ("trigger") YES YES YES NO NO NO NO NO NOTTC optic links YES YES YES NO NO NO NO NO NOLow voltage YES YES YES NO YES NO NO NO NORad monitors (type 1) YES* YES* YES* YES* YES* YES* YES* NO YES*Source tubes YES YES Need Derogation YES YES 25% NO NO NOGas tubing NO NO NO NO NO NO NO NO NO

UXC to USC cablesHV cables (USC to UXC) YES YES ? NO YES NO NO NO NOLaser fibers(USC to UXC) YES? YES YES NO NO NO NO NO NODigital optic links ("trigger") YES YES YES NO NO NO NO NO NOTTC optic links YES YES YES NO NO NO NO NO NOSource driver YES* YES YES* NO NO NO NO NO NODCS for front end crates YES* YES YES* NO NO NO NO NO NOAC/DC converter monitoring DCS NO? NO? NO NO NO NO NO NO NORad monitors (type 1) YES* YES* YES* NO NO NO NO NO NORad monitors (type 2) YES* YES* YES* NO NO NO NO NO NONeutron monitors YES* YES* YES* NO NO NO NO NO NO

Undefined cables and services50Hz power400Hz powerAC/DC converter control DCSRack protection DCSTable controlsSniffersGas tubingCooling water

* = CERN stores item

?

Many of these items can potentially be shared between sub-detectors

HF Rack cooling requirementsTurbine

FE electronics crate

FE electronics crate

FE electronics crate

DCS RS/RS hub

300W

~10W

150W *

150W *

150W *

TOTAL per rack 760WX4 racks/HF =3040WX2 HF’s =6080W for all HF

AC to DC converter (water cooled)May be placed inside rack

Total heat load is safely below the approximate 1kW limit imposed by the use of a single heat exchanger .(Heat exchanger is to be moved to top of rack)*Prototype FE crate measured to be ~85W. (Safety factor of about 50%)

34U rack

HF gas requirementsDate: Wed, 10 Mar 2004 11:59:10 +0100 (CET)From: Dragoslav-Laza Lazic <[email protected]>To: Christoph Schaefer <[email protected]>

3) HF has photomultiplier based readout. HV discharge danger andhelium leaks are points of concern. In addition, the HF absorber ismade of iron and requires relatively dry atmosphere (less than 20%humidity at room temperature) in order to minimize deterioration due tooxidation. The readout boxes of HF have been made so that they enable flowof nitrogen from the photomultiplier tubes into the absorber. Testshave shown that a satisfactory levels of oxygen content and relativehumidity can be achieved with flows of ~5 l/hr*HF wedge. Given that there are 36 HF wedges it amounts to the total requirement of 180 l/hr.

N.B. This is considered to be a necessary condition, it may be possiblethat a safety factor of two for HF nitrogen inerting has to beimplemented in case the humidity control of the UXC proves to beinadequate, especially in the early days while the concrete is not fully dried.

=360 l/hr

HF Gas distribution system needs to be designed!

To do (draft)

• Installation of metallic structures

• Delivery of HF racks

• Installation of electrical infrastructure (50Hz and 500Hz)

• Installation of cable trays and cabling infrastructure (ie. Patch panels…)

• Installation of cooling and gas services

• Installation of table actuator systems

• Installation of HF specific cables and services

• Installation of TOTEM specific cables and services

• Installation of CASTOR specific cables and services

• Cabling of UXC cable chains

• Final cabling of each sub-detector in UXC

HF cabling and integration workshop Sept.`04

1. TOTEM and CASTOR. General parameters are fixed so more detaileddesign work can proceed. It is not clear if there is sufficientsupport for CASTOR.

2.) There was extensive discussion about the tender for the HF cablechain. There have been two acceptable bids, but each does not quite meetall of the requirements. Plan to invite vendors to CERN to clarify details.

2b.) Many ideas were raised about locations of patch panels (CASTOR,TOTEM)and fixation of the cable chains to the HF platforms. Design of the cablechain attachment and the CASTOR patch panels is of high priority to avoidconflict with the cable chain installation schedule.•No work has happened on this since the workshop!

3.) HF racks had not been ordered. Apparently they were waiting for usto give the final word. the green light to order the racks was given, and racks areexpected this month. The proposed rack layout is acceptable, except that the heat exchanger should be moved from the bottom to the top of the rack.

What was discussed:

3b.) It is possible that the HCAL AC to DC converters will be placed withinthe HF racks. The cooling requirements (water) for these supplies need tobe specified.• This info has been provided by Serguei Lusin.

4.) Orders for the HF metallic structures have just gone out. Date ofarrival at CERN is not yet known. It is believed to be sometime beforethe end of the year.• Now expect arrival in December.

5.) The design efforts for cable trays is a shared effort between thesub-detector groups and Jean Claude (Alain’s group). Generally there was a preference towait until the arrival of the metallic structures before starting thiseffort. For the HF HV cable I will make a proposal for routing andprovide a sub-set of "intermediate" lengths so that cable production canstart. With this plan we hope have some HV cables in hand after themetallic structures are installed so that lengths can be verified.

6.) The need to store ~500 meters of HF front end cable outside of the HFshielding was raised. The cable storage will again be assessed afterinstallation of the metallic structures.

7.) Poly intended to cover the exterior of the HF outer shielding willcome at a later date only if it is determined to be necessary. The cabletrays etc. should be designed with this possibility in mind.

8.) The Gas distribution system on HF is the responsibility of HF. Gaswill be provided to the HF but we must provide the design for flowregulators, manifolds, etc. (at the moment there is no person in HCAL todo this work).

9.) The HF garages in the UXC will be equipped with 50Hz power and lights.All other HF specific services will be part of the HF cable chain. Weneed to add telephone and network cables to our HF cable requirements.

10.) A list of "undefined" services was discussed and responsiblegroups/people we identified to make sure all bases were covered.

HF specific integration issue summary

•Cable trays and cable routing on the HF metallic structures need to be defined so that cable lengths can be determined. This is holding up cable orders and production.

• Definition of cable storage space and support.

• Checking of source driver support, access, and tubing conduit fixation

• Placement of AC/DC converters.

•Final design of the cable trays and chains that go from the main cable chain to the HF racks. *

•Design of the systems related each of the undefined services (CERN responsibility).

* The lengths of the HF trigger readout fibers are critical, so a check must be made to see if the trigger cables do not need an alternative path to keep within the latency budget. This may require designing an alternative path for these cables within the interface between the castor and HF tables.

HCAL Group specific activities (rough draft)

*Very rough estimates of time required(-0,+50%)

• *Cable production and installation prep. TBD• *light guide production In progress, Likely completed by end of year.• * installation of gas distribution system (HCAL?) TBD• Installation of light guides and readout boxes ~2 FTE weeks/HF(split b/t two people)• Cabling of inner shielding ~4 FTE weeks/HF• Populating racks and cabling electronics ~2 FTE weeks/HF• Installation of source drivers and connection of tubes ~2 FTE weeks/HF• Installation of remaining HF specific items

(rad monitors …) ~1 FTE week/HF• Calibration and testing ~3 FTE weeks/HF• Electronics burn in (can be done in UXC)