PR-111003-a-JGU, October 9th, 2011 J. Gutleber 1 MedAustron PXI Systems at CERN Johannes Gutleber Roland Moser.

J. Gutleber1

PR-111003-a-JGU, October 9th, 2011

MedAustron PXI Systems at CERN

Johannes GutleberRoland Moser

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Outline

• Overview of the Accelerator• Control System Architecture• Software and Hardware Developments• Integration Column• Summary


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OVERVIEW

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The Project

• Ion-therapy and research centre in Wiener Neustadt, Austria• Proton/ion synchrotron accelerator

• Ion-therapy for cancer treatment• Clinical research and applied research

• Multiple ion sources• p + C for ion therapy• Light ions for research

• 5 beam lines• Experimental: 1 horizontal• Clinical: 1 horizontal, 1 horizontal + 1 vertical, 1 proton gantry


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Principles of Application

Bragg-Peak• Well defined point at which

beam deposits energy• Carbon-Ions have direct

physical effect on tumor cell


Pencil Beam Scanning• Precise deposition of dose• Reduce irradiation time• Improve dose homogeneity• Treat problematic tumors

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MedAustron / CERN

• CERN designs accelerator and the accelerator control system• MedAustron employees stay at CERN since October 2009• A framework agreement with Cosylab was established in April 2010• Department BE hosts the project (BE/OP-MED section)

• Agreements with departments• Various agreements with EN and BE for support on technologies used

has been established with BE-OP

• MedAustron PXI users at CERN• 1 person in control system project (Cesar Torcato de Matos)• 1 person in beam diagnostics project (Anton Kerschbaum)• 2 more possibly to come throughout the year for the injector test

stand in building 184.


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ARCHITECTURE

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Control System Architecture

• Multi-tier architecture• Separation of concerns

• Interfaces between tiers• Identification of functional

components in tiers

• Industry oriented• Modular• Stepwise extensible


Presentation tier (1)

Processing tier (2)

Equipment tier (3)

Frontend tier (4)• Responsibility of accelerator

workpackages

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Rack mountedPC (PCIe)

Design Choices



Processing tier (2)

Equipment tier (3)

Frontend tier (4)

PXIe

Virtual Machines

PLC, controllers,Power converters

Meas.Studio

Inhouse C#

Ethernet, TCP/IP WinCC OA, SRDP

Ethernet, TCP/IP OPC, STM/MAPS, HTTP

Ethernet, TCP/IP

Recommendations forRS 422 & digital IO

OPC, MRF, 8B10B custom

Ethernet,NI SV

http://www.oracle.com/index.html

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Processing tier (2)

Equipment tier (3)

Frontend tier (4)



MeasurementStudio

WinCC OA (PVSS) is the core operating system of the accelerator control system!• Keeps overall system status image• Single entry point into systems• ~ 100 kDPEs on 6 VMs


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MeasurementStudio

Inhouse C#

PXIe platform and LV-RT is the processing platform of tier-3!Light Front-End Control Operating System (FECOS) implemented.Light framework to adapt all devices and processes to tier-2.


Processing tier (2)

Equipment tier (3)

Frontend tier (4)


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DEVELOPMENTS

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Developments

• Front End Controller Operating System (FECOS)• Main timing system• Power Converter Controller• Beam Diagnostics and Instrumentation• Injector LLRF integration (TINE protocol)• Ion Source integration


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FECOS• Object oriented LabView (Real-Time) framework• Uniform and transparent network communication

• WinCC OA integration through OPC/SV server• MedAustron Publisher/Subscriber (MAPS) for high rate data exchange

based on NI Simple TCP Messaging (STM)

• Uniform operation (state machine)• Configuration• Real-time tasks, error handling, remote logging• Runs in tier 3 (equipment tier)


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Main Timing System (REDNet)

• Real-Time Event Distribution Network (REDNet)• Based on Micro Research Finland (MRF) hardware layer

• PXI running, PXIe event receiver cards under development• Drivers and libraries for LV and LV-RT developed

• Event broadcast sequencer• General-purpose “cycle sequence-player” system

• Symmetricom S350 GPS integrated for 100 ns timestamps,1 µsec event granularity10 nsec granularity for synchronizing 2 injection devices

• 50 receivers needed (but scales to several hundreds)• Implemented by Cosylab• In-device response via RT bus or Universal IO modules


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Power Converter Controller


FlexRIO adapters (6 optical SFPs)

RT link(100 kHz)

FPGA-based FED

• All 262 power convertersoperated via NI-FlexRIO based distributed system• High density 8-16 FlexRIOs in 1 chassis (around 70 PCOs per chassis)

• Power converters are • RS-422 serial devices for slow controls

(uniformed interface design for all power converters)• Voltage sources driven via in-house built regulation board (DSP)• Special magnets with optical trigger for setpoints via RS-422

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INTEGRATIONCOLUMNS

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CO Systems in Use Currently• 1 Main Timing Generator

• PXI 1031 4 slot, PXI-8102 dual core, • 1 MRF EVG

• 1 Power Converter Controller• PXI 1042 8 slot, PXI-8110 Core 2 quad core,

4GB RAM, LV-RT• 1 FlexRIO PXI-7954R (Virtex 5, LX110)

and 1 MRF EVR to test PCC• 1 FlexRIO PXI-7952R (Virtex 5, LX50)

• 1 Ion Source Front End Controller• PXI 1042 8 slot, PXI-8109 i7 CPU,

4 GB RAM, LV-RT• 32 DIN, 32 DOUT, 4 serial IO,

M-DAQ card 48 DIO, 32 AIN, 4 AOUT, Profibus card


FlexRIO fiber link protocolFED

MTR

PCC

MTS MTG

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Beam Diagnostics Currently in Use

• 2 PXI-1042 8 slot, PXI-8110 2 GB, LV-RT• PXI 7340 motion control, PXI-6220 DAQ,

MRF event receiver• beam diagnostics development

• Wire-scanner + slits• Profile grid monitor• Faraday cup


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Systems OverviewChassis Quantity Usage Status

PXI 1031 1 Main Timing Generator ExistingPXI 1042 1 Power Converter Controller ExistingPXI-1042 1 Ion Source FEC ExistingPXI 1042 2 Beam Diagnostics Development Existing

PXIe-1075 1 Power Converter Controller OrderedTBD 1 Injector LLRF FEC (Jan. 2012) Planned

PXIe-1075 2 ITS Beam Diagnostics OrderedPXIe-1075 5 PCC (May 2012) PlannedPXIe-1075 11 Beam Diagnostics Planned


• Currently 5 in use, 3 ordered, 1 more in pipeline (9 systems)• 5 more systems for CS until May 2012 (total 13 systems)• Beam diagnostics next bunch early 2012, to be seen how

many to be ordered

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SUMMARY

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Transition from PXI to PXIe

• Currently evaluating with NI best configurations• MRF develops with Cosylab a PXIe event receiver card

• Prototype in december, final product in May 2012

• Evaluation before EoY Windows (8 GB) vs. LV-RT (4 GB)• For all applications except beam diagnostics


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Wish List - Brainstorm

• Shared variable engine performance evaluations and tuning• Maybe common project on publisher/subscriber?

• DIM usage failed due to problems on LV-RT

• Hypervisor evaluation• Tuning of application’s memory tuning• Are you interested in REDNet?• Are you interested in FECOS?


PR-111003-a-JGU, October 9th, 2011 J. Gutleber 1 MedAustron PXI Systems at CERN Johannes Gutleber Roland Moser.

Documents

control system architecture

architecture slide

frontend tier

equipment tier

processing tier

presentation tier

vms slide

overview slide