status of the detector control systems for the luminosity...
TRANSCRIPT
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Status of the Detector Control Systems forthe Luminosity DetectorPANDA Collaboration Meeting 18/3
Florian FeldbauerRuhr-Universität Bochum - Experimentalphysik I AG
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Current Setup in our Lab
IOCs running on Single Board Computer (SBC)Structure in our lab similar to final PANDA scheme
,1 F. Feldbauer LMD DCS
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High Voltage Power Supply
HV-MAPS need “high voltage”power supply (∼ 60 V)Using ISEG EHS F4 05n-F:
Controlled via CAN bus−500 V; 10 mA per channel16 channels (single channelfloating GND)Current resolution: 50 pARipple 5 mVP−P
Supplying five sensors withone HV channel
Using same EPICS IOC and OPIsas EMC group
,2 F. Feldbauer LMD DCS
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Low Voltage Power Supply
We need:1.8 V for HV-MAPS3.3 V for electronics (LVDS repeater, Multiplexers)
Using Wiener PL506 with MEH-02/07 modules6 channels, 0 – 7 V, 115 A/550 WRemote control via Ethernet (SNMP)Channels can be grouped to increase current output
Using same EPICS IOC and OPIs as EMC group
,3 F. Feldbauer LMD DCS
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Vacuum System
Thin transition foil⇒ Vacuum in Box required
Differential pumping to avoidlarge pressure differencesEquipment
I Edwards nXDS15iI Pfeiffer HiPace300 with
TCP350 controllerI Pfeiffer MPT200, PPT200I Valves from Pfeiffer and VAT
RequirementsI Beam pipe: 1 · 10−9 mbarI Vacuum box: 1 · 10−6 mbar
,4 F. Feldbauer LMD DCS
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Vacuum System
Vacuum system attached to prototype
,5 F. Feldbauer LMD DCS
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Control of Vacuum System
Current statusPumps and Gauges read out via RS485 busEPICS device support: asyn and streama
Electro-pneumatic valves controlled via GPIOs from SBCEPICS device support: devgpiob
ahttps://github.com/epics-modulesbhttps://github.com/ffeldbauer/epics-devgpio
But: Controlling valves/pumps via multi-purpose OS isdangerous
Software might failProcessor might be blocked by other processesValves might be opened/closed by other processes
,6 F. Feldbauer LMD DCS
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Control of Vacuum System
Control vacuum system via “Equipment Protection System” (EPS)⇒ Siemens SIMATIC ET200SP PLC
Connection to EPICS via PROFINET (WIP)1
1Maybe http://epics.web.psi.ch/software/s7plc/
,7 F. Feldbauer LMD DCS
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Cooling
Hubert Unistate 425WCooling power @−20 ◦C : 1.9 WMax pumping speed: 105 l min−1
Max pumping pressure: 2.5 bar (customversion)Remote control via telnet-like TCP/IPand RS-232EPICS Device Support asyn and stream
Temperature regulated on internal bathtemperature (−25 ◦C)
,8 F. Feldbauer LMD DCS
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Temperature Monitoring
Temperature monitoring via THMPModular readout system (s. talk byTobias, “EMC DCS Status”)Using PT100 on holding structuresHV-MAPS have build-in NTC thermistors
⇒ Modification of temperature piggybackboard necessaryUsing same EPICS IOC and OPIs asEMC group
,9 F. Feldbauer LMD DCS
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Summary
What is ready:Power Supplies: HV, LVVacuum System: Pumps, Gauges, ValvesCooling: Chiller, Temperature Sensors (THMP, PT100)
What is missing:PLC for vacuum system (programming)Linear Shift Mechanism: (Motor control, distance sensors)Modification of THMP Temp-PBB for NTC thermistor read-outMuPix configuration
,10 F. Feldbauer LMD DCS