stt rack space needs
DESCRIPTION
STT rack space needs. educated guess of STT requirements. TC is asking for. a) How many U rack space do you need at the detector? b) How many U rack space do you need in the supply level (E10) and the DAQ/readout level (E20) of the counting house? - PowerPoint PPT PresentationTRANSCRIPT
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STT rack space needseducated guess of STT
requirements
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TC is asking fora) How many U rack space do you need at the detector?
b) How many U rack space do you need in the supply level (E10) and the DAQ/readout level (E20) of the counting house?
c) Do you need any equipment close to the detector in non-standard (non-rack) housings? At which minimal distance to your detector and with which dimensions?
The dead line to provide info is next TB in Bochum
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STT numbers
xy-view
4636 Straw tubes arranged in planar layers (24-27)
Time readout (isochrone radius) drift time ~ 200 ns (B=2T) req. electronic resolution < 1 ns sensitivity (threshold) ~ 2 fC
Amplitude readout (energy loss) Straw tube capacitance: ~ 10-15 pF (9 pF/m) impedance: 373 Ώ inductance:1.24 μH/m Gas volume: ~ 1040 l mixture 90Ar + 10CO2
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Readout scheme
FE
DB
FEE anlog: • Preamp+ Shaper+ BLR + Discriminator Analog output needed for dE/dx measurement?
Digital Boards: • Multihit TDC: Time measurement + TimeOverThreshold
(TOT) for charge measurement OR/AND analog signal processing via FADC
• Zero suppression & Hit detection. Slow /Run/Data flow control
Data Concentration : • gathering and sorting of hits marked by time stamps in
epoques (i.e 500 s bunch)
• nGbit/s Optical serial link
Located on the STT
Located on racks outside
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FEE BoardsTentative layout of FEE boards.Total # 592 includes some spare channel.
Cooling is not yet excluded.
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Digital+Concentration Boards
5x Lattice ECP3 150 FPGAs • 4 edge devices up to 60 TDC ch• 1 central for control • Flash ROMs for each
• 4x 208pin QMS connectors Small Addons
• 2x80pin connectors Large Addon (i.e. ADC)
24 TRBs will instrument all STT
These functions are implemented in TRBv3.
Which kind of Crates? 9U, 6U How many?
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HV system• Based on Wiener Mpod (8U) - universal multi-channel LV/ HV power supply
system- Controller with Ethernet, CANbus, USB interface, and interlock; - Web-ready and TCP/IP communication via SNMP,
OPC server;- LabView software support;- LV and HV modules freely combinable; - High Voltage modules (ISEG) with 8, 16, 32 channels
of from 500V to 10kV, floating or common ground; - Low Voltage floating modules with 8 channels of 10A /
50W max. with 8V, 16V, 30V, 60V ranges- PXI platform from National Instruments as I/O Controller- Embedded controllers with Intel CPUs, hard drive, memory, Ethernet, video, serial, USB, GPIB;- OS support: Windows, LabView Real-time, Linux;- more than 1500 PXI products (Multifun. DAQ, FPGA)
How much space?
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Slow ControlsARM-processors (CPU based on simplified instruction sets) will control different field points (gas/pressure controllers, temp. sensors, etc. )
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DCS and HV systemsRegarding rack space for the DCS and HV System:
- ethernet switch: 1 U- epics gateway server : 2U- NI PXI Crate: 4U- MPOD Bin: 9U________________total: 16U
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Cables and supply lines- The STT readout ASIC will provide LVDS differential outputs. - It will have 8 channels/chip and 2 control lines. Therefore for each chip we will
need a 10 pairs flat cable.Total # of flat cables is 296x2. These cables should be connected to patch-panels locate outside the magnet ~1240mmx1200mmx150mm - For the gas we foresee 24 gas supply lines, 224 gas pipes
(in-/outlet).- We need also 40 HV cables.
- How many control lines for temperature and pressure? - Threshold setting and test pulses for FEE are already included?
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Timeline and Milestones• Prototype/Pre-series testing complete, production
readiness • Mass production• Ready for installation• Ready for beam (commissioning)
20142015-201620172018