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EMU Upgrade Report. Dick Loveless University of Wisconsin. 12 October 2012. ME4/2 Chambers. Chamber f actory is operating reliably Chamber production rate ~1/week Completed 19 chambers (out of 67 needed) Chambers 211 – 218 in 2 month HV test Chambers 219 and 220 in assembly area . 211.

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emu upgrade report
EMU Upgrade Report

Dick Loveless

University of Wisconsin

12 October 2012

me4 2 chambers
ME4/2 Chambers
  • Chamber factory is operating reliably
    • Chamber production rate ~1/week
    • Completed 19 chambers (out of 67 needed)
    • Chambers 211 – 218 in 2 month HV test
    • Chambers 219 and 220 in assembly area

211

212

218

213

214

215

216

217

219

220

final assembly testing
Final Assembly & Testing
  • Final Assembly
    • Add on-chamber electronics and cables
    • Assembly going well - ~1-2 days per chamber
  • Testing
    • All CSCs go through a 2-month HV test (up to 4KV – nominal HV is 3.6 KV)
    • On-chamber electronics tested -- 14 different tests including trigger, gas gain, cosmic ray data
    • Completed 10 chambers – rate limitation is production, not testing
chamber production chart
Chamber production chart

Showing production rates for the 1stendcap (31 CSCs)

me1 1 electronics i
ME1/1 Electronics I
  • ME1/1 Test Stand in B904
    • 7 prototype DCFEBs have been installed & powered
      • Prototype LVDB board working fine
      • Cooling operational
      • Currents high - - roughly 50 amps per CSC
      • On-board temperatures ~30 C (reasonable)
    • Currently reading DCFEBs using copper skewclear cables and old DMB (can only read 5 boards)
    • Reading new TMB boards using optical fibers
me1 1 electronics ii
ME1/1 Electronics II
  • DCFEB boards
    • Most firmware operational - - currently working on the firmware for ODMB to enable data transfer to ODMB
  • FF_EMU ASIC
    • Currently does not work
    • Decision to focus effort on backup solution via Cu
  • ODMB
    • Prototype board exists at CERN, needs firmware
  • TMB
    • Received new firmware enabling full functionality
me1 1 low voltage
ME1/1 Low Voltage
  • Design of LV system finalized
    • ME1/1 prototype test working well
    • Layout of cables & power supplies
    • Junction box prototype under construction
    • 8 Maraton power supplies ordered
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