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EMU Upgrade Report

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

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  1. EMU Upgrade Report Dick Loveless University of Wisconsin 12 October 2012

  2. 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

  3. 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

  4. Chamber production chart Showing production rates for the 1stendcap (31 CSCs)

  5. 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

  6. 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

  7. 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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