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Dick Loveless Upgrade report 12 Oct 20121 EMU Upgrade Report Dick Loveless University of Wisconsin 12 October 2012
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Dick Loveless Upgrade report 12 Oct 20122 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 211212213216214215217218 21 9 22 0
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Dick Loveless Upgrade report 12 Oct 20123 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
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Dick Loveless Upgrade report 12 Oct 20124 Chamber production chart Showing production rates for the 1 st endcap (31 CSCs)
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Dick Loveless Upgrade report 12 Oct 20125 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
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Dick Loveless Upgrade report 12 Oct 20126 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
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Dick Loveless Upgrade report 12 Oct 20127 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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