a flash-adc for each strip with digital storage replace electronics on highest rate chambers
DESCRIPTION
SLHC CSC Electronics Upgrade Spearheaded by OSU CMS Group. A flash-ADC for each strip with digital storage Replace electronics on Highest Rate Chambers Deadtimeless. ME1/1 Electronics Upgrade 504 DCFEBs OSU 72 DMBs NE,UCSB 72 TMB (d.c.) TAMU,UCLA - PowerPoint PPT PresentationTRANSCRIPT
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•A flash-ADC for each strip with digital storage•Replace electronics on Highest Rate Chambers•Deadtimeless
SLHC CSC Electronics Upgrade Spearheaded by OSU CMS Group
ME1/1 Electronics Upgrade 504 DCFEBs OSU 72 DMBs NE,UCSB 72 TMB (d.c.) TAMU,UCLA 8 MPC Rice 72 LVDB (+more power) 72 LVMB1008 Cables (default skewclear)
1st prototype Nov 2010
Analog-digital 18 layer board
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The rest are slides from
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SLHC Upgrade R&D
Two Concerns about highest rate ME1/1 Chambers 1) CSC Trigger questionable for >2.1 - for rate split strips in half - for $$$ ganged strips 4 strip modulo 4 2) At SLHC Rates conservative estimate shows SCA overuse in ME1/1 at 10%! - neutron background not well known
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Replace Conventional ADC and SCA storage with Flash ADC and Digital Storage• New System Deadtimeless, Removes rate worries• Similar cost to old system Fairly Radical Idea – Couldn’t build 8 Years Ago
Digital CFEB – A Nice Idea for the SLHC
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ME1/1 Electronics Upgrade 504 DCFEBs OSU 72 DMBs NE,UCSB 72 TMB (d.c.) TAMU,UCLA 8 MPC Rice 72 LVDB (+more power) 72 LVMB1008 Cables (default skewclear)
Overall Scope of Upgrade
Left over boards ME4/2 upgrate
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Flash DCFEB R&D Board Status
A complex board (18 layers) Analog-Digital
Ben Bysma (0.5 FTE) -Schematics complete end of August -Board Layout underway -Board Production October - Results Early November We intend to instrumented a chamber with new electronics during the 7TeV14TeV LHC shutdown
Replace ME1/1 board will beused for ME4/2 upgrade chambers