LHCC Comprehensive Review 26/6/06 D.J.A. Cockerill - RAL 1 Status of the CMS ECAL Endcaps LHCC Comprehensive Review, June 2006 D Cockerill EE EE large mechanics VPTs and Supercrystal assembly Electronics Trigger The “Dee4” project ES ES mechanics Micromodules and readout EE and ES Planning Conclusions
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Status of the CMS ECAL Endcaps LHCC Comprehensive Review, June 2006 D Cockerill
Status of the CMS ECAL Endcaps LHCC Comprehensive Review, June 2006 D Cockerill EE EE large mechanics VPTs and Supercrystal assembly Electronics Trigger The “Dee4” project ES ES mechanics Micromodules and readout EE and ES Planning Conclusions. - PowerPoint PPT Presentation
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Si sensors availableAll ceramics supports and Al tiles producedSmall mod to allow for backplane bonding(follow. ES and Tracker experience)All ASICS available
Problem with hybrids productionFirst large series of PCBs not good ! Immediate action: change PCB manufacturing companyWill probably eat a large part of schedule contingency
Crucial to introduce as much parallel assembly and integration as possible
Quality control at each crucial step
Suggestion to carry out all SC mounting and Dee assembly in bldg 867
This offers many very attractive features- all major activities under one roof- proximity of expert teams- realisation of the EE trigger, from motherboard level to fibre readout level- multiple DAQ test systems, needed for EE QA, available locally- cooling capacity for one entire Dee- LV power
Crystal Palace
Advance preparation of all large mechanics- Dees into OPAL frames- dry assembly tests of Environmental screens- BP cooling installation- Mounting laser monitoring system
Bare micromodule production has startedProblem with hybrid PCB production: change of producer necessary; will try to minimize impact on overall ES schedule
Delay on system motherboards but production should start soon and should be faster than originally envisaged
Important progress in DAQ (software and ES-DCC) and good advances in offline/physics software
“Ready for Installation” dates so far unaffected by delays. Some contingency now exists due to revised V35 schedule but will probably be “eaten” by hybrid delay