1. UK CMS Oversight Committee Mtg 23.5.2008
The CMS ECAL Endcaps
UK Responsibilities
Procurement and testing of VPTs
Design and procurement of the VPT HV system
Design/procurement of the mechanical structures
Electronics systems integration
SC and Dee assembly
Test beam appraisal and analysis
UK CMS Oversight Committee Mtg

2. UK CMS Oversight Committee Mtg 23.5.2008
EE front end readout
VPTs SC HV cards Umbilical cables
EE Motherboards All delivered EE VFE cards EE FE cards Polyethylene moderator
UK CMS Oversight Committee Mtg

3. Naked SC assembly rates
16/wk
‘Naked’ SC assembly
All VPTs and crystals glued
All SCs completed (Monday of this week!)
Nov OsC
Naked SC assembly rate, per week
UK CMS Oversight Committee Mtg

4. UK CMS Oversight Committee Mtg 23.5.2008
SC assembly
Plot: Crystal delivery Naked SC assembly HV tested SCs
- All SCs HV tested and ready or mounted on Dees
Nov OsC
UK CMS Oversight Committee Mtg

5. Dee assembly – SC mounting
23 May 08
1 Dee
SC mounting
Dees 1-3 SC mounting completed
Dee4 completed by today,
1 Quad
Nov OsC
UK CMS Oversight Committee Mtg

6. Super unit to be welded together
Power cooling
Super unit to be welded together
Power cooling
2 of the 8 versions of ‘super cooling units’ needed per Dee
Each is a fully welded and tested system
The last 2 (of 32) have been completed this week and are undergoing pressure/leak tests
Transfer frame
A fully welded column of 2 cooling blocks
UK CMS Oversight Committee Mtg

7. UK CMS Oversight Committee Mtg 23.5.2008
Dee4
Dee4
As of Thursday, 9 left to mount
Expect mounting to be completed by Fri
UK CMS Oversight Committee Mtg

8. UK CMS Oversight Committee Mtg 23.5.2008
Dee3  
Dee3
HV looming completed
Moderator mounted
Stability fibres and LV mounted
Trigger mapping into readout motherboards completed (this photo)
UK CMS Oversight Committee Mtg

9. OPAL transfer frame to point 5
Dee2
OPAL transfer frame to point 5
Dee2 with its complete set of SCs
Dee2 All super cooling units mounted Installation of VFE and FE cards underway
UK CMS Oversight Committee Mtg

10. UK CMS Oversight Committee Mtg 23.5.2008
Dee1  
Dee1 All electronics in place All towers tested and working
Dee1 Fibre optic readout support panels in place, ready for final fibre optic routing
UK CMS Oversight Committee Mtg

11. Dee Assembly and Integration Status, 22.5.2008
Dees 1–3 All channels checked and OK for signal continuity Dee Single tower readout – pedestal width on all channels ~2ADC counts in line with expectations for electronics noise of electrons per channel
UK CMS Oversight Committee Mtg

12. UK CMS Oversight Committee Mtg 23.5.2008
EE Risks
Insufficient ECAL effort (ED/ID)
Continually monitored
New cooling scheme
At end of production
Electronics integration
Good progress, teams in place
Cable crimps
All replaced, checked at each level
of subsequent integration
Fibre optic routing – possible delays/misrouting
Database ready. Routing on Dee1 commencing
UK CMS Oversight Committee Mtg

13. UK CMS Oversight Committee Mtg 23.5.2008
EE Risks (cont’d)
Installation and commissioning at point 5
ECAL installation and commissioning led by K Bell (RAL) Brings full experience from the mounting of the 36 supermodules for the barrel ECAL
Point 5 installation and commissioning team established
Team involves CERN CMS (point 5) and CERN ECAL engineers and technicians and a dedicated ECAL DAQ team
Weekly meetings
Detailed installation sequence in place, from surface of point 5 to mounting on HE
Commissioning will be carried out in sectors with close feedback from the DAQ/DQM teams
UK CMS Oversight Committee Mtg

14. UK CMS Oversight Committee Mtg 23.5.2008
Planning for EE
Dee1 and Dee2 at point 5, r.f.i. by 16 June 2008 Dee3 and Dee4 at point 5, r.f.i. by 21 July 2008
UK CMS Oversight Committee Mtg

15. UK CMS Oversight Committee Mtg 23.5.2008
Conclusions
SC assembly and mounting on Dees (nearly) completed
Good progress with the installation of electronics and services on Dees 1-3
Dee1 and Dee2 to point 5 by 16 June
Dee3 and Dee4 to point 5 by 21 July
UK CMS Oversight Committee Mtg

16. UK CMS Oversight Committee Mtg 23.5.2008
Other info
UK CMS Oversight Committee Mtg