1. US CMS Collaboration Meeting, UC Riverside, May 19, 20011 Endcap Muons John Layter US CMS Collaboration Meeting May 19, 2001

2. US CMS Collaboration Meeting, UC Riverside, May 19, 20012 OutlineOutline Muon System Overview CSC Production FAST Sites Electronics Progress Integration and Installation CPA, ETC Plans for the next six months Summary

3. US CMS Collaboration Meeting, UC Riverside, May 19, 20013 CMS Endcap Muon System 360 CSCs, not counting ME1/1 and ME4 144 Large CSCs (3.4x1.5 m 2 ): 72 ME2/2 chambers 72 ME3/2 chambers Small CSCs (1.8x1.1 m 2 ): 72 ME1/2 chambers 72 ME1/3 chambers 20 o CSCs (1.9x1.5 m 2 ): 36 ME2/1 chambers 36 ME3/1 chambers Frontend Electronics: 170K Cathode channels 140K Anode channels Trigger&DAQ (on-chamber part) Alignment&Services

4. US CMS Collaboration Meeting, UC Riverside, May 19, 20014 Endcap Muon System

5. US CMS Collaboration Meeting, UC Riverside, May 19, 20015 EMU - Yearly BCWS FY01 is the second largest year of EMU funding : Production of chambers at Fermilab at nominal rate Purchasing of significant part of FE electronics Finalization of integration and installation design

6. US CMS Collaboration Meeting, UC Riverside, May 19, 20016 EMU Chamber Status Fermilab Site (Panels for 410 CSCs; Assembly of 148 Large CSCs): Panel production since 5/99; 52% of chambers done; on schedule CSC assembly since 6/00; 32/148 large CSCs done; ~2 wks late UF and UC Sites (Final Assembly and System Tests of Large CSCs) First 5 CSCs arrived at UC and UF; long term HV test will start Begin mounting and testing electronics 9/01, ~3 mo. late Delivery of on-chamber electronics is on critical path PNPI Site (114 smaller CSCs) Critical tooling commissioned; 2 chambers assembled PRR—June 7-8; start production in August IHEP Site (148 smaller CSCs) Critical tooling arrived, being commissioned, begin assembly PRR—July 30-31; start production in September

7. US CMS Collaboration Meeting, UC Riverside, May 19, 20017 FNAL Factory Status - Chamber assembly at MP9 32 large CSCs assembled by May 2001 > 20% complete Production ~ at nominal rate ~ On schedule

8. US CMS Collaboration Meeting, UC Riverside, May 19, 20018 Chamber Assembly Gluing Station (anode bars, gap bars are glued to panels) Winding Station (wires are wound directly on panels) Soldering Station (automated soldering of wires) Wire Tension/Spacing Station (tension and spacing of wires are checked) Ionized Air Knife Station (dust is removed from wires and panels) Assembly Station (panels are stacked to make chamber)

9. US CMS Collaboration Meeting, UC Riverside, May 19, 20019 CSCs at UC FAST Site

10. US CMS Collaboration Meeting, UC Riverside, May 19, 200110 CSCs at UC FAST Site

11. US CMS Collaboration Meeting, UC Riverside, May 19, 200111 CSC Production at PNPI Preproduction Prototype (P3) assembled at PNPI

12. US CMS Collaboration Meeting, UC Riverside, May 19, 200112 CSC production at IHEP Critical tooling received Wire Tension measurement machine

13. US CMS Collaboration Meeting, UC Riverside, May 19, 200113 Functions of Electronics Acquire precise muon data for offline analysis Cathode strips: precise azimuthal position (in bending plane) in each layer by interpolation of induced strip charges. Anode wires: precise timing and coarse radial position. Generate primitives for Level 1 trigger Identify Local Charged Track (LCT) segments using cathode and anode signals.

14. US CMS Collaboration Meeting, UC Riverside, May 19, 200114 Electronics System Layout

15. US CMS Collaboration Meeting, UC Riverside, May 19, 200115

16. US CMS Collaboration Meeting, UC Riverside, May 19, 200116 Radiation Tolerance Tests Measure Single Event Upset (SEU) and Total Ionization Dosage (TID) effects with 63 MeV proton beam at UC Davis. Measure effects due to Displacement damage of bipolar and biCMOS with 1MeV neutrons at OSU. Results: Negligible degradation of analog performance due to TID (>10kRad) or displacement (2x10 12 cm -2 neutrons). No latch-ups observed up to p fluence of 2x10 12 cm -2. SEUs in FPGAs observed and cross sections measured. All SEUs recoverable by reloading FPGAs. SEU rate at peak LHC luminosity manageable for CFEB, but higher for ALCT.

17. US CMS Collaboration Meeting, UC Riverside, May 19, 200117 On-chamber Electronics I On-chamber Electronics I Three out of four on-chamber boards designed and tested: Cathode Front End Board (CFEB) Anode Front End Board (AFEB) Low Voltage Distribution Board (LVDB) Most of the components for these boards (excluding rad hard LV-regulators) procured in quantities sufficient to start production Production costs at or below estimates

18. US CMS Collaboration Meeting, UC Riverside, May 19, 200118 On-chamber Electronics II On-chamber Electronics II LV-regulators (CERN design, standard for LHC experiments) are not available. Will define the schedule of production of CFEB and LVDB. On critical path ALCT being redesigned using Xilinx FPGA (faster reloading) to deal with SEU problem. Preproduction boards to be delivered by September 2001. On critical path

19. US CMS Collaboration Meeting, UC Riverside, May 19, 200119 Status of On-chamber Boards

20. US CMS Collaboration Meeting, UC Riverside, May 19, 200120 Off-chamber Electronics Off-chamber Electronics P rogress made on next round of prototype boards and on VME custom backplane. Updated versions of the prototype boards will be delivered to the FAST sites during this summer. These will be used for tests of mass- produced on-chamber electronics assembled with chambers.

21. US CMS Collaboration Meeting, UC Riverside, May 19, 200121 Integration & Installation Infrastructure: Walkways Piping, cooling, cabling Chamber mounting Installation: Fixture Strategy Schedule

22. US CMS Collaboration Meeting, UC Riverside, May 19, 200122

23. US CMS Collaboration Meeting, UC Riverside, May 19, 200123

24. US CMS Collaboration Meeting, UC Riverside, May 19, 200124

25. US CMS Collaboration Meeting, UC Riverside, May 19, 200125 Mounting Detail

26. US CMS Collaboration Meeting, UC Riverside, May 19, 200126 Chamber Mounts

27. US CMS Collaboration Meeting, UC Riverside, May 19, 200127 Mounting Precision

28. US CMS Collaboration Meeting, UC Riverside, May 19, 200128 Integration and installation design EMU integration design advanced (mechanical, gas, cooling, power) Installation procedures being defined Installation fixture fully designed and built

29. US CMS Collaboration Meeting, UC Riverside, May 19, 200129 CSC installation fixture Counterweight movement keeps balance w/ or w/o chamber Chamber can rotate at any angle Counterweight

30. US CMS Collaboration Meeting, UC Riverside, May 19, 200130

31. US CMS Collaboration Meeting, UC Riverside, May 19, 200131 Chamber Production and Installation Schedule (V31) CMS Schedule V31: Installation of all CSCs on the surface at SX5, beginning in 2002. Very tight, advanced by ~1 year compared to V30. Pressure on production and installation rate.

32. US CMS Collaboration Meeting, UC Riverside, May 19, 200132 EMU Critical Path Analysis - I FY01: Delivery of on-chamber electronics is on the critical path: ALCT Board redesign and start of production Rad Hard Voltage regulators:  CFEB, LVDB production FY02: CSC assembly at FAST sites and installation at CERN is on the critical path

33. US CMS Collaboration Meeting, UC Riverside, May 19, 200133 EMU Critical Path Analysis - II FY03: CSC Installation (station ME3) is on the critical path: short installation window (two shifts necessary) FY04: CSC Installation (station ME1) is on the critical path: RPCs must be installed before CSCs HE, EE, SE, ME1/1 cables should be installed before CSCs Short installation windows (two shifts) Available Slack analysis: ~25-30 working days in 2002. Very tight in 2003 –2004. Need two shifts for production at IHEP and ME1/2,3 installation

34. US CMS Collaboration Meeting, UC Riverside, May 19, 200134 EMU – Estimate to Complete EMU Estimate to Complete: 18.9 Actual Year M$ Dominated by M&S (mostly electronics)

35. US CMS Collaboration Meeting, UC Riverside, May 19, 200135 Plans for the Next 6 Months Continue CSC production at Fermilab. Start production at PNPI and IHEP. Continue FE electronics production. Start electronics assembly and begin chamber tests at FAST sites. Complete integration drawings for all chamber types. Begin preparations for receiving and installing chambers at CERN.

36. US CMS Collaboration Meeting, UC Riverside, May 19, 200136 SummarySummary Nominal rate of chamber production at FNAL achieved. Chamber production on schedule. FE electronics production started; first cost experience positive. LV-regulators and trigger boards on the critical path; defines beginning of assembly at FAST sites. Endcap infrastructure designed; installation fixture exists. Adequate base program support is critical to maintain the schedule.