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ME1/1 Upgrade and Installation Plans V.Perelygin

ME1/1 Upgrade and Installation Plans V.Perelygin. ME1/1 Upgrade: New electronics. On-chamber: DCFEB (7 boards/ CSC) LVDB LVMB ALCT mezz Optical link to P.C. Perifperal Crate: ODMB TMB mezz MPC. ME1/1a Un-ganging in the region 2.1<|η|<2.4. ME1/1a 3-to-1 Connect. Scheme:

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ME1/1 Upgrade and Installation Plans V.Perelygin

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  1. ME1/1 Upgrade and Installation Plans V.Perelygin V.Perelygin CMS Upgrade Week and Workshop Nov. 08-2011

  2. ME1/1 Upgrade: New electronics • On-chamber: • DCFEB (7 boards/ CSC) • LVDB • LVMB • ALCT mezz • Optical link to P.C. • Perifperal Crate: • ODMB • TMB mezz • MPC V.Perelygin CMS Upgrade Week and Workshop Nov. 08-2011

  3. ME1/1a Un-ganging in the region 2.1<|η|<2.4 ME1/1a 3-to-1 Connect. Scheme: 3 strips to one CFEB channel: LVDB With 7 DCFEBs: 1 strip → 1 channel 6 6 7 7 V.Perelygin CMS Upgrade Week and Workshop Nov. 08-2011

  4. ME1/1 Upgrade advantages: 1.Unambiguous trigger operation in the region 2.1<|η|<2.4 (no ghosts) 2. Electronics with higher rate capability 3. Readout robustness ( Optical readout replaces 50-pin SC cables having up to 14.5m length) 4. ME1/1a: 18% noise decrease → Spatial resolution improves from 60 µm to 52 µm V.Perelygin CMS Upgrade Week and Workshop Nov. 08-2011

  5. ME1/1 Upgrade: organization • 2 working groups: • At UXC • CSC extraction/ loading • CSC transportation • Machinery works • SC cables cutting • Optical cables routing • ME1/1 P.Panel modification • At the ME1/1 Assembly Room • Old electronics disassembly • New electronics implementation • Chamber tests with new FASTDAQ software V.Perelygin CMS Upgrade Week and Workshop Nov. 08-2011

  6. ME1/1 CSC installation Need Crane + Cherry picker Loading Machine Bottom CSC installation with ~5m extension bar V.Perelygin CMS Upgrade Week and Workshop Nov. 08-2011

  7. ME1/1 Zone To be redone for optical cables CSC opt. P.Panel ME1/1 P.Panel 20º cable trays V.Perelygin CMS Upgrade Week and Workshop Nov. 08-2011

  8. Time estimation – UXC works • Remove CSC from disk: 2 ÷ 3 chambers / day (~8 hours) • Crane + Cherry picker • 2 persons • Install CSC: ~2 chambers / day (~8 hours) • Crane + Cherry picker • 2 persons • Board change on the installed CSC: 4-6 hours • Crane + Cherry picker • 2 persons V.Perelygin CMS Upgrade Week and Workshop Nov. 08-2011

  9. LS1 schedule - time in UXC with crane • Remove CSC – all 72 in one time period • Reinstall CSC – in 2 separate time periods (36+36) • Means that we need to store all the chambers: 72+4 spares upstairs. V.Perelygin CMS Upgrade Week and Workshop Nov. 08-2011

  10. ME1/1 Assembly Room + Storage area 16 m Ar+CO2 ; LV For the tests a new FASTDAQ software should be developed. V.Perelygin CMS Upgrade Week and Workshop Nov. 08-2011

  11. Assembly room: where ? SX5! But for ALL CSC now only 100m2 is reserved… Need to decide. V.Perelygin CMS Upgrade Week and Workshop Nov. 08-2011

  12. ME1/1 Upgrade cycle 6. Loading Landau Ped. noise 5. Full FASTDAQ Tests: LV, HV. CSC passport 1.Extraction 4. Storage area: burn-in testing. Gas flow, LV=ON CFEB, LVDB Go to ME 4/2 2. CSC are in dosim. quarantine at UXC (?) Machinery (Workshop) 3.Old electronics disassembling new one installation. FASTDAQ tests w/o HV V.Perelygin CMS Upgrade Week and Workshop Nov. 08-2011

  13. Tests on Disks • Installed CSC should be connected to the VME electronics and tested with small FASTDAQ setup (LV tests). • In the case of board failure after installation CSC should be extracted and board changed. • There should be more time reserved for CSC installation than that for extraction. V.Perelygin CMS Upgrade Week and Workshop Nov. 08-2011

  14. Electronics tests at ISR and on- chamber integration • It is very important to know how much the boards installation and test work takes. For this we need to work with a CSC fully equipped with the new electronics. • Now at ISR we test new LVDB with 7 CFEBs installed on spare ME1/1 CSC • On-chamber integration (drawings in preparation): - Optical cables routing and optical P.Panel position, - New cables: LV, in ME1/1a: Strip readout and DCEB-DCFEB - Mechanical works for ME1/1a area: new screens and support details - CFEB & ALCT covers to be machined to match DCFEB geometry • End of this year – out of ISR…. ->SX5? V.Perelygin CMS Upgrade Week and Workshop Nov. 08-2011

  15. Conclusion • The Upgrade of ME1/1 electronics is important and challenging • The work to be done during LS1 • A lot of things not yet defined and scheduled • On-chamber Integration work is going on • Problem with Testing/ Assembling areas – place to be defined V.Perelygin CMS Upgrade Week and Workshop Nov. 08-2011

  16. Backup slides Backup slides V.Perelygin CMS Upgrade Week and Workshop Nov. 08-2011

  17. Extraction/ Installation Procedure • Works to done beforehand (Cherry picker needed ): Sealing opening, P.Panel opening, Cables disconnection Could be done at any time before chamber extraction for a number of CSC. Preparation for 4 CSCs – one day. • Preliminary operations (if some EMU CSC work): - HV zeroed for CSC to be extracted and other 3 CSC in the same gas chann. - Corresponding Maraton switch off → 9 ME1/1,2,3 CSC off (trigger sector) - Gas channel on the ME1/1 gas panel disconnected • Main work (Cherry picker +Crane) needed : - preparations in UXC (Loading machine posts installation, Cooling channel off, Gas/water pipes) - CSC extraction (loading), (2-3 CSC / 8hours). • Subsequent works - Services back (water, gas, LV) - HV ON V.Perelygin CMS Upgrade Week and Workshop Nov. 08-2011

  18. FASTDAQ tests at ISR: CSC 8B- (3 CFEBs in ME1/1a) Test 15 CFEB noise Test 21 Comparator V.Perelygin CMS Upgrade Week and Workshop Nov. 08-2011

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