1 / 29

2011-12 winter shutdown planning

2011-12 winter shutdown planning. A.Tauro 28-2-2012. V1.2. 2011-12 winter shutdown. Shielding. EMC. TRD. Shielding. Open L3. Close L3. Beam off: Dec 8 th at 6:00 AM Beam on: Mar 14 th at 18:00 PM. UX25 access restrictions. Open L3. Close L3. Access restrictions:

chi
Télécharger la présentation

2011-12 winter shutdown planning

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. 2011-12 winter shutdown planning A.Tauro 28-2-2012

  2. V1.2 2011-12 winter shutdown • Shielding EMC TRD Shielding Open L3 Close L3 Beam off: Dec 8th at 6:00 AM Beam on: Mar 14th at 18:00 PM

  3. UX25 access restrictions Open L3 Close L3 Access restrictions: Removal/installation of shielding (restriction includes RB24 triplets) • PX24 blocks: no access CR5 and UX25 • PX24 beams (35t): no access CR1-5, Expo, and UX-25 • All other blocks: no access to UX-25 (or 1-2 teams max, not on A-side) TRD insertion: no access to MNF and L3 AUG test (Arrêt Urgence General – General Emergency Stop) – no access UX25 DSO test (Department Safety Officer) – no access UX25 No access SX2 during manipulation of blocks in SX2 (except ACR and WRs)

  4. L3 and MNF access restrictions Open L3 • Wks 49-50 and 7: access in normal hours (e.g. TPC) to be coordinated with TC • Wks 1-2: no access inside L3 during TRD SMs insertion • When moving from low-beta to insertion platform: no access to MNF • When inserting the module: no access L3 and MNF • Watcher needed in wks 49-50 and from wk 6 (Fri 10/2) onwards

  5. EN-HE • 8th Dec (9:30): reinstall crane (PR-774) electronics • 8th Dec (AM): load test cavern cranes (20t) • 30th Jan. UX25 crane inspection by Brunnhuber • Wk 8: test UJ22 jig + annual maintenance P2 cranes • Wk 10 (Fri 9 AM): removal crane electronics EN-HE-LM • 14th Dec: maintenance lift CR1-4 • Lift stopped whole day (7:00 – 16:00) • 24th Feb: maintenance UX25 lift  No access UX25 whole day • Lift not operational whole day

  6. TE-VSC • 8th and 9th Dec: close MNF valve and venting central beampipe • Feb 2nd – 21st: pump down central beampipe • Week 8-9: take out GIS table • Week 10: open manual valve on MNF

  7. GS-ASE • Week 52: evacuation test • Jan. 5th – 13th: RAMSES firmware upgrade • Jan. 9th: red phone maintenance • Jan. 20th and 26th: test fire detection • Week 5: sniffer maintenance • Week 6: maintenance gas detection (UX, CR5) • Week 7 (Feb.15th): sniffer SW upgrade • Feb. 24th: maintenance PAD/MAD

  8. EN-CV-OP – Dec • 7th Dec at 18:00-22:00: adjustment chilled water flow in the cavern + lower L3-Dipole cooling settings • Will affect all cooling plants • Keep as many detectors on till the 8th (DCS shutdown), in order to check that regulation works (EN-CV-DC side) • Keep L3 and Dipole till the end of the test • Week 50: rinsing of mixed water in UX25 cavern (Philippe) • Refilling in parallel  will not affect ALICE cooling • End wk 50 (16th Dec): test of Dipole flooding alarm • Need access to Dipole (Philippe)

  9. EN-CV-OP – Jan/Feb • Tue 2nd and Wed 3rd Jan: Maintenance ITS (old) ventilator in CR5 • Thu 5th and Fri 6th Jan:maintenance PMD-MTG-MTK ventilation units • Fri 6th Jan: stop chilled water (SU2) • Therefore stop mixed water (cavern, CRs) • Switch tap water into CRs • Week 2: • Cleaning cooling towers (Mon to Thu) • Maintenance L3 injection and UX25 extraction/injection units. Test of alarms • New motor L3 ventilation (date tbc) • Modification of chilled water pipe for L3 jacket (Mon) • Maintenance mixed water pumps PX24 (Mon-Wed) and UW25 (Wed-Thu) • Preparation services new ITS dehumidifier • Consolidation of automatic switchover to tap water into CRs • Week 3: • Restart chilled & mixed water (around Wed, tbc) • Maintenance L3 extraction unit. Test of alarms • Maintenance ventilation unit SG2 (Mon-Tue)  will cut Ar/H2

  10. EN-CV-OP • Repair leak FB pipe: • 26th Jan  done • Fernando  compensatory measures • Removal unused FB pipe (I-side): • 13th Jan  done • Need nacelle

  11. EN-EL 1/2 • 13/12: Test general secours: stop general services for 10’ • Will affect all general services, also at P2. The UPSes for DAQ and DCS/HLT will bridge the power cut (assuming they manage to repair the DCS/HLT one on 8.12...). Also rack power (CRs and UX) will not be affected. • However all 'wall outlets', WR of the ACR, offices, meeting room, SXL2, coffee machine will be affected... Also the non ups part of the cooling plants as well as the gas system will be affected… • 17/12: Test auto-transfert: • 1.5 days to configure + 1 day test • No impact on experiments • Wed 18th Jan: maintenance power transformers: • Will cut EXD1/2X for 3h  cut power to CRs (normal network) • Will cut ITS ventilator and HMPID rack in CR5 • Test AUG P2: Fri Jan 20th– No access UX25 • Major electrical perturbation affecting P2 for whole day

  12. EN-EL 2/2 • Consolidation 48V network (after incident 11th Jan 2011) • 1 day no access to UX25  Feb 17th • Major electrical interruption whole P2 • Maintenance power transformer EMT306/2X • Feb 24th 6:00 to 10:00 • Will stop UX25 air extraction and injection (4h) –No access UX25 from 6:00 to 10:00

  13. EN-CV-BE • New ITS dehumidifier unit in SX2 • Electrical control cubicle during week 2 • Power cubicle : delivery week 4 • Cabling : week 4/5 • Start-up and commissioning : week 6 /7 (up to 21st Feb, wk 8)  delayed to week 10 (Mon 5th Mar)

  14. EN-CV-DC • RP sampling: Dec 8th • TRD. Periodic maintenance + replacement chilled water valve + preventive replacement pump + cleaning vacuum pump: plant stopped 2 days on Jan 5th and 6th • SPD. Periodic maintenance + put entire plant on UPS: plant stopped 1 day on Jan 6th • TOF-PHOS-EMC-SPD. Installation PHOS circulator+ replacement flowmeter + periodic maintenance: plant stopped from 9th to 17th Jan • TPC. Periodic maintenance + preventive replacement pump + include heaters in supervision + cleaning vacuum pump: pant stopped from 18th to 20th Jan • HMPID. Periodic maintenance + preventive replacement pump: plant stopped 2 days on Jan 23rd and 24th • TPC RR. Periodic maintenance + install new filters: plant stopped from Jan 25th to Feb 2nd • SDD-SSD. Periodic maintenance + replacement pump: plant stopped from 3rd to 9th Feb

  15. BE-ABP-SU (survey) • Week 50 (Sat-Sun): with L3 doors open: • Zero measurement (SF, TPC feet, MNF valve, MNF) • Low Beta network update • C-side photogrammetry (EMCal) • Weeks 1-2: after each TRD insertion, requiring ½ day on low-beta: • MNF valve and MNF • Week 4: survey MTG • Week 5: at the end of TRD and EMCal, requiring three full days with both doors open: • TRD modules, CAL frame photogrammetry, MNF valve, MNF, SF deformation, TPC feet • Week 6:MTK ST1-2 • Week 7:no access (reserve) • Week 9:survey MTK ST3-4-5 • Week 10 (Tue): survey PMD

  16. TPC • Take out capacitors on all A/C ROC

  17. TPC heat screen • Check the loops for the thermal screen in week 6 (there was a leak) • We will need: • access to the TRD cooling plant • access to C side and A side of TPC • access to the miniframe and PP0 • Since the pipes are on the outside of the miniframe we would probably need a nacelle.

  18. TPC sectors 11 to 15 • Week 49: • Thu 8/12: displace FMD2 box. The box can be reinstalled anytime (at latest in week 5) • TPC A-14/15 (4 days anytime) • Week 3: move PMD to parking position (see next slide) • Week 4: • Mon 23/1 AM: disconnect and displace SPD box • Mon 23/1 PM: disconnect and displace SSD box • Tue-Fri: TPC A-11/12 (4 days) • Sat: put back and test SSD box • Week 5: • Mon 30/1: put back and test SPD box • Wed-Fri: TPC A-13 (2 and 1/2 days) + reinstall FMD2 box

  19. PMD • Thu 19th Jan: PMD moves to Parking Position • Week 4 - 6: PMD Maintenance • Replacing some of the modules which are having problem • Replacing some of the FEE Chains • Need cooling for the DAQ (Crocus) so that we can check the health of the modules and FEE chains. • Week 7 (after 17:00) and 8: Access to Crocus Crate for DAQ • Week 10 (Mon 5th Mar): PMD moves back to Final Position • Week 10 (Tue 6th Mar): survey

  20. T0 • Investigation of the problem with lasersystem (laser, attenuator, optical splitters, optical cables) • Rack 018,019, start from ~16 January • Miniframe (from Feb.7th) • Upgrade of electronics and check of spare modules • Rack 018,019, start from ~16 January

  21. TPC laser • Annual laser maintenance, 1-2 days. Needs normal power and cooling • Open mirror box below TPC sector A13 (bottom below TPC endplate) and possibly replace camera or mirror. 1-2 days. I want to do this because a weak picture from this mirror/camera makes C-side alignment difficult. Best done with L3 doors open. I believe access between the TOF and TPC should be OK. I need to be able to run the laser, so we need to mount the long laser pipe temporarily after opening of L3 doors.

  22. TRD • 3 supermodules installation, cabling, commissioning (L3 access, A & C sides etc) • Arrival at CERN of Bernd & Co on 2nd Jan. around noon • Insertion sequence: 6-2-3 • Possible to have transport on Sun.8th Jan? • C19 power installation -> we will ask DCS • C16-19 Netgear switch rearrangement • I08/O08 Netgear switch rearrangement • DAQ upgrade (discussion on going between Joerg and DAQ group) • Pretriggerbackup PSU installation and LV cable rearrangements (I/O rack and C-side in L3) • BKF LV protection panel replacement (C-side in L3) • Cooling valves replacement for 10 sectors, C side (if necessary, ask Ana to judge) (C-side in L3) • Moving back pressure sensors from TPC TS to TRD (C-side in L3) • GTU optical fiber installation (Stefan) (C16,17,18 racks) • CR4 HV rearrangement for new super-modules

  23. SPD • Disconnect pipes in front of L3 door: 14/12 (after 17:00) • New inox pipes in front of L3 door: from 14 to 17/12 (after 17:00) • Week 6 : drill filter in PP3 (access PP4) + connect cleaning machine

  24. EMC • 15/12 PM: delivery new nose (SXL2) • 12/1 (PM): delivery 2 SMs (SXL2) (not tested afterwards) • Nantes team: • Monday 16/1 PM: travel to CERN • 17-18-19/1: modification new nose in SXL2 + cavern preparation (insertion SM into rotator if possible) • Friday 20/1 PM: travel to Nantes • Monday 23/1 PM: travel to CERN • 24-25-26/1: insertion • Friday 27/1 PM: travel to Nantes

  25. PHOS • As from Dec 8th (PM): • Fix condensation problem on pipes and on top of detector • New redundant power supply for crystal cooling unit • Flowmeter crystal cooling unit (tbc) • 2 new T sensors inside L3 • Replace RCU_0 in module_3 • Connect crystal plant and LVPS to FB water during cooling stoppage: • E.g. on Jan 5th

  26. MTK • Repair slats on ST3-ST4-ST5 (only limited to the ones accessible) • Week 50 • Week 2 to week 9 • Change one quadrant in ST2 (3 Right Bottom); • Week 4 (Monday and/or Tuesday) done • Connection check in ST1 (without opening); • January: no day fixed yet…

  27. MTG • Maintenance Front-end Electronics, mostly spare installation: • 19th to 21st Dec. Nacelle needed and green fences must be dismantled • Check on RPC (MTR21-OUT) for gas tightness, eventual dismounting and eventual changing • Week 3. Nacelle needed • Survey of 2 half-planes (MT12-IN and MT12-OUT) including measurements withtheodolite and photogrammetry, survey of the other 6 half-planes with only theodolite measurements • Week 4. Nacelle needed • SAA3 Shielding - MTR in closed position • Week 8 - can some concurrent activity in the MTR be carried out (i.e. regional electronics)? • General global check ((HV, LV, FE, Decision electronics, configuration, readout, ...) • Week 8. Feb 20th (open/close some MTR half planes, nacelle needed) and replace 1 Local decision board located in racks at the gangways level.

  28. ZDC • Move detectors by 1.36m towards IP to solve the problem of collimator shadow

  29. Other activities • ONET: cleaning UX25 cavern (wk 10) • 220V power sockets in MNF-BKF (INEO) (wk 10) • Reinstall ADA (wk 10, tbc) • SAA3 extension (wk 8) done • Pull cable DSS-SPD cooling plant • Modification BBF (evacuation path) done • Install C-side ladder + trap ( LS1) • Picture ALICE (A.Saba)  done • Week 5 (Thu-Sat) • Replacement CR3 racks and removal air conditioning CR2-3-4 • From week 4 (tbc from Dominique: Cegelec) • Installation accelerometers (wk 8) • Test Dipole bus bars (2h, Pascal) with IR camera(Mon 13/2) • Need to remove plexi protection

More Related