1 / 44

ALICE planning meeting

ALICE planning meeting. 12.11.2010. Christmas break schedule. Start on Tuesday, 7 th December. End on Friday, 18 th February Plan: Open both L3 doors Installation of 3 TRD and 6 EMCal modules. ALICE Christmas break schedule. TRD. Close L3 doors. Open Experiment. EMCal. Close

theodorer
Download Presentation

ALICE planning meeting

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. ALICE planning meeting 12.11.2010

  2. Christmas break schedule • Start on Tuesday, 7th December. End on Friday, 18th February • Plan: • Open both L3 doors • Installation of 3 TRD and 6 EMCal modules ALICE planning meeting

  3. ALICE Christmas break schedule TRD Close L3 doors Open Experiment EMCal Close Experiment Open L3 doors ALICE planning meeting

  4. Access to UX25 • No access during: • Removal/installation of shieldings • AUG test (20/1) (Arrêt Urgence General – General Emergency Stop) • DSO test (29/1 tbc) (Department Safety Officer) ALICE planning meeting

  5. Additional access restrictions • During EMCal installation: • When moving from low-beta to yellow platform: no access to MNF • When inserting the module: no access L3 and MNF • During handling of shielding blocks: • PX24 beams (35t): no access CR1-5, Expo, and UX-25 • PX24 blocks: no access CR5 and UX25 • All other blocks: no access to UX-25 • During EMCal/TRD and yellow platform lowering in PX24: • No access low-beta platform • No access SX2 (except ACR and WRs) during blocks manipulation of shaft blocks in SX2 • Access status will be discussed on daily basis (5 o’clock meetings) depending on advancement of activities. Cavern supervision established at all times ALICE planning meeting

  6. ALICE detector status 3/5 PHOS 7/18 TRD 18/18 TOF 7/7 HMPID 4/10 EMCAL ALICE Status 2x 2x 4 5 3 6 2 7 1 8 0 9 17 10 16 15 11 14 12 13 4 0 3 1 2 ALICE planning meeting

  7. Detector status at end of Xmas shutdown 3/5 PHOS 10/18 TRD 18/18 TOF 7/7 HMPID 10/10 EMCAL ALICE Status 2x 2x 2x 4 5 3 2x 6 2 7 1 2x 8 0 9 17 10 16 15 11 14 12 13 4 0 3 1 2 ALICE planning meeting

  8. TRD installation • 3 modules at P2 (SM2, SM11 and SM16). SM15 not yet at CERN, expected by end November • Installation sequence: 16 → 15 → 11 (or 16 → 11 → 15) • 2 technicians (Philippe and Didier) + Survey (Nail from 6/12) + TC permanently at P2 • Survey before-after each insertion to check space-frame deformations and displacement of beampipe (flange), miniframe and TPC feet • Special ”working at height” training session on November 30th • If you are interested, you should contact asap Fernando ALICE planning meeting

  9. TRD 16 Conflict between rotator motor and miniframe services (TPC pipes) ALICE planning meeting

  10. TRD 15 Miniframe staircase to be removed Access for PMD and laser with ladder ALICE planning meeting

  11. TRD 11 ALICE planning meeting

  12. EMCal installation Status of modules: 1 module still in bld.167 1 module moved to P2 last week 2 modules will be shipped from Grenoble to P2 16 November Last 2 modules will be shipped to P2 around middle of December Test station will be moved to P2 (SXL2) next week Requiring a lot of access to connect everything up, test, and debug as they commission the new SMs Low voltage, high voltage (CR4), and DAQ operating as much as possible during the installation period in January. ALICE planning meeting

  13. EMCal 40deg Left extension yellow platform Access to YP from miniframe ALICE planning meeting

  14. EMCal 60deg Both extensions yellow platform ALICE planning meeting

  15. EMCal 80deg Right extension yellow platform O-side door will be fully open ALICE planning meeting

  16. EMCal survey • Zero measurement (wk 51-52), after insertion of 1st module and after the insertion of 2nd module: • A-side: CALframe feet and rails + modules (adaptors) • C-side (photogrammetry - 1/2 day) • After insertion of 3rd, after insertion of 4th and after insertion of 5th module: • A-side: points chosen depending on results previous survey • C-side: with theodolite from A-side (or full photogrammetry, depending on results previous survey) • After insertion of 6th module: • A-side: full • C-side: full ALICE planning meeting

  17. Access to EMCal modules Back-frame: existing ladders – located at 50cm from electronics crates Baby-frame: existing ladders – very close to crates C-side A-side ALICE planning meeting

  18. PMD plans • 20/1: PMD in parking position – repair of electronics chains • Pieter needed to move detector • Access to CROCUS: 2 days • when ? Best would be in wk 49 night, or wk 3 night • Survey of PMD after closing shielding • Transfer survey network to miniframe (Antje) • SPIE: new air cooling system – major installation work in January • Scaffolding needed C-side ? ALICE planning meeting

  19. TOF/PHOS plans • TOF: • HV hardware checks on SM13 (December) • TRM replacement (14 TRMs on the A side) (3/01 – 12/01) • Replacement DC-DC (with no LV spare channels): • SM10 must be displaced – tentative date 8-9/12 (night) • PHOS: • Investigate module 2 pedestal issues • Try to understand behavior of unstable branch in Module 3 • Remake ISEG crate to connect to the hardware interlock ALICE planning meeting Gilda/Yury

  20. Muon TRG plans • RPC Detector/gas system: • Check gas tightness on few RPC detectors - need nacelle INSIDE and OUTSIDE (Verify availability) (~3 days between January 10-18) • Upgrade Sensor gas humidity and pressure regulator (CR5, schedule to be defined with the gas team) • Replace few RPC modules with high current: under discussion • Electronics: • Maintenance Local decision electronics (December) • Upgrade FE threshold distributors, higher segmentation (level 4 gangway, December) • Upgrade firmware DARC and Regional board in order to speed up MTR decision electronics configuration (date tbd, January) ALICE planning meeting Pascal/Ermanno/Paolo

  21. Muon TRK plans • Crocus firmware update : protection against spurious busy reset signal • Need to access the Crocus: nacelle (Verify availability) (December) • Station 2: quadrants (with HV problems) • Test spare quadrants in lab (December) • Replace the quadrants: need access to Fass + crane (?) (January) • Survey ? • High occupancy bus patches • Remove slat(s) with occupancy to test in lab : need muon access + nacelle(Verify availability) (December). • Depending on the results, implement solution on slats: need muon access + nacelle (Verify availability) (January) ALICE planning meeting Ermanno

  22. ZDC plans • Check platform displacement with survey • One week – depending on surveyors availability ALICE planning meeting Paolo

  23. DAQ plans • The DAQ plans to make a substantial upgrade during the shutdown: • Hardware: addition of servers, DA-DQM machines, LDCs mainly for the TPC • Software: migration from Linux SLC4 32 bits to SLC5 64 bits • Planning will be confirmed next Wednesday ALICE planning meeting Pierre/Uli

  24. SPD cooling plans • Wk 49: cut pipes in order to open the doors • Wk 1: reconnect temporarily pipes and test with dummy sector (installed on I-side, close to HMPID pump) • Wks 2-3: wash 4 lines • Wk 3: reconnect cooling lines once doors are closed • Wk 4: restart SPD cooling ALICE planning meeting

  25. SSD plans • Ton: remove a cooling pipe from SSD corrosion test setup (week 2) • Replacement CAEN module (C-side) + repair bad temperature signal at the C-side (week 2) ALICE planning meeting

  26. T0 plans • Activities planned from 7-19 December (nights ?): • Check/repair the amplifiers from A and C side (inside L3) • Check the signal cables from A-side • Check/repair fast electronics modules (racks O18-19) • Need possibility to do standalone runs in parallel ALICE planning meeting

  27. TRD plans • Week 49: • LV Wiener ~80 PSU Back-Plane modifications (to improve mechanical stability, same as TPC applied already) • Netgear switches replacements for broken ones (1 day) • Week 50: • LV line fixation: installation of improved patch panels on front of module (C-side) and replacing cables with better quality ones • Logistics for super-module installation, and preparations • Weeks 51, 52 (end-year): • Installing 3 super-modules, connections • Week 1: • Finalizing connections, start commissioning, and start Xe/CO2 circulations • Week 2: • Stable running with cosmics • 3 to 4 weeks in January or February: • Stable running with cosmics for alignment and with Krypton for gain calibrations (to be still discussed) ALICE planning meeting

  28. TPC plans • Recover all water inside cooling plant (week 50) • Replacement of 15 damaged FECs (equally distributed A-C sides) • ~3 days per FEC. Therefore, we would like to use all available time slots where access to the L3 is possible. • The work will be carried out by a team of two to three people (Antoine, Yasmina, and Samuel to be confirmed). • This team will not work during the Christmas vacation. • The replacement of FECs does not require: • Cooling, rack power, DAQ, DCS, Trigger • However, at the end of this activity we will need a period of about 2 weeks where all aforesaid systems are available for final verification, and access to the TPC in case something is not working correctly. ALICE planning meeting

  29. TPC plans: replacement of the laser • Start the dismantling of the Spectron laser (week 50, Th-Sat night): • dismount back wall of laser hut (help of P2 technician) • stop cooling water (help of P2 technician) • prepare new water connection (electrical power should be OK) • Install new Ekspla laser (week 1): • remove old laser and install new (use crane to transport laser) • connect cooling water (help of P2 technician) • reinstall back wall (maybe after cutting a hole in it) • Testing and alignment of new laser (week 2): • possibility to run laser behind closed doors (inside hut) • maybe install laser tube temporarily and shoot into TPC whenever • compatible with other installation work • Possible further testing and adjustment (week 3) ALICE planning meeting Borge

  30. Interference with TPC cooling pipes Supports to be removed. Pipes must be hold and displaced of ~30cm Access via the yellow platform (Monday 20 December – before lowering TRD module) ALICE planning meeting 02/11/2010 stephane.maridor@cern.ch 30

  31. ACORDE plans • Check some ACORDE modules (PMTs optical conections, connectors, etc) above the magnet • The plan is to start this activities after the second week of January 2011 ALICE planning meeting

  32. Other activities • SLIE + CV: refurbishment ITS dehumidifier in CR – January • Repair leak (replace leaking part – transport needed) • Recirculation air • Add flowmeter (connect to ELMB: Frederick) • EN-EL (T.Bourrel): motorize L3-Dipole-Miniframe circuit breaker • SPIE: cabling UX25-CR4 – January • New magnet emergency buttons + flashing lights L3 and dipole • Frederick: humidity sensor L3 ventilation (extraction) + redo CTP connectors • Intervention on cavern lift • One day stop – no access to UX25. To be scheduled after working hours • Google propose to produce a custom Streetview application for CERN showing both outside and underground areas ALICE planning meeting

  33. Other activities Philippe: replace rack filters during cooling stop Verification TOF-SF anchoring beams during first days of access Ouvaroff: scaffolding MNF (protection): 21/12 (tbc) ALICE planning meeting

  34. Services interruptions

  35. Gas interruptions Functional test (together with DT, CV and EL) to test safety matrix • Supply gases will be stopped, and racks too • Date proposed (7/12 not possible) – tentative date: Fri 10/12 • No access into UX-CR (2 hours) Stop flammable gases (end of year) • After functional test (Fri 10/12 PM) Remote monitoring of flows and purity of gases (DT project) • Installation of flowmeters, and analyzer on supply pipes (SG building) (except for the Xenon) • Supply gases will be stopped for weeks 1-2. Planning still not confirmed • TPC, TRD and HMPID will keep running but no fresh gas injection possible ALICE planning meeting

  36. Gas interruptions - schedule New gas monitoring New gas monitoring 3 10 Functional tests Stop flammable gases: 10 Dec PM ALICE planning meeting

  37. Cooling interruptions Production network: • Once a year we must clean the cooling towers – this is imposed by the law and will imply to stop the P2 primary (both chilled and mixed) cooling water for some days • In addition, several maintenance and consolidation interventions (pumps, chillers, flowmeters) are scheduled, which will cause additional interruptions of primary cooling water • These interventions are scheduled from 12/1 (PM) to 21/1 – during this time there will be no primary water (chilled, mixed) • CR1-2-3, the Wiener PS and detector cooling plants affected (plants can RUN, but no cooling power) • Investigating possibility to keep running DCS (tap water) Cooling plants: • Yearly maintenance on each cooling station (typically one day) • Replacement of pneumatic actuators for TOF/TRD/TPC plants + TOF/PHOS flowmeter • CP will be stopped during maintenance ALICE planning meeting

  38. Cooling interruptions - schedule TOF/PHOS EMC Maintenance and consolidation TPC 10 17 12 TRD TPC Cooling towers SSD/SDD HMPID 21 SPD Maintenance on production network. No primary water from 12/1 (PM) to 21/1 Maintenance on cooling plants. CP will be stopped during maintenance ALICE planning meeting

  39. Services interruptions – impact on ALICE • Of course we would like to skip these interventions – this is not an option • Other interventions in the shadow of the cooling stop: • AUG Test (20/1) (Arrêt Urgence General – General Emergency Stop) - Major electrical perturbation. Also ACR affected • DSS modification (13/1): will stop the full DSS, trigger all interlocks, including stopping power to all racks • All perturbations happening before 21-January. Then 4 stable weeks to startup systems before LHC operation • SSD-SDD: circulation of water must be present at all times. Corrosion of 40 um cooling tubes should be avoided at all times and stagnant water may become agressive in a short time • The plant will be stopped only for one day, during the maintenance • Calibration of SSD safety valves postponed to 2012 • PHOS: fear presence of ice inside cold part - could melt when warming-up crystals • Working at solution to keep freon circulation at all times ALICE planning meeting

  40. Other activities Installation LED on MAD Red phones maintenance Fire maintenance UX25 Maintenance SG2, L3, UX25 ventilation VIP visit Vacuum Beampipe 20 24 13 RP SNIFFER mainten. UPS Vent Beampipe Gas and fire (PX24) maintenance Maintenance SG2, L3, UX25 ventilation UPS UPS LHC evac. AUG DSS Vacuum Beampipe MAD PX24 DSO ALICE planning meeting

  41. Access requestCavern and surface • You should submit an ADI and a task procedure Attach task procedure Work breakdown structure – risk associated at each step Two persons minimum ADI https://edh.cern.ch/Document/ADI Task procedure Template EDMS 1103355 ALICE planning meeting

  42. And then… • The ADI gets signed by TC (requestor notified) • Planning meeting • WPA (Work Package Analysis) meeting (if needed – decided by TC/GLIMOS) • VIC (safety inspection) at start of work • Status report daily 17:00 meeting • Report in Alice logbook Work preparation Work execution ALICE planning meeting

  43. VIP visits • Mr Herman Josef Lamberti, Mitglied des Vorstands der Deutschen Bank, Germany, on Monday 10th January 2011 • Visit schedule: ALICE planning meeting

  44. AOB • Repair LV cables back-frame ? • No. It will be done in 2012 • WPA meeting next week ? • SPIE: PMD ventilation • Next planning meeting Friday 19 November ALICE planning meeting

More Related