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ALICE planning meeting

ALICE planning meeting. 26.11.2010. Outline. ALICE Christmas break schedule Access UX25, L3 and MNF Services interruption Gas, cooling and electricity DAQ and DCS plans Detectors activities Day-by-day schedule wks 49-2 VIP visits AOB. Christmas break schedule.

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ALICE planning meeting

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  1. ALICE planning meeting 26.11.2010

  2. Outline • ALICE Christmas break schedule • Access UX25, L3 and MNF • Services interruption • Gas, cooling and electricity • DAQ and DCS plans • Detectors activities • Day-by-day schedule wks 49-2 • VIP visits • AOB ALICE planning meeting

  3. 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

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

  5. Access restrictions • The reasons to restrict the access are: • Handling of shielding blocks • Lowering of heavy structures (yellow-platform, TRD and EMCal rotators and modules) • Installation of EMCal modules • Removal of L3 ventilation • Evacuation tests • … • The access restrictions concern the UX25 cavern, MNF, L3 and CRs • SLIMOS shifts must be booked wks 49-50 and 4-5 • Indications are given (next slides) concerning the access during the whole break – however we’ll assess the situation on daily basis (5 o’clock meetings) depending on advancement of activities ALICE planning meeting

  6. UX25 access • Criteria for access restrictions: • Removal/installation of shieldings (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 • LHC evacuation test (7/12 after 18:00 and 24/12 tbc) – no access UX25 • Gas functional test (10/12 - 2 hrs) – no access UX25 and CR1-5 • AUG test (20/1) (Arrêt Urgence General – General Emergency Stop) – no access UX25 • DSO test (12-13/1) (Department Safety Officer) – no access UX25 • No access SX2 during manipulation of blocks in SX2 (except ACR and WRs) ALICE planning meeting

  7. L3 (and MNF) access EMCal No Ventilation 24 31 No Ventilation +AUG EMCal EMCal Evac. • Wks 50 and 4: access (TPC) to be coordinated with TC (transport) • Wks 1-2: no access during EMCal SMs insertion inside L3 (see day-by-day) • When moving from low-beta to yellow platform: no access to MNF • When inserting the module: no access L3 and MNF • Watcher needed in wk 49 and from wk 4 onwards • Wk 6 or 7 (tbd): Kr calibration – TPC T stability (all interventions to be agreed by TC/RC) ALICE planning meeting

  8. Services interruption

  9. Maintenance gas systems New gas monitoring New gas monitoring 3 10 Functional tests New planning under discussion – consisting of stopping all systems for 2 days in December (wk50) (more news next week) ALICE planning meeting

  10. Gas system status over Christmas • TPC & TRD: ON • TOF: ON – stop from 12 to 21/1 (cooling stop, KNF pump stopped) • HMPID: ON (Ar backup) • PHOS: N2 flushing • PMD: ON (except wks 1-2 – gas stop) • Muon TRK: backup CO2 • Muon TRG: backup Ar • No flammable gases from 10 Dec PM until 21 Jan PM (after maintenance L3 ventilation) ALICE planning meeting Albin

  11. Maintenance cooling unitsCooling Plants and Primary Network TOF/PHOS EMC Maintenance and consolidation TPC 10 17 SSD/SDD 12 TPC Cooling towers TRD HMPID 21 SPD Maintenance on production network. No primary water from 12/1 (PM) to 21/1 CR1-2-3, the Wiener PS and detector cooling plants affected (plants can RUN, but no cooling power). Investigating possibility to keep part DCS running (Andre) Maintenance on cooling plants. Replacement of pneumatic actuators for TOF/TRD/TPC plants + TOF/PHOS flowmeter. CP will be stopped during maintenance ALICE planning meeting

  12. Maintenance ventilation units UX25, Muon TRK-TRG UX25, Muon TRK-TRG 17 12 SG2 L3 ALICE planning meeting

  13. Safety and electrical systems PX24 fire detect. 20 Evacuation SNIFFER mainten. UX25 fire detect. + red phones UPS UPS DSS Auto-transfert Evacuation Evacuation Early morning/late evening (tbc) UPS AUG DSO ALICE planning meeting

  14. Safety and electrical systemsImpact on ALICE • EN/EL: interruption on auto-transfert network (9/12 from 07:00 till 07:05): • All 'normal power‘ will be cut for 5 minutes: wall outlets, non-UPS in the ACR, SXL2, non-UPS power for the cooling plants, gas systems • It will not affect the 'machine network‘ (all racks will remain powered (part of the 'EXD', machine, network) • This network also provides the power to the UPSes, so they will run on battery for the time of this cut • See https://edms.cern.ch/file/1106913/1/ENNC_2010_196.pdf • EN/EL: 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 • LHC evacuation tests (7/12 after 18:00 and 24/12 tbc) • no access UX25 ALICE planning meeting

  15. DAQ upgrade plans • 21st Dec PM till the 04th Jan included • The DAQ will be OFF during the CERN closure. • The ACR PCs will be left ON to give access to the DCS for the detectors teams who need it. • 5th to the 11th of January included • The DAQ will be switched ON with the present version of all software to allow a quick commissioning after the installation of new detector modules or the intervention on existing detectors. • 12th to the 23rd Jan included • The DAQ will be OFF during the cooling interruption at P2. • This period will be used by the DAQ team for a major hardware reshuffling (addition of LDCs, replacement of several servers) and a major software upgrade (transition from Linux SLC4 32 bits to SLC5 64 bits). • 24th January • The DAQ will be ON again. It will run under SLC5 64 bits unless there would be an unexpected key problem. • The electronic logbook will remain available during the whole period. ALICE planning meeting Pierre/Uli

  16. DCS plans Baseline: DCS will be operational all times where technically possible With ‘best effort’ support With access restrictions during CERN End-of-Year closure (22/12 – 4/1) Many activities and upgrades are planned Will be coordinated with individual detectors to minimise impact For central systems, as much as possible in shadow of other perturbations (e.g. cooling stop) Perturbations (e.g. for reboots etc.) cannot be excluded Detectors are invited to communicate ‘critical periods’, with services needed Will try to cater for detector needs as much as possible Known perturbations: Tue 7/12 10:00 – 12:00, interruptions of the GPN link to/from P2 Upgrade of router, test impact on ALICE Wk50 (13-17/12) – major updates to all PC (many perturbations to be expected) 12/1 – 21/1 (cooling stop), only minimal central services. All detector DCS switched off, except for special requests and if cooling power allows More detailed planning at weekly and daily meetings 26/11/10 ALICE planning meeting ALICE planning meeting 16 André / Peter

  17. 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

  18. Detectors activities

  19. EMCal Status of modules: 4 modules in SXL2 Last 2 modules will be shipped to P2 around middle of December Test station will be moved soon to P2 (SXL2) 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

  20. EMCalSurveys • 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

  21. PMD • Wk 50: • Lift CROCUS (in order to open L3 doors) - can be done by P2 technicians • disconnect cables (after 16/12) • Wk 51 (20/1): move PMD in parking position (Pieter) • Wks 51-4: repair electronics chains • Need Ar/CO2 at all times (except during gas stop wks 1-2) • Wks 5-6 (night): access to CROCUS (doors closed, use CROCUS platform) • February: move PMD to final position • Wk 6: survey (transfer survey network to miniframe (Antje)) • Wks 1-2 SPIE: new air cooling system – major installation work in January (should be done by end January) • Nacelle HAULOTTE needed ALICE planning meeting

  22. TOF/PHOS • 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 (tbc) • 8-9/12 (after 18:00). Yannick must intervene to release the support beams • PHOS: (A.Vinogradow at CERN 1/12 end January) • Investigate module 2 pedestal issues • Try to understand behavior of unstable branch in Module 3 • Remake ISEG crate to connect to the hardware interlock • 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 Gilda/Yury

  23. Muon TRG • RPC Detector/gas system: • Check gas tightness on few RPC detectors - need nacelle INSIDE and OUTSIDE (Verify availability HAULOTTE) (~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 8th after 18:00) • Upgrade FE threshold distributors, higher segmentation (level 4 gangway, December 8th after 18:00) • Upgrade firmware DARC and Regional board in order to speed up MTR decision electronics configuration (wk 6, after the DAQ upgrade) ALICE planning meeting Pascal/Ermanno/Paolo

  24. Muon TRK plans • December: CROCUS firmware upgrade (protection against spurious busy reset signal): • Access to Crocus, Dipole and FASS. Need nacelle end wk 50 • Not possible to use PM25 lift • High occupancy bus patches (under discussion): • Remove one "bad" slat (and replace by one spare) to test it in lab • Access to Dipole and to muon side with nacelle in December • Depending on the results, fix all remaining “bad” slats in January • January (from wk 2): replacement 2 quadrants ST2 with faulty wires: • Test spare quadrants in lab (December) • Access to FASS • Crane needed. Survey needed? Waiting for info ALICE planning meeting Ermanno/Herve

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

  26. SPD cooling plans – under discussion • Wk 49 (8/12 after 18:00): cut pipes in order to open the doors • Wks 2-3 (during cooling stop): wash 4 bad sectors (machine installed on I-side, close to HMPID pump). Access to the outer side of MNF (side I) to work on the heater of sector 0 (nacelle or scaffolding needed) • Wks 3-4 (as soon as the door is closed): reconnect temporarily pipes and test with dummy sector inside MNF (in parallel with shielding in wk 4) ALICE planning meeting

  27. SSD/SDD SSD: • 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) SDD: • Calibration of 78 pressure sensors in L3 and on miniframe (January 12 to 14) ALICE planning meeting

  28. T0 • Activities planned from 7-19 December (after 18:00): • 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

  29. TRD installation - weeks 51, 52 • 3 modules at P2 (SM2, SM11 and SM16). SM15 not yet at CERN, expected to arrive by beginning December • 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 • Connection done right after installation ALICE planning meeting

  30. TRD • Week 49: • LV Wiener ~80 PSU Back-Plane modifications (to improve mechanical stability, same as TPC applied already) • Netgear switches replacements (1 day) • LV line fixation: installation of improved patch panels on front of module (C-side) and replacing cables • Repair pretrigger (A-side, below PMD) – after 20/12 • Week 1: • Finalizing connections, start commissioning • 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

  31. TPC • 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 • 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. • Kr data taking at the end of the shutdown (1 week) ALICE planning meeting

  32. TPCReplacement of the laser • Start the dismantling of the Spectron laser (week 50, Th-Sat after 18:00): • 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

  33. ACORDE • 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

  34. Other activities • SPIE + CV: refurbishment ITS dehumidifier in CR – February • 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 • Google propose to produce a custom Streetview application for CERN showing both outside and underground areas • January 5 to 18 ALICE planning meeting

  35. Other activities Philippe: replace rack filters during cooling stop ALICE planning meeting

  36. Day-by-day schedule UX25 and MNF - Wk 49

  37. It H Activities in UX25 - Week 49 - 6/12 Monday No access UX-25 TRD team at CERN: 6 to 10/12 ITECO HAULOTTE ALICE planning meeting

  38. Activities in MNF - Week 49 - 6/12 Monday No access MNF ALICE planning meeting

  39. It H Activities in UX25 - Week 49 - 7/12 Tuesday 8:00 to 18:00: no access UX25 (except Transport, VAC and RP) 18:00 – midnight: evacuation test (No access UX25) Reinstall crane electronics DGS/RP: samples cooling liquids (SPD highest priority) Lock L3 power converter (Fernando) PX24 shielding: blocks VAC TPC FEC Transport needed (EDH 4472100). Demount GIS protection “the green fence” (ALICE) RP samples Replacement of damaged FECs (after 18:00) 8:00 to 18:00: no access CR5 ALICE planning meeting

  40. Activities in MNF - Week 49 - 7/12 Tuesday 8:00 to 18:00: no access MNF 18:00 – midnight: evacuation test (No access UX25) ALICE planning meeting

  41. It H Activities in UX25 - Week 49 - 8/12 Wednesday 8:00 to 18:00: no access UX25 (except Transport and VAC) 18:00 to 8:00: access in general mode Move if needed TRD Wiener PS PX24 shielding: beams (35t) Stabilizers VAC TPC FEC and TRD LV Cut SPD pipes (after 18:00) Muon TRG TRD Wiener PS 8:00 to 18:00: no access CR1-5 and Expo TRD: back-Plane modifications LV Wiener (~80 PSU) and Modified LV patch panels and new cables (after 18:00) • Maintenance Local decision electronics (after 18:00) • Upgrade FE threshold distributors, higher segmentation (after 18:00) ALICE planning meeting

  42. Activities in MNF - Week 49 - 8/12 Wednesday 8:00 to 18:00: no access UX25 18:00 to 8:00: access in general mode ALICE planning meeting

  43. It H Activities in UX25 - Week 49 - 9/12 Thursday 8:00 to 18:00: no access UX25 (except Transport and VAC) 18:00 to 8:00: access in general mode RAMSES: removal of Data Acquisition modules CR5 Interruption on auto-transfert network (from 07:00 till 07:05) TRD Wiener PS MNF shielding VAC TPC FEC and TRD LV Stabilizers TRD Wiener PS No access CR1-5 during lifting up of 5 big beams ALICE planning meeting

  44. Activities in MNF - Week 49 - 9/12 Thursday 8:00 to 18:00: no access UX25 18:00 to 8:00: access in general mode ALICE planning meeting

  45. It LV156 H Activities in UX25 - Week 49 - 10/12 Friday 8:00 to 18:00: no access UX25 (except Transport) 18:00 to 8:00: access in general mode Gas functional test (2h no access UX25 and CR1-5). Stop flammable gases (PM) Maintenance PX24 MAD (transparent) TRD Wiener PS MNF shielding TPC FEC and TRD LV TRD Wiener PS Move if needed No access CR1-5 during lifting up of 5 big beams ALICE planning meeting

  46. Activities in MNF - Week 49 - 10/12 Friday 8:00 to 18:00: no access UX25 18:00 to 8:00: access in general mode ALICE planning meeting

  47. It LV156 H Activities in UX25 - Week 49 - 11/12 Saturday 8:00 to 18:00: no access UX25 (except Transport) 18:00 to 8:00: access in general mode TRD Wiener PS TRD LV MNF shielding TRD Wiener PS ALICE planning meeting

  48. Activities in MNF - Week 49 - 11/12 Saturday 8:00 to 18:00: no access UX25 18:00 to 8:00: access in general mode ALICE planning meeting

  49. It H Activities in UX25 - Week 49 - 12/12 Sunday Access in general mode ALICE planning meeting

  50. Activities in MNF - Week 49 - 12/12 Sunday Access in general mode ALICE planning meeting

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