TS planning meeting 7 to 11 Nov 2011

Technical stop Wk 45: Monday 7 th to Friday 11 th November Ramp down magnets (SL): Mon 8:00 – 8:30 (latest) RP search (Arturo and Philippe): Mon 8:30 – 9:15 Access starts Mon at 9:15 No access during the following periods: – Tuesday 7:00 to 9:00: periodic maintenance lift (AS703) – Thursday 6:00 to 9:00: leak test on FB pipe. No access, exceptions to be agreed with TC – Whole Friday morning (tbc depending on TPC progress): GS-ASE will install and test new sirens in UX25 for the evacuation alarm

CV Primary cooling: – Intervention SF2. Should not impact ALICE Detector cooling (see next slide): – HMPID: replacement liquid sensor – SSD-SDD: replacement SSD T sensor – SPD: replacement pump

Activity Détector cooling Cooling Monday 7-Nov-2011Tuesday8-Nov-2011Wed 9-Nov-2011Thu 10-Nov-2011Fri 11-Nov-2011 MorningAfternoonMorningAfternoonMorningAfternoonMorningAfternoonMorningAfternoon SPD RP AnalysisReplace Pump “B” and test it SSD/SDD RP Analysis Disconnect temperature transmitter and heaters HMPID RP Analysis Replace level transmitter TRD RP Analysis Maintenance on station Cooling in run Cooling in stop 03/11/2011S.ROUSSEE EN/CV/DC

Detector activities TPC: – Replace FEC (2 shifts from and from from Mon to Thu) – Fix leak on heat screen loop TPC laser: – Access to laser hut: about 2-3 hours to check out the laser system MTK: – Low voltage maintenance ST1-2 – Need light FASS – New CROCUS cable ST4 (SPIE). VIC needed, waiting for more info – Check BUS-patches in ST2 – Remove cable lying on L4 gangway ZDC: – Replace card in rack (C-side) ? TRD: – Check switches in I-/O-/C-side racks – Check LV connections in sectors (C-side). Tighten connections.

Detector activities MTG: – MT12-OUT-RPC6: HV cable check and eventual replacement; for this activity one nacelle is needed – Gas: activity in CR5 and eventually at the distribution rack in the cavern side C, level 0 (PH-DT). There is not gas activity foreseen on the RPCs – Check possibility to modify SAA3 shielding (Thu AM) EMC: It should be only a half day of effort (probably on Mon afternoon): – Check and possible replacement of 1 RCU board from EMCal super module – Check communication link (cable) between one TRU module and STU module. Repair cable if necessary – Verify possibility to displace fibers (should be done in winter shutdown)

Detector activities TOF: replace DC/DC converters (Tue) – Move 2 SMs (1 and 10) ITS (see Claudio’s presentation): – SSD: Replace FEROM AD module on side A racks (Tue) Check connection T sensor on cooling plant – SDD: replacement board Med5 (tbc) – SPD: ultrasound cleaning ACO: – Calibration test to the electronics systems (rack O14 on Level-4) – Check 2 ACORDE modules that are not working properly T0: checking laser system and electronics

Watcher schedule MonTueWedThuFri 8:00 – 12:00 TOF EMCTPC 12:00 – 16:00 TOFTPCTRDTPC 16:00 – 20:00 TOFTPC

Other activities TE-VSC: inspection GIS setup (Tue) BE-ABP: check hydrostatic leveling system EN-HE: – Mount crane electronics (Mon AM) and dismount it on Fri (tbc) – Load test cavern cranes (Tue, PM) – Maintenance SX2 crane (wk 48) EN-EL: inspection PHOS cooling plant (UPS) GA-ASE: maintenance PX24 access system (faulty biometric scan). Access will not be stopped Intervention on the GSM and phone systems foreseen for all CERN on Wed VIP visit (France 5) on Nov 9 th at 11:00

TC & P2tech Inspection 5 TPC bottom sectors – Thu 14:00. Ton, Borge and Luciano S. Removal old fire detection pipes (Philippe) Identify gas spare pipes (Philippe) ADC access (Didier) Designer (Al) + TC: check L3 fences, DCal passage, SAA3 modification, TRD installation TC: look at TRD scaffolding (needed for Christmas)

AOB TRD: delivery next module around 17 Nov Dcal: – Delivery beams to SX2 wk 44 and load test wk in 46 TRD: – Counterweight test wk 47 – Reinforcement of frame ongoing. Test wk 48 (tbc)