1. ALICE 5 o’clock meeting Wk 49 http://indico.cern.ch/conferenceDisplay.py?confId=115692

2. 6/12/10 ALICE planning meeting2 Access request Cavern and surface You should submit an ADI and a task procedure Two persons minimum Work breakdown structure – risk associated at each step ADI https://edh.cern.ch/Document/ADI Task procedure Template EDMS 1103355 Attach task procedure

3. 6/12/10 ALICE planning meeting3 ALICE Christmas break schedule OpenExperiment TRD EMCal CloseExperiment Open L3 doors Close L3 doors

4. 6/12/10 ALICE planning meeting4 UX25 access Rules for 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 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)

5. 6/12/10 ALICE planning meeting5 L3 (and MNF) access No Ventilation EMCal No Ventilation +AUG 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) 24 31 Evac.

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

7. 6/12/10 ALICE planning meeting7 18:00: end HI program –Ramp down both magnets 18:00 – 21:00: access system test. No access UX25 21:00: RPE survey (Jiri + 2 nd person) –Collect samples –Then go to general mode From 21:30: TRD Wiener PS (?) Week 49 - 6/12 Monday Program

8. 6/12/10 ALICE planning meeting8 Activities in UX25 - Week 49 - 6/12 Monday No access UX-25 - possibility of access from 21:00 ITECO HAULOTTE TRD team at CERN: 6 to 10/12 TRD Wiener PS TRD: after 21:30

9. 6/12/10 ALICE planning meeting9 8:00 - 18:00: UX25 cavern in Restricted mode –No access UX25 (except Transport, VAC, TC and RP) –SLIMOS needed (Werner) 8:30 - 9:30: RP liquid sampling (Adeline, Pierre) – SPD and TPC priority 18:00 - 21:00: evacuation test – No access UX25 From 21:00 - Cavern in General mode 14:00 - 15:00: Portuguese Press visit. 10 persons Week 49 - 7/12 Tuesday Program

10. 6/12/10 ALICE planning meeting10 ALTEAD: PX24 shielding blocks –8:00 to 18:00: no access CR5 14:00 to 15:00: put SM16 into the rotator VAC: Neon injection preparation –Transport needed (EDH 4472100) –Remove “green fence” (P2 technician) 9:00: stop flammable gases i-C4H10 and CH4 (Ar/H2 on 10/12) 8:30: Lock L3 power converter + conpensator Reinstall crane electronics Test transmission of alarm lift to FB 8:30: inspection PHOS cooling plant (Arturo, Dominique, Philippe, Sasha) 15:15: VIC SPD DCS: 10:00 – 12:00, interruptions of the GPN link to/from P2 Week 49 - 7/12 Tuesday Activities

11. 6/12/10 ALICE planning meeting11 Activities in UX25 - Week 49 - 7/12 Tuesday 8:00 to 18:00: no access UX25 (except Transport, VAC, TC and RP) 18:00 – 21:00: evacuation test (No access UX25) VAC RP samples 8:00 to 18:00: no access CR5 PX24 shielding: blocks

12. 6/12/10 ALICE planning meeting12 Activities in MNF - Week 49 - 7/12 Tuesday 8:00 to 18:00: no access MNF 18:00 – 21:00: evacuation test (No access UX25)

13. 6/12/10 ALICE planning meeting13 Activities in UX25 - Week 49 - 8/12 Wednesday PX24 shielding: beams (35t) VAC 8:00 to 18:00: no access UX25 (except Transport and VAC) 18:00 to 8:00: access in general mode Move TRD Wiener PS Cut SPD pipes (after 18:00) Stabilizers Muon TRG 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) TPC FEC and TRD LV Maintenance Local decision electronics (after 18:00) Upgrade FE threshold distributors, higher segmentation (after 18:00) TPC cooling Empty tank (after 18:00) Muon TRK: CROCUS firmware upgrade After 18:00 TPC: replacement of damaged FECs (after 21:00)

14. 6/12/10 ALICE planning meeting14 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

15. 6/12/10 ALICE planning meeting15 Activities in UX25 - Week 49 - 9/12 Thursday VAC MNF shielding 18:00 to 8:00: access in general mode 8:00 to 18:00: no access UX25 (except Transport and VAC) TRD Wiener PS RAMSES: removal of Data Acquisition modules CR5 Stabilizers No access CR1-5 during lifting up of 5 big beams Interruption on auto-transfert network (from 07:00 till 07:05). No access underground TPC FEC and TRD LV EMCal team at CERN: fit rollers on all SMs Muon TRK: CROCUS firmware upgrade

16. 6/12/10 ALICE planning meeting16 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

17. 6/12/10 ALICE planning meeting17 Activities in UX25 - Week 49 - 10/12 Friday Move if needed LV156 Gas functional test (2h no access UX25 and CR1-5) Maintenance PX24 MAD (transparent) MNF shielding No access CR1-5 during lifting up of 5 big beams 18:00 to 8:00: access in general mode 8:00 to 18:00: no access UX25 (except Transport) TRD Wiener PS TPC FEC and TRD LV EMCal team at CERN: fit rollers on all SMs Muon TRK: CROCUS firmware upgrade

18. 6/12/10 ALICE planning meeting18 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

19. 6/12/10 ALICE planning meeting19 Activities in UX25 - Week 49 - 11/12 Saturday LV156 MNF shielding 18:00 to 8:00: access in general mode 8:00 to 18:00: no access UX25 (except Transport) TRD Wiener PS TRD LV

20. 6/12/10 ALICE planning meeting20 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

21. 6/12/10 ALICE planning meeting21 Activities in UX25 - Week 49 - 12/12 Sunday Access in general mode

22. 6/12/10 ALICE planning meeting22 Activities in MNF - Week 49 - 12/12 Sunday Access in general mode

23. Services interruption

24. 6/12/10 ALICE planning meeting24 Maintenance gas systems Functional tests New gas monitoring 13-15/12: Stop N2, CO2, Neon, Ar and C2H2F4 (24 hours max N2, CO2 and Neon) TRD backup (N2 bottle in CR5) – HMPID backup (Ar bottle in SG2) 13

25. 6/12/10 ALICE planning meeting25 Gas system status over Christmas Albin 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 7 Dec until 21 Jan PM (after maintenance L3 ventilation)

26. 6/12/10 ALICE planning meeting26 Maintenance cooling units Cooling Plants and Primary Network Cooling towers 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). Part of DCS will keep running Maintenance and consolidation 17 21 12 TOF/PHOS EMC HMPID SPD TPC 10 Maintenance on cooling plants. Replacement of pneumatic actuators for TOF/TRD/TPC plants + TOF/PHOS flowmeter. CP will be stopped during maintenance SSD/SDD TRD

27. 6/12/10 ALICE planning meeting27 Maintenance ventilation units SG2 UX25, Muon TRK-TRG 17 12 UX25, Muon TRK- TRG L3

28. 6/12/10 ALICE planning meeting28 Safety and electrical systems PX24 fire detect. 20 UX25 fire detect. + red phones UPS AUG UPS DSO Evacuation DSS SNIFFER mainten. Auto-transfert Evacuation Early morning/late evening (tbc)

29. 6/12/10 ALICE planning meeting29 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 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 Safety and electrical systems Impact on ALICE

30. 6/12/10 ALICE planning meeting30 DAQ upgrade plans 21 st Dec PM till the 04 th 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. 5 th to the 11 th of January included –DAQ restarted on the first working day for 1 week. The DAQ will be switched ON with the present version of all software. Allow a quick commissioning after the installation of new detector modules or the intervention on existing detectors. 12 th to the 23 rd Jan included –The DAQ will be OFF during the cooling interruption at P2. –DAQ renovated (see TB December) 24 th 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. When the DAQ will be OFF, it will be running in the DAQ lab in Meyrin. There will be a few hours of interruption to switch from P2 to Meyrin and back. Pierre/Uli

31. 6/12/10 ALICE planning meeting3126/11/10 ALICE planning meeting31 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 André / Peter

32. 6/12/10 ALICE planning meeting32 Magnet control upgrade Wk 49: nous devons intervenir dans la MCR pour: –changement des alimentations 24V et 48 V des systèmes MSS et MCR (préventif) –changement des modules convertisseurs PT100 des hots points du Solénoïde (correctif suite à deux incidents ayant entrainés l'arrêt du Solénoïde) et en UX25, comme Philippe Bouvier l'a déjà signalé: –recâblage des AU du dipôle et du Solénoïde –signalisation du champ magnétique du dipôle et du Solénoïde Nous étudions toujours une solution pour le monitoring des températures du Solénoïde. L'arrêt de fin d'année va permettre de faire une meilleure approche de ce qui est existant en UX25. En ce qui concerne l'alimentation électrique de la MCR, nous dépendons actuellement d'une seule source de courant sous UPS avec secours diesel. Afin d'établir une redondance pour l'alimentation de la MCR je souhaiterais installer une seconde source d'alimentation sous UPS. Je sais qu'une étude est faite à ALICE pour augmenter la puissance des UPS existants en 2012. Je souhaiterais que cette demande soit incluse pour le calcul de puissance des nouveaux UPS (besoin pour la MCR: 16A en monophasé) Pascal

33. 6/12/10 ALICE planning meeting33 VIP visits – wk 49 Portuguese Press visit to CERN (7/12 14:00 to 15:00). 10 persons

34. 6/12/10 ALICE planning meeting34 AOB SLIMOS shifts still missing in wks 49-50 and 4-5