winter shutdown preparatory meeting A.Tauro /12/11ALICE winter shutdown schedule - A.Tauro 1

Dec JanFeb Mar Wk Mo Tu We Th Fr Sa Su Xmas Day NY Day winter shutdown 2/12/11ALICE winter shutdown schedule - A.Tauro Close L3 Open L3 TRD infrastructure EMC infrastructure Beam off: Dec 8 th at 6:00 AM Beam on: Mar 7 th at 18:00 PM CERN closure: 22/12 to 4/1 included 2

Dec JanFebMar Wk Mo 5 After 17: After 17: Tu We Th After 17:00 Fr AUG Sa DSO Su Xmas Day NY Day 2/12/11ALICE winter shutdown schedule - A.Tauro UX25 access restrictions 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) Close L3 Open L3 Legend No access (except transport) Access possible No access After 17:00 To be scheduled (1 day in wk 51) 3

Dec JanFebMar Wk Mo 5 After 17: No ventilation After 17: Tu We Th After 17:00 Fr No ventilation AUG Sa DSO Su Xmas Day NY Day 2/12/11ALICE winter shutdown schedule - A.Tauro Wks 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 and from wk 6 onwards L3 and MNF access restrictions Close L3 Open L3 4

EN-HE 8 th Dec (9:30): reinstall crane (PR-774) electronics 8 th Dec (AM): load test cavern cranes (20t) Wk 4: test UJ22 jig + annual maintenance P2 cranes 2/12/11ALICE winter shutdown schedule - A.Tauro EN-HE-LM 14 th Dec: maintenance lift CR1-4 –Lift stopped whole day (7:00 – 16:00) Cavern lift has to be stopped as well for one day. Date tbc 5

TE-VSC 8 th and 9 th Dec: close MNF valve and venting central beampipe Feb 1 st – 23 rd : pump down central beampipe 2/12/11ALICE winter shutdown schedule - A.Tauro 6

GS-ASE Week 52: evacuation test Feb. 21 st : maintenance PAD/MAD –Guard will be provided by GS in order not to interfere with cavern access 2/12/11ALICE winter shutdown schedule - A.Tauro 7

EN-CV-OP – Dec 7 th Dec at 18:00: adjustment chilled water flow in the cavern –Will affect all cooling plants –Keep as many detectors on till the 8 th (DCS shutdown), in order to check that regulation works (EN-CV-DC side) –Keep L3 and Dipole on till the 8 th (DCS shutdown) Week 50: rinsing of mixed water in UX25 cavern (Philippe) –Refilling in parallel  will not affect ALICE cooling End wk 50 (16 th Dec): test of Dipole flooding alarm –Need access to Dipole (Philippe) 2/12/11ALICE winter shutdown schedule - A.Tauro 8

EN-CV-OP – Jan/Feb Thu 5 th and Fri 6 th Jan: maintenance PMD-MTG-MTK ventilation units Fri 6 th 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 –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 ITS (old) ventilator in CR5 –Maintenance ventilation unit SG2 (Mon-Tue) 2/12/11ALICE winter shutdown schedule - A.Tauro 9

EN-CV-OP – pending Repair leak FB pipe: 1 day (compensatory measures tbd) Removal unused FB pipe (I-side). 1 day (need nacelle) 2/12/11ALICE winter shutdown schedule - A.Tauro 10

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 ). 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 Thu 12 th 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 13 th – No access UX25 –Major electrical perturbation affecting P2 for whole day 2/12/11ALICE winter shutdown schedule - A.Tauro 11

EN-EL 2/2 Consolidation 48V network (after incident 11 th Jan 2011). Date tbc –1 day no access to UX25 Maintenance power transformer EMT306/2X. Date tbc (Feb. ?) –Scheduled the same day as 48V –Will stop UX25 air extraction and injection (4h) – impact on access to be seen (Fernando) 2/12/11ALICE winter shutdown schedule - A.Tauro 12

EN-CV-BE New ITS dehumidifier unit in SX2 –Ducts installation : ongoing (SPIE) –Air handling unit delivery : week 51 –Electrical and control cubicle delivery : week 2 –Cabling and mechanical connection : from week 2 to week 5 –Start-up and commissioning : from week 6 to week 7 2/12/11ALICE winter shutdown schedule - A.Tauro 13

EN-CV-DC RP sampling: Dec 8 th TOF-PHOS-EMC-SPD. Installation PHOS circulator + replacement flowmeter + periodic maintenance: plant stopped from 9 th to 17 th Jan SPD. Periodic maintenance + put entire plant on UPS: plant stopped 1 day on Jan 6 th TRD. Periodic maintenance + replacement chilled water valve + preventive replacement pump + cleaning vacuum pump: plant stopped 2 days on Jan 5 th and 6 th TPC. Periodic maintenance + preventive replacement pump + include heaters in supervision + cleaning vacuum pump: pant stopped from 18 th to 20 th Jan HMPID. Periodic maintenance + preventive replacement pump: plant stopped 2 days on Jan 23 rd and 24 th TPC RR. Periodic maintenance + install new filters: plant stopped from Jan 25 th to Feb 2 nd SDD-SSD. Periodic maintenance + replacement pump: plant stopped from 3 rd to 9 th Feb 2/12/11ALICE winter shutdown schedule - A.Tauro 14

BE-ABP-SU (survey) With L3 doors open, requiring two full days before Xmas (preferably on Sat-Sun w50): –Zero measurement (SF, TPC feet, MNF valve, MNF) –Low Beta network update –C-side photogrammetry (EMCal) After each TRD insertion, requiring 2h inside MNF : –MNF valve and MNF, requiring 2h inside MNF At the end of TRD and EMCal, requiring three full days with both doors open (wk 5): –TRD modules, CAL frame photogrammetry, MNF valve, MNF, SF deformation, TPC feet Muon ST2-3-4 and TRG surveys in February 2/12/11ALICE winter shutdown schedule - A.Tauro 15

DAQ DAQ shutdown 21 st Dec mid-day DAQ start after cooling and power interventions, end wk 3 –Arrangements for individual LDCs can be organized (send a mail to 2/12/11ALICE winter shutdown schedule - A.Tauro 16

DCS Week 49 Dec. 8 morning: shutdown all DCS for UPS repair; restart a.s.a.p. (afternoon) –Profit from DCS stop to make backup ! Start (hardware) installation of new DCS cluster Week 50 Dec. 12–14: Operating system and PVSS upgrade –Reboots required, coordinated with detectors Dec. 15: New framework available for detectors –Detectors to validate functionality with new software Week Preparation of new DCS cluster DCS available during CERN End-of-Year closure –with usual access limitations and best effort support Week New DCS cluster available for detectors Expect all detectors to run on new cluster by week 5 2/12/11ALICE winter shutdown schedule - A.Tauro 17

TPC Take out capacitors on all A/C ROC 2/12/11ALICE winter shutdown schedule - A.Tauro 18

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. 2/12/11ALICE winter shutdown schedule - A.Tauro 19

Removal of FMD2 box ALICE winter shutdown schedule - A.Tauro Present situation Situation without the box. The blue cable tray should stay in place Cable ends 2/12/1120

Removal of FMD2 box Who: Borge What: The cables from the detector are disconnected and secured. The box and the patch panels are unscrewed and dismounted. Then the patch-panel and the cables should be moved aside and secured. Uncertain where to put the cable bundle and patch panels – very stiff bundle. When: 8 th December morning ALICE winter shutdown schedule - A.Tauro 2/12/1121

Removal of SSD-SPD boxes ALICE winter shutdown schedule - A.Tauro Present situation. The plate restricts the TPC access SSD box SPD box Situation without the SSD box Situation without the SSD and SPD boxes. Now the plate can be easily removed Plate 2/12/1122

Removal of SSD-SPD boxes Who: –SSD: Ton –SPD: Michel Morel What: –The SPD box is removed from the MNF. The only risk is to damage the fibers. –The SSD box is also removed from the MNF, and the cable trays from PP1 should be opened. The box cannot be taken away, therefore the cable from the detector + box will be displaced and attached to the beampipe table for some days –The plate is easily removable (4 screws), and this will be done by Yannick or Pieter ALICE winter shutdown schedule - A.Tauro 2/12/1123

Removal of V0-FMD1 Who: Yannick, Pieter, Werner and Borge What: disconnection and displacement of V0-FMD1. The detector will be parked inside the MNF for some days. The removal is a complex but known operation. The main risks for the equipment are related to the beampipe and the naked silicon sensors of FMD1. Both will need temporary protection once the detector is moved out, ALICE winter shutdown schedule - A.Tauro 2/12/1124

Schedule 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 –Tue: move V0-FMD1 to parking position (PMD already in parking position) –Wed-Fri: TPC A-13 (2 1/2 days) –Fri-Sat: move back and test V0-FMD1 Week 6: –Mon 6/2: survey of V0-FMD1 ALICE winter shutdown schedule - A.Tauro 2/12/1125

PMD Week 3 or 4: 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 9 -10: PMD Moves back to Final Position 2/12/11ALICE winter shutdown schedule - A.Tauro 26

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. 2/12/11ALICE winter shutdown schedule - A.Tauro 27

TRD 3 supermodules installation, cabling, commissioning (L3 access, A & C sides etc) –Arrival at CERN of Bernd & Co on 2 nd Jan. around 12:00 AM –Insertion sequence: –Possible to have transport on Sun.8 th 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) Pretrigger backup PSU installation and LV cable rearrangements (I/O rack and C-side in L3) BKF LV protection panel replacement (C-side in L3) Colling 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 2/12/11ALICE winter shutdown schedule - A.Tauro 28

EMC New rotator nose: installation and check end Dec/beginning Jan –Depending on delivery of nose to P2 Arrival at CERN of Manoel & Co on 22 nd Jan. 2/12/11ALICE winter shutdown schedule - A.Tauro 29

PHOS As from Dec 8 th (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 5 th 2/12/11ALICE winter shutdown schedule - A.Tauro 30

MTK Repair bus bars on slats: ST4, ST5 and ST3 (only limited to the ones accessible) –Week 50 (after 17:00); –Week 2 to week 9 Change one quadrant in ST2 (3 Right Bottom); –Week 4 (Monday and/or Tuesday) Connection check in ST1 (without opening); –January: no day fixed yet… 2/12/11ALICE winter shutdown schedule - A.Tauro 31

MTG Maintenance Front-end Electronics, mostly spare installation: –19 th to 21 st 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 with theodolite and photogrammetry, survey of the other 6 half-planes with only theodolite measurements –Week 5. Nacelle needed SAA3 Shielding - MTR in closed position –Week 6 (tbc) - can some concurrent activity in the MTR be carried out (i.e. regional electronics)? General global check –One week (tbc) 2/12/11ALICE winter shutdown schedule - A.Tauro 32

ZDC Move detectors by 1.36m towards IP to solve the problem of collimator shadow 2/12/11ALICE winter shutdown schedule - A.Tauro 33

Status of gas systems during Christmas period MTR  Ar backup MCH  CO 2 backup PMD  Ar backup TOF  C 2 H 2 F 4 backup ? TRD  On. Will need about 40 m 3 of CO 2 for flushing 3 new TRD SMs TPC  On PHO  N 2 flushing HMP  Ar backup inlet flushing 2/12/11ALICE winter shutdown schedule - A.Tauro 8/12: stop flammable gases i-C4H10, CH4 and H2 34

Other activities TRD scaffolding: 22 nd Dec. SAA3 extension (February) Release all TOF crates supports and Decoupling TPC-Space-Frame –Yannick, week 51 Disconnect/reconnect SPD pipes Pull cable DSS-SPD cooling plant Modification BBF (EMCal access) Install C-side ladder + trap Picture ALICE (A.Saba) –Week 5 (Wed-Fri. Tbc) Replacement CR3 racks and removal air conditioning CR2-3-4 –From week 4 Installation accelerometers Connect N2 line to SG2 dewar (Iniziative) Test Dipole bus bars (2h, Pascal) with IR camera. Tbs in February –Need to remove plexi protection 2/12/11ALICE winter shutdown schedule - A.Tauro 35

DAY-BY-DAY SCHEDULE DECEMBER /12/11ALICE winter shutdown schedule - A.Tauro 36

2/12/11ALICE winter shutdown schedule - A.Tauro Activities in UX25 - Week 49 – 8/12 Thursday Access after 17:00 ITECO HAULOTTE VAC RP samples PX24 shielding: blocks FMD-2 box Stop flammable gases i-C4H10, CH4 and H2 Borge (AM): removal FMD2 box Reinstallation crane electronics (9:30) + load test cavern cranes (20t) 7/12 PM: adjustment chilled water flow in the cavern Shutdown all DCS for UPS repair (AM) PHOS After 17:00 37

2/12/11ALICE winter shutdown schedule - A.Tauro Activities in UX25 - Week 49 – 9/12 Friday Access after 17:00 PX24 shielding: beams (35t) VAC TPC Capacitors PHOS After 17:00 38 SPD Disconnect pipes (after 17:00)

2/12/11ALICE winter shutdown schedule - A.Tauro Activities in UX25 - Week 49 – 10/12 Saturday Access after 17:00 MNF shielding Stabilizers No access CR1-5 during lifting up of 5 big beams Stabilizers PHOS After 17:00 39

2/12/11ALICE winter shutdown schedule - A.Tauro Activities in UX25 - Week 49 – 11/12 Sunday 40

2/12/11ALICE winter shutdown schedule - A.Tauro Activities in UX25 - Week 50– 12/12 Monday Access after 17:00 LV156 MNF shielding TPC Capacitors Rinsing of mixed water in UX25 cavern (Philippe) (whole week) Repair bus bars on slats: ST4, ST5 and ST3 MTK ITECO 41

2/12/11ALICE winter shutdown schedule - A.Tauro Activities in UX25 - Week 50– 13/12 Tuesday LV156 MNF shielding TPC Capacitors Access after 17:00 Test general secours: stop general services for 10’ MTK 42

2/12/11ALICE winter shutdown schedule - A.Tauro Activities in UX25 - Week 50– 14/12 Wednesday LV156 MNF shielding L3 ventilation Access after 17:00 Maintenance lift CR1-4 Lift stopped whole day (7:00 – 16:00) MTK 43

2/12/11ALICE winter shutdown schedule - A.Tauro Activities in UX25 - Week 50– 15/12 Thursday MNF shielding (green bridges) Open I-side door LV156 TPC Capacitors Access after 17:00 MTK 44

2/12/11ALICE winter shutdown schedule - A.Tauro Activities in UX25 - Week 50– 16/12 Friday Open O-side door LV156 TPC Capacitors Test of Dipole flooding alarm MTK Green fences 45

2/12/11ALICE winter shutdown schedule - A.Tauro Activities in UX25 - Week 50– 17/12 Saturday TPC Capacitors Test auto-transfert Survey 46

2/12/11ALICE winter shutdown schedule - A.Tauro Activities in UX25 - Week 50– 18/12 Sunday Survey 47

2/12/11ALICE winter shutdown schedule - A.Tauro Activities in UX25 - Week 51– 19/12 Monday TRD infra. Access after 17:00 (tbc) TPC Capacitors MTG Maintenance Front-end Electronics TPC Capacitors HAULOTTE Release all TOF crates supports (Yannick- Samuel) 48

2/12/11ALICE winter shutdown schedule - A.Tauro Activities in UX25 - Week 51– 20/12 Tuesday TPC Capacitors MTG TPC Capacitors Release all TOF crates supports (Yannick- Samuel) 49

2/12/11ALICE winter shutdown schedule - A.Tauro Activities in UX25 - Week 51– 21/12 Wednesday DAQ shutdown (PM) TPC Capacitors MTG TPC Capacitors Decoupling TPC- Space- Frame (Yannick- Samuel) 50

2/12/11ALICE winter shutdown schedule - A.Tauro Activities in UX25 - Week 51– 22/12 Thursday TRD scaffolding Decoupling TPC- Space- Frame (Yannick- Samuel) CERN official holiday 51

2/12/11ALICE winter shutdown schedule - A.Tauro Activities in UX25 - Week 51– 23/12 Friday CERN official holiday 52 Transport TRD6 into cavern

Visits - Dec VIP: Stjepan Matin from 24Hours newspaper –9 th Dec. (possibly 11:45 – 12:30). Resp.: S.Tesauri 7 people –17 th Dec. (1t 17:00). Resp.: C.Bortolin 50 students from the University of Bologna Chemistry Department –17 th Dec. Resp.: R.Nania VIP: Kim Steele, New York Times Review –21 st Dec. Resp.: D.Hatzifotiadou 2/12/11ALICE winter shutdown schedule - A.Tauro 53

Visits – Jan-Feb TI operators –11 th Jan. (14:00). Resp.: A.Augustinus VIP: President of the French Centre national de la recherche scientifique (CNRS) –16 th Jan. Resp.: Y.Schutz Group of Italian students (42 students + 4 teachers) –19 th Jan (tbc). Resp.: C.Bortolin Group of 40 students + 4 teachers from Cagliari –26 th Jan. Resp.: C.Cicalo VIP: Members of the Comitato per il Progetto Culturale (IT) –26 th Jan. Resp.: L.Pedroso German School Geneva, 9th grade, i.e years old, 15 pupils plus teacher –30 th Jan. Resp.: R.Renfordt 50 students from university of Tübingen –2 nd Feb. Resp.: H-R.Schmidt Vice-Chancellor of Birmingham University and 7 senior figures from industry –15 th Feb. (12:00 to 13:00). Resp.: D.Evans Group of 38 students + 4 teachers from Cagliari –21 st Feb. Resp.: C.Cicalo 2/12/11ALICE winter shutdown schedule - A.Tauro 54

AOB As from now ADI replaced by IMPACT –Please do not submit anymore ADI requests –ADI no longer used –IMPACT is the new CERN wide tool –See Fernando’s tutorial 2/12/11ALICE winter shutdown schedule - A.Tauro 55