1. TS1 preparatory meeting 3.6.2015 A.Tauro

2. General information TS1 week 25: 15 to 19.6 LHC beam stops on Monday morning at 6:00 AM. Cavern access starts at 7:30 AM, after the RP check. – SL  switch off both magnets at 6:00 AM – RP check  Andre + Klaus – Confined space tour inside L3 around 9:30 (tbc) Access mode: general (no token needed) Lift: no intervention foreseen as maintenance performed on 26.5 (valid 6 weeks) The underground access will stop on Friday at 17:00 PM – We need 1 hour for the patrol on Friday: between 13:00 and 14:00  no access during patrol Tunnel access (P2): from Monday midday to Friday midday. NO access to triplets area (ADC) 03/06/15TS1 preparatory meeting2

3. Reminder about safety courses From now onwards the « CERN - Beam Facilities » will be needed for access requests to ALI-UX and ALI UX- GUI. All person including those presently having access to ALI-UX and ALI UX-GUI will lose the access right, if they have not completed successfully the « CERN - Beam Facilities » e-learning before the final migration date. Therefore please take a moment to complete the « CERN - Beam Facilities » e-learning course at http://sir.cern.ch as soon as possible. 03/06/15TS1 preparatory meeting3

4. TPC RCU2 DAY-BY-DAY PLAN (CHRISTIAN) 03/06/15TS1 preparatory meeting4

5. Morning shift (06:00 – 14:00) –Confined space training (30 min) –Install lights –Install access platforms on A side –Disconnect and displace SPD box (4 hours) –Disconnect and displace FMD2 RCU box (4 hours) –Start working on 2 sectors on A side (A15) –Start working on 3 sectors on C side Evening shift (14:00 – 22:00) –2 teams on A side modify 3 sectors –Finish A15 –2 teams on C side modify 3 sectors Night shift (22:00 – 03:00) –1 team on A side modifies one easy sector –1 team on C side modifies one easy sector 5

6. Morning shift (06:00 – 14:00) –Disconnect and displace SSD box (4 hours) –3 teams on A side modify 4 sectors –Finish A14 –2 teams on C side modify 3 sectors Evening shift (14:00 – 22:00) –2 teams on A side modify 3 sectors –Finish A13 –2 teams on C side modify 3 sectors Night shift (22:00 – 03:00) –1 team on A side modifies one easy sector –1 team on C side modifies one easy sector 6

7. Morning shift (06:00 – 14:00) –3 teams on A side modify 4 sectors –Finish A12 –2 teams on C side modify 3 sectors –Reconnect and test FMD2 RCU box? Evening shift (14:00 – 22:00) –2 teams on A side modify 2 sectors –Finish A11 –2 teams on C side modify 4 sectors –Test and finish other sectors Night shift (22:00 – 03:00) –1 team on A side finishes things –1 team on C side finishes things –Re-connect SSD box (4 hours) 7

8. Thursday –Test and finish all sectors –Re-connect SPD box (4 hours) Friday –Test and finish 8

9. 9 ShiftExpertHelperCoolingAlu barsTestsWatcher Mon 6-14Antoine, Yannick, Gregory, Philippe Esther, AlexanderChiloDidierChengxinChilo Mon 14-22Thomas, Tuva, Christian, Pieter, Rainer Sedat, Yannik, Johan, Renato Meg, Laís, SigvexTorstenMeg Mon nightVyto, YukoSupraja, MartinTylerxx Tue 6-14Antoine, Yannick, Gregory, Philippe Esther, Chilo, Ketil, Christine Alexander, OlaDidierChengxinAlexander Tue 14-22Thomas, Tuva, Christian, Pieter Sedat, Yannik, Meg, Renato, Johan Rainer, Laís, SigvexTorstenRainer Tue nightVyto, YukoTyler, MartinSuprajaxx Wed 6-14Yannick, Thomas, Gregory, Philippe Esther, Alexander, Ketil, Christine Chilo, OlaDidierChengxinChilo Wed 14-22Antoine, Christian, Rainer, Tuva Sedat, Meg, Renato, Johan Yannik, Laís, SigvexTorstenYannik Wed nightVyto, YukoSupraja, MartinTylerxx Thu 6-14Antoine, YannickKetil, AlexanderEsther, OlaDidierChengxinEsther Thu 14-22Thomas, TuvaSedat, Yannik, JohanRainer, LaísxTorstenRainer Shift leader A side Shift leader C side Not yet final

10. TPC other Laser maintenance – Preventive maintenance of lasers. Check performance and status of flash lamps. If necessary, replace flash lamp(s), tune energies and alignment. – For alignment, it is necessary to shoot laser into the TPC. This will be coordinated with the TPC team at a time when nobody is working on the TPC. Gas (PH-DT): work on TPC pump and frequency variator (CR5) 03/06/15TS1 preparatory meeting10

11. ITS Visual inspection of the ITS cooling plants and power supply racks SPD cooling work – RP check (Mon) – Filling tank 03/06/15TS1 preparatory meeting11

12. ITS 03/06/15TS1 preparatory meeting12  Monday PM  Tuesday PM  Thursday

13. 03/06/15TS1 preparatory meeting13 CV-DC to put in SDBY the TPC FEE and SPD plants on Monday early morning (7:00 AM)

14. TRD/TOF TRD: Ethernet + optical fibers checks inside L3 – Thursday or Friday during the day TOF: replacement TDCs Overnight or Thursday or Friday during the day Andrea to see with Bologna people and let us know 03/06/15TS1 preparatory meeting14

15. EMCal/DCal Understand and fix why EMCAL (SRU) voltages trip at configuring EMCAL STU Fix LED box of one of EMCAL SMs. C-side top (SMC1) Reprogramming of TRUs Swapping EMCAL STU DDLs Replacing (about 10) FECs of EMCAL and DCAL Connecting DCAL STU back to PHOS power supply EMCal: work overnight Mon-Wed + during day Thu-Fri DCal: anytime, must be coordinated with PHOS 03/06/15TS1 preparatory meeting15

16. V0 Access for V0 FEE firmware upgrade (rack C04) 03/06/15TS1 preparatory meeting16

17. MCH Replace gas pipes on stations 4 and 5 (at the bottom off the chambers): no need to open the chambers Check LV connection stability on CH8R G7 (at the LVPS, filter box levels…): no need to open the chambers Visual check of mechanics on station 1 03/06/15TS1 preparatory meeting17

18. MTR 3 gas gaps (MT11-2; MT21-6; MT12-line1) OUTSIDE to be checked/repaired/changed Nacelle needed (EDH request #6037399 from low beta platform to UX25 side C level 1 outside). Since there is not access through PX24, the gas gaps are to be carried down with the LHC elevator at P2 (LHC-TNL access) and the passage through the UP25 chicane (YCAMM01) is needed (gas gap is approx. 2,7 m long) – Answer from LHC coordination: the best is to perform the activity on Tuesday 16 th. On Wednesday 17 th the UP25 MAD is in maintenance and a patrol is scheduled on Wednesday afternoon. The cables on RPCs are first disconnected; then the gas gap is lowered using dedicated electrical hoist (while guided by persons on the nacelle); the gas gap is then checked in UX25 side C level 1, eventually repaired or changed with new one. The gas gaps are then remounted on the Trigger mechanical frame and reconnected Installation/test of USB blaters and micro-PCs (upper gangways, close to muon trigger racks) for the remote programming of the 16 Regional card firmware (C. Renard, JL Beney). In coordination with Andre Augustinus et al. Minor FE electronics maintenance (Ph. Rosnet) 03/06/15TS1 preparatory meeting18

19. DAQ/detectors activities TPC: swap a pairs of links (RCU 0 and 1) inside the module of TPC A14 placed in the Mini-Frame patch-panel. This activity will be coordinated with the RCU replacement works. The work will be made by Joan with the help of Filippo for what concern the coordination with TPC activity. – Small interference with TPC A-side work – Will be done on Tuesday EMCal: swap the two fibers of EMCAL STU in the module of patch-panel located in L3, to have the correct polarities of fibers in CR1 (Martin and Filippo) – Will be done on Thursday PHOS: inspection and repair of the PHOS STU DDL fiber inside L3 (max. 1 hour) – Will be done on Thursday 03/06/15TS1 preparatory meeting19

20. Other interventions TE-VSC: close/open manual valve inside miniframe – Close: Monday morning at 8:00 AM – Open: Friday afternoon after 14:00 EN-HE: reinstall/remove crane electronics – Reinstall: Monday morning – Remove: Friday 14:00 GS-ASE: – Gas detection maintenance (SG2, CR5 and UX25)  transparent – UP25 MAD maintenance  Wed. Will drop the patrol IT-CS: – TETRAPOL measurements (A TETRAPOL radio will be used to measure signal strength and other parameters. Nothing will be physically installed or modified in the tunnel/experiment) – IT-CS: cut GSM network. There will be a max. 10 min cut of the GSM network at 7h30 on the Monday morning, and a second cut after their tests, during the afternoon. For the 2 nd cut they will call Andre. 03/06/15TS1 preparatory meeting20

21. Other interventions EN-CV-OP: – Intervention EN-CV (sand filter) in UW25 – ITS ventilation unit – test control (1/2 day)  Monday PM – SG ventilation SW update  will stop the flammable gases, date tbd EN-EL and EN-CV: – Stop circuit breaker ESD1/2E, scheduled on Tuesday morning – Will affect cavern/magnet ventilation and flammable gases (2 x 30” stops at 8:30 and 11:00) EN-EL: – Maintenance emergency lights UX25 03/06/15TS1 preparatory meeting21

22. DCS Monday morning (09h - 13h) for maintenance. The major activities will be: – Installation of new file servers (will bring additional redundancy) – Restart of all WinCC projects We do not plan any patches or other updates to the software. The implication is that DCS will be unavailable during (most of) that morning. We will assure the availability for the rest of the TS (notably for the TPC tests). 03/06/15TS1 preparatory meeting22

23. CTP Change a CTP VME L0 board Intervention in one VME crate This would mean 2 workers at C-side racks for ~ 4 hours, preferably on Monday 03/06/15TS1 preparatory meeting23

24. P2 technicians activities Replace lights on Monday morning (Philippe) Installation of platform on Monday morning (Yannick) Install 2 chairs + 1 table in the watcher corner on Monday morning (Transport) Install fence above L3 busbar (SPIE, Mon) SPIE: – Connection new racks (C19,C33,C34) in C-area (smoke detection, Thermoswitch, ELMB) – Cabling secondary network outlets for Netgear redundancy Installation beampipe/AD thermocouple readout PLC in rack C29 03/06/15TS1 preparatory meeting24

25. Visits Tuesday 16 June in the morning (DK Council members) – Protocol office asks us whether we can take care of it 03/06/15TS1 preparatory meeting25

26. IMPACT so far received 03/06/15TS1 preparatory meeting26

27. AOB PMD survey  TS2 Install magnetic filter UX25 mixed water network  TS2 Vibration measurements (TPC)  TS2 03/06/15TS1 preparatory meeting27

28. 28

29. Access to sectors A13 To reach this sector one needs to remove the boxes in front of either A11/A12 or A14/A15

30. Access to sectors A11-12 The SSD/SPD boxes in front of A11/A12

32. Access to sectors A14-15 FMD2 box in front of A14/A15

34. On the TPC sectors: 1.Open sectors and secure blue covers 2.Drain RCU cooling loop 3.Remove mounting bars 4.Disconnect cooling pipes, fibers, cables from RCU1 (DDL stays connected for RP0 and 1) 5.Protect fibers 6.Remove RCU1 and backplanes 7.Bring material outside magnet 8.Install new backplanes 9.Receive new RCU2 boards with cooling plates. Check position label 10.Install new RCU2 11.Cable and connect 12.Put back alu bar 13.Fast connectivity test (DCS, DDL2, control bus, data bus) 14.Close sector 34

35. In parallel outside 1.Receive innermost mounting bars, RCU1 and backplanes 2.Store old backplanes 3.Modify innermost mounting bars in workshop 4.Remove top cooling plate from RCU1 boards (4 screws) 5.Mount these cooling plates on RCU2 boards 6.Add label (Position!) 35

37. Avant le démontages des cartes RCU préparer les accès (plateformes)cotes AI et AO

38. DECONNECTER LE COOLING 4 TUBES PAR CHAMBRE

39. DEMONTAGES DES CAPOTS 2 PAR CHAMBRE(TOTAL 72)

40. DECONNECTER LE COOLING DES CARTES RCU

41. DEMONTAGES DES 6 BARRES RCU PAR CHAMBRES

42. DECONNECTER LES CABLES + FIBRE

43. DEMONTAGES DES 6 CARTES RCU PAR CHAMBRE (TOTAL 216 RCU)

44. DEMONTAGES DES BACKPLANES 24 PAR CHAMBRE (total 864)

45. BACKPLANES 24 PAR CHAMBRE 6 GRANDES A DROITE 6 PETITES A DROITE 6 GRANDES A GAUCHE 6 PETITES A GAUCHE (TOTAL 864)

47. Unmodified bar in the back, modified in the front