1. M. Gilchriese Pixel Update October 3, 2005

2. M. Gilchriese 2 Outline Barrel status and repair strategy Revised ATLAS installation schedule Finishing pixel work at LBNL –Disk/endcap schedule –Service panels and related Work at CERN

3. M. Gilchriese 3 Barrel Staves Stave loading started about 1 year ago. –44/112 (39%) staves have been loaded (one partially) till now; First problem (April): MCC wire-bonds break. Reason seems contamination of MCC surface by SE4445 used to glue MCC to FlexHybrid (Maurice figured this out). All MCC encapsulated must be rebonded.. Bonn is the only site who developed the technique. –28 (7 Wu, 8 CPPM, 13 Genova) staves in total have MCC encapsulation. –3 done. Note this affects disks also, repairs in progress at LBL Second problem (May): Omega delamination from TMT. Loading stopped for one month. –2 staves have been found to be delaminated; –Peek collar designed and successfully applied to several bare and loaded staves. –Strength to delamination increase of ~6x for pull/torque. Third problem (August Crisis): Al pipe corrosion… production halted

4. M. Gilchriese 4 MCC problem

5. M. Gilchriese 5 Inspection Clean: 32 stavesSalted: 28 staves Nickel peals off: 18 staves

6. M. Gilchriese 6 Corrosion Galvanic corrosion from nickel-aluminum interface, nickel necessary to braze on fittings Thermal tests done using water-antifreeze mixture and insufficient drying in many cases In addition to visual signs of corrosion, leaks develop. About ½ of staves looked at and 15% leak, in some cases with a dozen or more holes caused by corrosion. Develops over time => replace all stave pipes Note that no corrosion has been seen in production disk sectors made at LBL – different process, no water

7. M. Gilchriese 7 More corrosion

8. M. Gilchriese 8 Repair Strategy 43 loaded staves. Insert another pipe inside the existing pipe and inject “glue” with good thermal properties but there will be an increase in the module temperature. Glue on fittings. Pipes of appropriate diameters ordered, some preliminary tests but not proven yet. Staves without modules. Dismantle staves. It turns out that the gluing was not great so using tooling + local heat can take apart stave, replace pipe and put back together. Demonstrated on one stave, tooling, procedures in progress. Make new staves, particularly for the innermost layer. New materials ordered or about to be In addition, change to fitting scheme developed at LBNL for everything – no nickel or dissimilar metals.

9. M. Gilchriese 9 Who is Doing What Insert pipe in loaded staves. Marseille and CERN but exact responsibilities TBD –Qualify process using dummy staves with heaters. What is increased temperature and pressure drop –Develop procedures Dismantle and reassemble. Genoa. Likely to yield fixed staves first. Build new staves –Material procurement: LBL and Germany –Machining of thermal management tiles: LBL and Wuppertal –Assembly: company(IVW) in Germany and Wuppertal

10. M. Gilchriese 10 Resuming Module Loading The critical path is to produce and qualify new aluminum tubes. Marseille with some help from LBL Maybe can resume loading of modules in December but guess that more likely January before really ramped up Must increase by 1.5-2 rate of stave loading and testing, which is done at Marseille, Wuppertal and Genoa. Plans how to do this but will be a challenge Goal is to reach loading of 4 staves per week and testing of 5 per week.

11. M. Gilchriese 11 Schedule version 7.09 Reasons for change? –Delays accumulated with ID services (especially pipes on barrel calorimeter) –Barrel calorimeter moves to z=0 on 26 October. Installation of ID services (type II/III) follows – critical path for all ATLAS. –Field map of solenoid needs both EC calorimeters –Install pixel system as late as possible. Off-detector systems need to be in place for barrel then end cap commissioning ID barrel and EC integration should keep working to previous RFI dates

12. M. Gilchriese 12 Critical ID dates Integration & tests in SR1 complete (Heinz P.) Previous installation date New 7.09 installation date Change in installation date Barrel16 March 061 March 0611 May 0610 weeks EC-C26 June 0625 May 066 July 066 weeks EC-A21 July 0630 June 065 August 065 weeks PixelsNot yet updated5 Oct 0613 Feb 074.5 months

13. M. Gilchriese 13 B-calo today C

14. M. Gilchriese 14 B-calo 26 October 05

15. M. Gilchriese 15 B-caloC-calo TAS-C TGC1 26 April 06 B-map

16. M. Gilchriese 16 B-caloC-calo TAS-C TGC1 B-ID 11 May 06

17. M. Gilchriese 17 B-caloC-calo TAS-C TGC1MDTTGC2 B-ID 30 June 06

18. M. Gilchriese 18 B-caloC-calo TAS-C TGC1MDTTGC2 B-ID 3 July 05

19. M. Gilchriese 19 B-caloC-calo TAS-C TGC1MDTTGC2 B-ID C-ID 5 July 06

20. M. Gilchriese 20 B-caloC-calo TAS-C TGC1MDTTGC2 B-ID C-ID 6 July 06

21. M. Gilchriese 21 B-caloC-calo TAS-C TGC1MDTTGC2 B-ID C-ID 10 July 06

22. M. Gilchriese 22 B-caloC-calo TAS-C TGC1MDTTGC2TGC3 B-ID C-ID ECT-C SWC JD 19 December 06

23. M. Gilchriese 23 B-caloC-calo TAS-C TGC1MDTTGC2TGC3 B-ID C-ID ECT-C SWC JD

24. M. Gilchriese 24 B-caloC-calo TAS-C TGC1MDTTGC2TGC3 B-ID C-ID ECT-C SWC JD

25. M. Gilchriese 25 B-caloC-calo TGC1MDTTGC2TGC3 B-ID C-ID ECT-C SWC JD JF-C 30 May 07 EO-C TAS-C

26. M. Gilchriese 26 Installation ‘animation’ – Side A Partial subset with ID highlights…

27. M. Gilchriese 27 B-calo 26 October 05 A

28. M. Gilchriese 28 B-caloA-calo B-map 25 April 06 Mu-B

29. M. Gilchriese 29 B-caloA-calo B-ID 11 May 06

30. M. Gilchriese 30 B-caloA-calo B-ID 12 May 06

31. M. Gilchriese 31 B-caloA-calo B-ID 15 May 06

32. M. Gilchriese 32 B-caloA-caloECT-A B-ID 23 May 06

33. M. Gilchriese 33 B-caloA-caloECT-A B-ID TAS-A 2 August 06

34. M. Gilchriese 34 B-caloA-caloECT-A B-ID A-ID 4 August 06 TAS-A

35. M. Gilchriese 35 B-caloA-caloECT-A B-ID A-ID TAS-A 5 August 06

36. M. Gilchriese 36 B-caloA-caloECT-A B-ID A-ID TAS-A

37. M. Gilchriese 37 B-caloA-caloECT-A B-ID A-ID TAS-A

38. M. Gilchriese 38 B-caloA-caloECT-A B-ID A-ID TAS-A

39. M. Gilchriese 39 B-caloA-caloECT-A B-ID A-ID TAS-A TGC1 14 September 06

40. M. Gilchriese 40 B-caloA-caloECT-A B-ID A-ID TAS-A TGC1 23 October 06 Side A “closed”. Hope to have access to end of ID EC-A.

41. M. Gilchriese 41 B-caloA-caloECT-A B-ID A-ID TAS-A TGC1

42. M. Gilchriese 42 B-caloA-caloECT-A B-ID A-ID TAS-A TGC1 MDT TGC2 TGC3 Lots of steps for big wheels to get to here…

43. M. Gilchriese 43 B-caloA-caloECT-A B-ID A-ID TAS-A TGC1 MDT TGC2 TGC3 Reopen to get pixels in…

44. M. Gilchriese 44 B-caloA-caloECT-A B-ID A-ID TAS-A TGC1 MDT TGC2 TGC3

45. M. Gilchriese 45 B-caloA-caloECT-A B-ID A-ID TAS-A TGC1 MDT TGC2 TGC3 pixel 13 February 07

46. M. Gilchriese 46 B-caloA-caloECT-A B-ID A-ID TAS-A TGC1 MDT TGC2 TGC3 pixel

47. M. Gilchriese 47 B-caloA-caloECT-A B-ID A-ID TAS-A TGC1 MDT TGC2 TGC3 pixel

48. M. Gilchriese 48 B-caloA-caloECT-A B-ID A-ID TAS-A TGC1 MDT TGC2 TGC3 SWA JD pixel

49. M. Gilchriese 49 B-caloA-caloECT-A B-ID A-ID TAS-A TGC1 MDT TGC2 TGC3 SWA JD pixel

50. M. Gilchriese 50 B-caloA-caloECT-A B-ID A-ID TGC1 MDT TGC2 TGC3 SWA JD JF-A pixel 20 June 07 EO-A TAS-A Used to be April 2007

51. M. Gilchriese 51 Overall Disk Status

52. M. Gilchriese 52 Schedule Side C Side A

53. M. Gilchriese 53

54. M. Gilchriese 54 Service Panels Production ongoing in 77A Goal is to complete production by June 2006 but don’t have enough experience yet to make a credible schedule But rate will have to increase to meet June 2006 goal Note that some assembly(optical fibers) will only take place at CERN Schedule is tight, even with revised installation schedule.

55. M. Gilchriese 55 LBNL Work at CERN in Next Year Finish Pixel Support Tube installation Receive disks, use first for extended system test of 10% of system with mostly real components(cooling, readout, ….) Receive service panels, install fibers and checkout Services installation – a huge job, some LBNL role Assist in barrel repair and later barrel integration(need to double rate here also) In general, EU groups will be very busy with barrel rescue, try to offload

56. M. Gilchriese 56