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Report of extended tehnical stop activity and Barrel HW alignment

Report of extended tehnical stop activity and Barrel HW alignment. Szillási Zoltán on behalf of the HW Muon Alignment Group. (ATOMKI,Debrecen). Muon Barrel Workshop, February 24, 2011. This project is supported by the Hungarian National Research Fund (OTKA) No.: NK67974. Outline.

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Report of extended tehnical stop activity and Barrel HW alignment

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  1. Report of extended tehnical stop activity andBarrel HW alignment Szillási Zoltán on behalf of the HW Muon Alignment Group (ATOMKI,Debrecen) Muon Barrel Workshop, February 24, 2011. This project is supportedbytheHungarian National Research Fund (OTKA) No.: NK67974

  2. Outline • LinkDisk repositioning • Z-study of the Barrel • (very) preliminary data on the startup barrel geometry based on HW Ali 2011.02.24. Muon Barrel WorkShop 2

  3. LinkDiskrealignment

  4. HW Interventions in January 2011 (from Gervasio) • Jan 6: • LV problems in both endcaps until 15.30 • LOTO problem: cause/person still unknown… under investigation from LV team • Adjust LD- • Four AR lines get to YE-1 TPs • Fixed two link electronic boards • One ELMB for BD- and one Power Card in YB-2 for line -315 • Jan 7: • Test insertion of ½ T1: near-side • 10:30 LD- moves again! • See next slide • LD- has unwanted friction • Test SLM lines in YE-: everything OK • 16:30 Realign LD- again • Loose LV: no more readout 2011.02.24. Muon Barrel WorkShop 4

  5. HW Interventions in January 2011 • Jan 7: • REALIGNED LD- (a second time) in the afternoon • Jan 8: • Test SLM lines again in YE-: everything OK • Jan 10: • No LV, CMS wide: no more readout • Jan 14-18: • T1+ installation • NO LV, no readout of LD+ or SLM+ 2011.02.24. Muon Barrel WorkShop 5

  6. State after Jan 7 • LD- • Four AR lasers reach YE-1 after final adjustment Jan 7 • Link electronics • Apparently both fixes went OK: no more crashes so far • SLM- • All SLMs go across both both T1 halves • Line SLM 1-4 in YE-3 was temporarily blocked, so this one not really tested but suspect OK • LD+ and SLM+ • All T1 installation happened with no LV: no readout • CMS chose to take this risk a few months back • Can only hope we will find everything OK when LV is restored Positive side has been tested since and it is OK 2011.02.24. Muon Barrel WorkShop 6

  7. State NOW • LD- • Four AR- lasers reach YE-1 at 0 T • Four AR- lasers reach YE-1 at 3.8 T !!! • Reco of Link at both ends now possible at 0T and 3.8T • See status talk • Link electronics • ELMB in YB0 still causes problems (we need to run continuously for several days for the card to send errors) • This is completely transparent for Link: our data taking script simply reinitializes the card when this happens with zero impact on link data • The YB-2 problem was serious but this was fixed fine 2011.02.24. Muon Barrel WorkShop 7

  8. AR- lasers  YE-1 @ 3.8T 2011.02.24. Muon Barrel WorkShop 8

  9. LD- readjustment (from Celso) • Since yesterday (2011.02.10) we are at Full Field back again: B=3.8T • Our distancemeters indicate a good closing of the detector: Asymmetry after incident Symmetry recovered! 2011.02.24. Muon Barrel WorkShop 9

  10. Z-study of the Barrel YB±2 wheelsafterthe magnet ramp (Noemi Beni)

  11. Z movement of YB±2 2011 long Movements of the Z-bar LEDs in the Z direction. YB-2 YB+2 1.5mm 2mm 15° 15° Ref 3888 @0T (range 2011. Feb 03-21) 1.1mm 1.5mm 75° 75° 1.5mm 1.5mm 135° 135° 1.5mm 2mm 195° 195° 2.6mm 2.4mm 255° 255° 0T 0T 0T 0T 2.5mm 2.1mm 1T 1T 2T 2T 315° 315° 3.8T 3.8T Something new!!! 2011.02.24. Muon Barrel WorkShop 11

  12. Phi movement of YB±2 2011 long Movements of the Z-bar LEDs in the Phi direction. YB-2 YB+2 0.1mm 0.2mm 15° 15° 0mm Ref 3888 @0T (range 2011. Feb 03-21) 0.2mm 75° 75° 0.2mm 0.1mm 135° 135° 0.3mm 0.1mm 195° 195° 0.1mm 0.5mm 255° 255° 0T 0T 0T 0T 0.4mm 0.5mm 1T 1T 315° 315° 2T 3.8T 2T 3.8T 2011.02.24. Muon Barrel WorkShop 12

  13. Z-movement of YB±2 are compatible with the last magnet cycle no long term (~2months) relaxation effect is seen 2011.02.24. Muon Barrel WorkShop 13

  14. Phi-movement of YB±2 are compatible with the last magnet cycle no long term (~2months) relaxation effect is seen 2011.02.24. Muon Barrel WorkShop 14

  15. Phi movement of YB±2 2010 & 2011 2011 first & 2010 last 2010 first Interpretation of the measured data: 75° 75° 135° 135° 15° 15° YB+2 YB-2 195° 195° 315° 315° 255° 255° • from Phi displacement plot • the arrows don’t show absolute values • the arrows are the same for the last magnet ramp up in 2010 and 2011 2011.02.24. Muon Barrel WorkShop 15

  16. Z movement 2010 & 2011 2011 first & 2010 last 2010 first Interpretation of the measured data: ViewfromNearside 75° YE+ YE- YE- YE+ YB+2 YB+1 YB0 YB-1 YB-2 15° 315° Viewfrom Far side YB+2 YB+1 YB0 YB-1 YB-2 135° 195° • from Z displacement plot • the arrows don’t show absolute values • the arrows are the same for the last magnet ramp up in 2010 and 2011 255° 2011.02.24. Muon Barrel WorkShop 16

  17. (very) preliminarydataontheinitial 3.8T geometry of the Barrel

  18. ”Missing” chambers New dataset from run No 3981 (2011.02.13. 10:36-13:02) has been choosen. Measurement is coordinated with the Link and EndCap Only qualitative results yet! 2011.02.24. Muon Barrel WorkShop 18

  19. 3981 vs 2800 (blessed) (thanks to Aysen!!!) Translation magn 200x Rotation magn 200x New problem! To be checked Something in 2800? Due to a missing MAB Known probem (can be cured)! 2011.02.24. Muon Barrel WorkShop 19

  20. 3981 vs 2800 (blessed) YB-2 YB-1 YB0 Translation magn x200 Rotation magn x200 YB+2 YB+1 Missing MAB +1/9

  21. Plans • Finalize 3981 asap and bless • Comparision of relative movements of 3.8T-0T wrt Survey is ongoing – our results are foreseen in a week • APE analysis started (see Gervasio’s talk) 2011.02.24. Muon Barrel WorkShop 21

  22. Conclusions • LinkDisk repositioning went well • Z-study of the Barrel – no long term relaxation seen • (very) preliminary data on the startup barrel geometry based on HW Ali – minor differences seen wrt. 2800

  23. Backup slides

  24. Recall of blessing 2800

  25. ”Missing” chambers Wheel/Sector/Station • -2/11/4 • -1/13/4 • -0/14/4 • +1/7/4 Can’t measure any LED (communication problem with chamber). • +2/1/2 Can’t measure any LED (communication problem with chamber). • +2/1/4 • +2/2/4 • +2/4/4 The following are left uncorrected due to bad fit from Luca: • Wheel -2 Sector 5 MB4 • Wheel 0 Sector 13 MB4

  26. Comparison 2800 vs 1125 (thanks to Aysen!!!) Translation magn 200x Rotation magn 200x Real thing? Due to a missing MAB Known probem! 2011.02.24. Muon Barrel WorkShop 26

  27. 2800 vs 1125 YB-2 YB-1 YB0 Translation magn x200 Rotation magn x200 Measured only from one side YB+2 YB+1 Missing MAB +1/9

  28. Strange chambers In RPhi or Z • Wheel +2 Sector 11 MB4 • Problem with the camera calibration: +2/10 4EXT L, CamId: 81, SensorAngY=3.78 deg • Wheel 0 Sector 10 MB1 Fork 3 6side Fork 4 4side are missing • Wheel 0 Sector 10 MB3 Fork 3 6side Fork 4 4side are missing • Wheel +1 Sector 10 MB2 Fork 1 6side, Fork 2 6side 4LED, F3 6side, F4 4 side are missing • Wheel +1 Sector 10 MB4 Fork 1, F2, F3 6side, F4 4side are missing • Wheel +1 Sector 1 MB3 Fork3 6side and Fork4 4side are missing, Fork4 6side bad • Wheel -1 Sector 1 MB1 Fork 2 6 side 3 LED missing • Wheel -1 Sector 3 MB4 Fork 1 6side 2 LED, 4side 2LED are missing, F2 bad • Wheel -1 Sector 3 MB3 Fork 1 4side 2 LED missing, F2 bad In R or rootZ (global) • Wheel -1 Sector 1 MB3 (chimney chamber) Fork 1 6side, Fork 2 missing • Wheel 0 Sector 2 MB1 Fork 2 is bad, (see next slides) 2011.02.24. Muon Barrel WorkShop 28

  29. Comparison 2800 vs 1125 Translation magn 1000x Rotation magn 1000x This is just to show that there are micro movements… 2011.02.24. Muon Barrel WorkShop 29

  30. 2800 vs 1125 YB-2 YB-1 YB0 Translation magn x1000 Rotation magn x1000 YB+2 YB+1

  31. Z-bar measurements on YB±2 What camera observes: Camera local X ‘Real’ life: IP ZLED1 ZLED4 Camera local Y + ZLED2 ZLED5 ZLED1 ZLED4 + ZLED3 ZLED6 ZLED2 ZLED5 YB moves (with MAB) instead of Zfork(changes sign in φ, but not in Z due to an other trafo.) ZLED6 ZLED3 +φCMS on posZ side +φCMS on negZ side 2011.02.24. Muon Barrel WorkShop 31

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