1. 1 Status Report RPC Diagnostic with DT Segment Extrapolation Camilo Carrillo CERN Departamento de Física UNIVERSIDAD DE LOS ANDES Bogotá, Colombia

2. 2 Outline CRAFT HISTORY. HV Scan. Reports done about RPCs. Reclusterizer. DQM Offline.

3. 3 CRAFT HISTORY First of all, First of all, this analysis has been done with the results published in Bari's server from segment efficiency. Available for everybody. http://webcms.ba.infn.it/~webrpc/efficiency/http://webcms.ba.infn.it/~webrpc/efficiency/* Summary with run description in Twiki Page https://twiki.cern.ch/twiki/bin/view/CMS/RPClistofRunP5 Last Runs slow analysis, CAF queue too busy

4. 4 CRAFT List of runs

5. 5 HV Scan For example W+0_RB1in_S09_Backward flag=good WP=9.29 kV eff=78.56 % Results about HV scan during CRAFT for all the barrel with DT Segment extrapolation. http://webcms.ba.infn.it/~webrpc/efficiency/hvscan2 In red % Masked strips, black hv scan Different Profiles

6. 6 Fit Function* Emax 0,5% Why less masked strips with higher voltage? Finding the Working Point and the Max Efficiency. *from MTCC paper flag=good WP=9.29 kV eff=78.56 % Is this the actual HV?

7. 7 9.1kV 9.3kV9.2kV HV Scan 9.0kV

8. 8 Reports about. Inverted FEBs in the Barrel. Parity like rotation in the endcaps. Wrong Strip Lengths in the Barrel. Shift in the residuals.

9. 9 Inverted FEBs in the Barrel first 15, last 15.

10. 10 List of inverted FEBs “first 15, last 15” W-2_RB3-_S02_Backward = 1 W-2_RB3+_S11_Forward = 1 W+0_RB3 Sector 4 & 5 = 8 TOTAL 10

11. 11 Inversion at FEB level Efficient Ineficient

12. 12 List of inversion at “FEB level” W+1_RB1out_S06_BackwardW+1_RB1out_S06_ForwardW+1_RB2out_S06_BackwardW+1_RB2out_S06_Forward Total 4

13. 13 Rotated rolls in the EndCaps.

14. 14 List of rotated rolls in the EndCaps All RE+2 (Far Side turned off)‏ RE+1 Ring 1 Hard to explain the low efficiency in the chambers without geometrical effects, working on that.

15. 15 Wrong Strip Lengths in the Barrel After implemented 2D histograms in the barrel we found the explanation to many low efficiencies.

16. 16 With Out Cross Talk is more clear

17. 17 List of chambers with Wrong strip Length. W-2_RB1out_S12_Forward W-2_RB1in_S09_Forward W-2_RB2out_S04_Middle W-2_RB2out_S08_Backward W-2_RB3-_S04_Forward W-2_RB3+_S10_Backward W+0_RB2in_S02_Middle W+0_RB2in_S02_Forward W+0_RB1out_S01_Backward W+0_RB1out_S01_Forward W+0_RB2out_S06_Forward W+0_RB3+_S04_Forward All Wheel -1 Sector 3 (Confirmed) = 17 rolls. Is not possible to check if a strip in the geometry is shorter that the actual one, is checking all the list.

18. 18 Strange effect under study. New Any help with this???

19. 19 Residuals with DT Segment EXtrapolation Even for RB4

20. 20 Is observed some shifts > 1cm* Wheel -2 RB2out S02_M -1.03 RB2out S02_B -1.075 RB1out S08_B 1.043 Wheel -1 RB3- S06_B -1.013 RB3+ S06_B -1.149 RB3+ S06_F -1.192 Wheel 0 RB1in S02_F -1.054 RB2in S02_B 2.659 RB2in S02_M 2.781 RB2in S02_F 2.742 RB2in S05_F -1.095 RB2out S05_F 1.087 RB3- S02_B -1.083 Wheel +1 RB1out S06_B -1.281 RB1out S06_F -1.001 RB2out S06_F -1.017 Wheel +2 RB2in S01_B 3.991 RB2in S01_F 3.895 RB2in S02_F -1.018 RB2out S02_B 1.132 RB3- S02_B -1.07 * Selection of residuals by Taimoor

21. 21 RPCs could be included in alignment studies.

22. 22 Now analyzing again a distribution Strange Effect Chambers turned off Inversions at the level of FEB Many Masked Strips Some Masked Strips Wrong Strip Lenght Good Run with 9.3,9.4kVGood Run with 9.3,9.4kV Shifts

23. 23 To finish reclusterizer. Masked strip Masked Strip in the MiddleOld Rec HitsNew Rec Hit

24. 24 News about DQM Offline All the CRAFT data will be reprocessed in a new version of CMSSW_2_2_X in Tier 0, this tool will be in. New histograms showing the Efficiency per wheel (asked by Pigi). The changes in the Geometry will be available for CMSSW_3_0_X.