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FNAL Beam test results

FNAL Beam test results. A. Zhang, V. Bhopatkar, M. Phipps, J. Twigger , M. Hohlmann HEP Group A, Florida Tech 2013/11/18. Results to be shown. Beam profiles of 2D trackers Noises and Offsets CMS zigzag and 10cm zigzag detectors Charge distributions; Position scan (uniformity);

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FNAL Beam test results

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  1. FNAL Beam test results A. Zhang, V. Bhopatkar, M. Phipps, J. Twigger, M. Hohlmann HEP Group A, Florida Tech 2013/11/18

  2. Results to be shown • Beam profiles of2D trackers • Noises and Offsets • CMS zigzag and 10cm zigzag detectors • Charge distributions; • Position scan (uniformity); • HV scan (‘gain’) • Delta_y distribution of 10cm zz.

  3. Beam Profiles _ Hit Map 20GeV: X_6cm, Y_3cm

  4. Beam Profiles _ Hit Map 32GeV: X_6cm, Y_3cm

  5. Beam Profiles _ Cluster Charge Map 20GeV: X_6cm, Y_3cm

  6. Beam Profiles _ Cluster Charge Map 32GeV: X_6cm, Y_2cm 6

  7. Noises CMS ZZ APV Noises less than 10 ADC channels, Offsets around 1400-1500 ADC channels. Offsets

  8. 30 30 Two 10cm zigzag detectors’ APV noises and offsets. Each detector uses 30 channels of a APV.

  9. Cluster charge distribution of CMSZZ eta5 Peak charge distribution Most of the signals’ max. happen in the 3rd of the 9 time windows. Strips occupancy Consistent with beam profiles from 2D trackers

  10. 2 points / 7 sectors of CMS zz detector were tested (HV 3200V). Maximum charge difference percentage is about 50%, ie., the uniformity is about 25%. Charge of the signal is around 10fC. (gain of APV is 232e/ADC)

  11. 10cm ZZ: 3/2/2/2 CMSZZ: 3/1/2/1 HV scan of CMSZZ and 10cm ZZ detectors. Charge is between 3 and 90 fC. Charge in 10cm detector is a little higher than in CMS, because of larger gas gap.

  12. Sigma 355μm Resolution ~ Sigma 0.118 strips Resolution ~ Delta_Y distribution from 10cm Zigzag 30 channels @10deg, HV 4050V With cut conditions by cluster charge and cluster size

  13. Sigma 380μm Resolution ~ Sigma 0.108 strips Resolution ~ Delta_Y distribution from 10cm Zigzag 30 channels @20deg ,HV 4050V With cut conditions by cluster charge and cluster size

  14. P1 10cm_detector#1 MPV 538.1 10cm_detector#2 MPV 867.1 P2 10cm_detector#1 MPV 495.9 10cm_detector#2 MPV 864.4 P3 10cm_detector#1 MPV 411.9 10cm_detector#2 MPV 715.5 Charge distributions of 10cm zz 30 channels at 20deg position, HV 4050V

  15. P1 P2 10cm zz48 channels at 0 deg, HV 4000V, delta_y distributions at 2 points.

  16. P1 10cm_detector#2 MPV 871.2 10cm_detector#1 MPV 816.6 P2 10cm_detector#1 MPV 767 10cm_detector#2 MPV 776.8 P3 10cm_detector#1 MPV 813.4 10cm_detector#2 MPV 808.9 16 Charge distributions of 10cm zz48 channels at 0deg position, HV 4000V

  17. Summary • We are getting positive results, eg., beam profiles, cluster charge spectra, charge vs HV, position uniformity etc., and more plots will come out. • Still need to improve delta_y plots, so to get more precise resolution of zigzag detectors. And to compare results of different angles for 10cm zigzag detectors. • We will start full data analysis process soon, so that we will get a first chance to look at all results together. • Tracking function of the detector systems needs to be implemented, which is the most important step for analyzing on the road.

  18. Summary • We are getting positive results, eg., beam profiles, cluster charge spectra, charge vs HV, position uniformity etc., and more plots will come out. • Still need to improve delta_y plots, so to get more precise resolution of zigzag detectors. And to compare results of different angles for 10cm zigzag detectors. • We will start full data analysis process soon, so that we will get a first chance to look at all results together. • Tracking function of the detector systems needs to be implemented, which is the most important step for analyzing on the road. Thanks!

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