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TB Analysis

This report summarizes the key results from the VELO Group meeting held on April 3, 2009, focusing on the analysis of 20,000 events from the Tell1 sensors. It details the impact of different irradiation levels and various voltage settings on sensor performance, including comparisons of cluster events between low and high irradiated sensors. The findings also include ADC distribution analysis, focusing on the performance of Test Modules and the efficiency of beam intensity across different configurations. Overall, this document serves as a crucial reference for future studies in particle detection and sensor optimization.

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TB Analysis

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  1. TB Analysis Alessandra Borgia & Marina Artuso VELO Group Meeting, Friday April 3, 2009

  2. Important Data Info • 20k evts • First 2 channels of each channel removed • ONLY considered: • 1 cluster events => 1 cluster per sensor for Reference Tell1 ( ≡ low irradiated sensor) • All cluster events for highly irradiated Tell1 • Beam @ top –Sec 3– Tell1 8 High Irradiation • Beam @ bottom –Sec 0– Tell1 5 High Irradiation • Test Module –beam @ Sec 0– R Sensor only Alessandra Borgia, SU Velo Meeting

  3. Position of irradiation spots Tell1 8 n-in-p Tell1 5 n-in-n Top • lars config • run over 20000 events Voltages: • 500V on each sensor • 300V on High irradiated and 500V on Low irradiated Beam High Irr Low Irr Bottom Alessandra Borgia, SU Velo Meeting

  4. Beam @ Top: 300 V 400 V 500 V Tell1 8 1 Strip Clusters Only Beam intensity ~ 200k/spill for 300 V ~ 100k/spill for 400 & 500 V Alessandra Borgia, SU Velo Meeting

  5. Beam @ Top: 300 V 500 V 400 V Tell1 8 1 Strip Clusters on 5 2 Strip Clusters on 8 Beam intensity ~ 200k/spill for 300 V ~ 100k/spill for 400 & 500 V Alessandra Borgia, SU Velo Meeting

  6. Compare between: Test Module & Tell1 5 (Low Irr) 1 Strip Clusters, 1 Cluster per Sensor ADC Distribution Tell1 8 / Test Module Tell1 5 / Beam @ Top Alessandra Borgia, SU Velo Meeting

  7. Compare between: Test Module & Tell1 5 (Low Irr) 1 Cluster per Sensor ADC Distribution Tell1 8 / Test Module Tell1 5 / Beam @ Top / 1 Strip Clust on Tell1 5, 2 Strip Clust on Tell1 8 Alessandra Borgia, SU Velo Meeting

  8. Compare between: Test Module & Tell1 8 (Low Irr) 1 Strip Clusters, 1 Cluster per Sensor ADC Distribution Tell1 8 / Test Module Tell1 8 / Beam @ Bottom Alessandra Borgia, SU Velo Meeting

  9. Compare between: Test Module & Tell1 8 (Low Irr) 1 Cluster per Sensor ADC Distribution Tell1 8 / Test Module Tell1 8 / Beam @ Top / 1 Strip Clust on Tell1 8, 2 Strip Clust on Tell1 5 Alessandra Borgia, SU Velo Meeting

  10. Test Module Fits LanGaus Fit Landau Fit • MP = 22.58 • Landau Width = 1.094 • MP = 22.47 • Landau Width = 1.482 Alessandra Borgia, SU Velo Meeting

  11. Beam @ Top: Tell1 5 / LanGaus Fit Tell1 8 /LanGaus Fit • MP = 22.17 • Landau Width = 1.013 • MP = 15.3 • Landau Width = 0.6033 Alessandra Borgia, SU Velo Meeting

  12. Beam @ Top: Bad fits…how can I fix? Tell1 5 / Landau +10 flat background Tell1 8 / Landau +10 flat background • 0-60 range fit • 12-55 range fit Alessandra Borgia, SU Velo Meeting

  13. Beam @ Bottom: Tell1 5 / Landau Fit Tell1 8 /LanGaus Fit • MP = 14.99 • Landau Width = 1.198 • MP = 20.98 • Landau Width = 0.646 Alessandra Borgia, SU Velo Meeting

  14. Beam @ Top: 100 to 300 um Tell1 8 / Irr / 500V / ADC Distribution in different ranges -100 to - 300 um 300 to 500 um - 100 to +100 um 20k evts in file: RR-beam-top-larscfg-HV500-HV500-20080626-181912.mdf; Intensity = 100 k/spill; ELOG msg: 206 & 203 Alessandra Borgia, SU Velo Meeting

  15. Beam @ Top: Tell1 8 / Irr / 500V / ADC Distribution in different ranges 100 to 300 um -100 to - 300 um 300 to 500 um - 100 to +100 um 50k evts in file: RR-beam-top-larscfg-HV500-HV500-20080626-181912.mdf; Intensity = 100 k/spill; ELOG msg: 206 & 203 Alessandra Borgia, SU Velo Meeting

  16. Beam @ Bottom: 100 to 300 um Tell1 5 / Irr / 500V / ADC Distribution in different ranges -100 to - 300 um 300 to 500 um - 100 to +100 um 20k evts in file: RR-beam-larscfg-HV500-HV500-20080625-150229.mdf; Intensity = 150 k/spill; ELOG msg: 179 & 196 Alessandra Borgia, SU Velo Meeting

  17. Beam @ Bottom: Tell1 5 / Irr / 500V / ADC Distribution in different ranges 100 to 300 um -100 to - 300 um 300 to 500 um - 100 to +100 um 50k evts in file: RR-beam-larscfg-HV500-HV500-20080625-150229.mdf; Intensity = 150 k/spill; ELOG msg: 179 & 196 Alessandra Borgia, SU Velo Meeting

  18. Unfocused Beam Data

  19. Beam @ Top:“Fat” = unfocused beam Tell1 5 / low irr / 1Strip 1Clust Tell1 8 / high irr / 1Strip 1Clust Alessandra Borgia, SU Velo Meeting

  20. Beam @ Top:“Fat” = unfocused beam Tell1 5 / low irr / 1Strip 1Clust Tell1 8 / high irr / 2Strip 1Clust Alessandra Borgia, SU Velo Meeting

  21. Beam @ Top:focused vs unfocused Tell1 5 / low irr / 1strip 1clust / focused Tell1 5 / low irr / 1strip 1clust / UNfocused Alessandra Borgia, SU Velo Meeting

  22. Beam @ Top:focused vs unfocused Tell1 5 / 1 Strip Clust on Tell1 5, 2 Strip Clust on Tell1 8 / focused Tell1 5 / 1 Strip Clust on Tell1 5, 2 Strip Clust on Tell1 8 / UNfocused Alessandra Borgia, SU Velo Meeting

  23. Beam @ Top:focused vs unfocused Tell1 8 / high irr / 1strip 1clust / focused Tell1 8 / high irr / 1strip 1clust / UNfocused Alessandra Borgia, SU Velo Meeting

  24. Beam @ Top:focused vs unfocused Tell1 8 / 1 Strip Clust on Tell1 5, 2Strip Clust on Tell1 5 / focused Tell1 8 / 1 Strip Clust on Tell1 5, 2Strip Clust on Tell1 5 / focused Alessandra Borgia, SU Velo Meeting

  25. Data files used • Test Module: • RPHI-beam-lars-cfg-HV100-HV100-20080624-080945.mdf • RR Beam @ Top: • RR-beam-top-larscfg-HV500-HV500-20080626-181912.mdf • RR Beam @ Bottom: • RR-beam-larscfg-HV500-HV500-20080625-150229.mdf • RR Beam @ Top – Unfocused: • RR-fatty-fat-fat-beam-top-HV500-HV500-20080627-160833.mdf Alessandra Borgia, SU Velo Meeting

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