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Tracking Analysis for beam test T585

Explore the setup, mapping, fiber alignment, dead channels, and analysis techniques for beam test T585. Includes 2D and 3D tracking, P.E. distribution, event reconstruction, and beam parameters.

elijah-mccullough
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Tracking Analysis for beam test T585

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  1. Tracking Analysis for beam test T585 CONTENTS • SETUP • MAPPING/ FIBER ALIGNMENT • DEAD CHANNEL • ANALYSIS • 2D TRACKING • P.E. DISTRIBUTION • 3D TRACKING • P.E. DISTRIBUTION • RECONSTRUCTED EVENT

  2. SETUP BEAM • #4 • #3 • #2 • #1 • 47.5 cm • 32.5 cm • 7.3 cm • -47.5 cm TOFs

  3. VLPC channels • 512 channel per AFE board -> 2048 ch in total AFE board # 104 # 107 # 106 # 105 LH Cassette RH Cassette

  4. GAIN CALIBRATION • Gain is estimated by gaussian fitting • AFE board #106 • MCM #1 • Channel #1

  5. DEAD CHANNEL • VLPC dead (estimated by LED run) • AFE board# 104: ? channels • # 107: 3 channels • # 106: 4 channels • # 105: 4 channels • “Fiber dead” (estimated by normal run) • NOT YET STUDIED....

  6. SIGNAL of SCIFI Raw signal converted into photo electron after subtracting common mode RUN# 1255 B=0T , Rotation=0deg, w/o diffuser

  7. ANALYSIS • 2D Tracking • Fiber Alignment • P.E. Distribution • 3D Tracking • Reconstructed Event

  8. 2D TRACKING V VIEW W VIEW Y X • HIT • Fibers over 2.5 p.e. • FITTING • Minimum chi-square fit • X view : y position Yx • V view : x position Xuv crossed with X view • W view: x position Xuw crossed with W view X VIEW Yx Xuv Xuw BEAM • #1 • #2 • #3 • #4

  9. MAPPING/ FIBER ALIGNMENT After correction..... Fiber # (station 1) Fiber # (station 2)

  10. MAPPING/ FIBER ALIGNMENT Fiber # (station 2) - Fiber # (station 1) Fiber # (station 1) OFFSET TWIST

  11. CROSSING HIT POSITION X position Xw V VIEW W VIEW X position Xv Yx Xv Xw X VIEW

  12. 3D TRACKING • HIT • Fibers of maximum light yield • FITTING • Circular fitting BEAM • #2 • #3 • #4

  13. RECONSTRUCTED EVENT RUN# 1320 B=1T , Rotation=6deg., w/o diffuser • p by TOF

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