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Comparing Position Analysis of R-23 “Floating” Mesh 1 and Mesh 2

Comparing Position Analysis of R-23 “Floating” Mesh 1 and Mesh 2. Emmanuel Angulo (CSU Fresno). Schematic of Strips and Floating Mesh of R-23. Drift Electrode. Mesh has some tension (stretched). Mesh. Mesh Frame. Pillars (Insulated). Resistive Strip. Insulator. Non-resistive Strip.

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Comparing Position Analysis of R-23 “Floating” Mesh 1 and Mesh 2

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  1. Comparing Position Analysis of R-23 “Floating” Mesh 1 and Mesh 2 Emmanuel Angulo (CSU Fresno)

  2. Schematic of Strips and Floating Mesh of R-23 Drift Electrode Mesh has some tension (stretched) Mesh Mesh Frame Pillars (Insulated) Resistive Strip Insulator Non-resistive Strip PCB Board

  3. Gas Gain of R-23 M2

  4. Cu X-Ray Measurements M2 – Low Tension M1 – High Tension • 100 Positions (0.9cm x 0.9cm) • Connectors 1,2,3 (x-dir strips only) • HV of Strips @ 610 • HV of Drift @ 300 • X-Ray with 1mm collimator and cu foil cover @ 100000 event count • 56 Positions (0.9cm x 1 cm) • Connectors 1,2,3 (x-dir strips only) • HV of Strips @ 550 • HV of Drift @ 300 • X-Ray with 1mm collimator and cu foil cover @ 100000 event count

  5. M1 (High Tension) vs M2 (Low Tension) M1 - 100 data points M2 - 56 points data

  6. M1 (High Tension) vs M2 (Low Tension)

  7. Huge charge up effect @ only 500 Hz (5,4) Ends here, Channel 210, after 173 seconds Charge up starts here, Channel 310 Charge up rate = 1 Ch/1.73 Sec

  8. R19M Charge Up at 12kHz Rate @ 490V (expanded view)

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