CLAS12R1 CosmicTestStand

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Two scintillators are placed on top and below the drift chamber

These scintillators have PMTs on both ends allow an initial position to be determined according to the time difference between the PMT hits.

Below is the calibration for Detector M and Detector G

HV(M1) = -1602 Volts HV(M2) = -1750 Volts


HV(G1)= -1700 Volts HV(G2)= -1650 Volts


M1 = TDC80 M2 = TDC81 G1 = TDC84 G2 = TDC86 Trig = TDC 95

M1 = TDC112 M2 = TDC113 G1 = TDC116 G2 = TDC118 Trig = TDC 127

Trigger Matching is ON resolution = 100 ps

[Detector HV]