PS electronics test

Run Conditions

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  Laser and one PS electronic board

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  3 SiPM's bias groups per run

Laser Amp = 11.55 + diffuser + NDF 2.0, Rate = 200 Hz

One fADC-250 board, slot 5

based on 3 boards:

1 LV - Wiener OMPV 8008 Slot 9

2 Bias - I-SEG EHSF 201 Slots 2,3 (A)

Runs condition and results

Single Pixel Spectrum

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  single pixel spectrum, SiPM 142

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  A23, A24, A25 bias group

SiPM's gain distribution

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  All Arm-A SiPMs gain

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  Average gain by group (Arm-A)

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  All Arm-B SiPMs gain

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  Average gain by group (Arm-B)

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  All SiPMs gain

SiPM Noise

• run 96: $T=27.18^{{0}}C$

Laser Amp = 11.55 + diffuser + NDF 2.0, Rate = 200 Hz

SiPM Amplitude = 35 mV

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• run 100: $T=26.0^{{0}}C$

pedestal run

• run 101: $T=26.05^{{0}}C$

No Laser Light (window closed), SiPM bias on

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• run 102: $T=29.45^{{0}}C$

Laser Amp = 6.28 + diffuser, Rate = 200 Hz

SiPM Amplitude = 400 mV

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