MPPC の check 方法

MPPCのcheck方法 hidetoshiOTONO

ACFAで発表した方法 VETO解除 VETO解除 VETO解除 ADC conversion ADC conversion ADC conversion =ADC DAQ time Noise rate = ADC entry / ADC DAQ time

回路図 For the measurement of DAQ dead-time The number of MPPCs will be increasing . Scaler Clock Coin. latch AMP MPPC AMP Disc. relayOn x 63 x 10 Output register G.G veto Dark Box latch Disc. DC Supply Charge ADC RS232C 40ns gate HV Control PC NIM CCNET CAMAC

ADChistogram Gate = 40ns GAIN Num. of event single pulse height ADC DAQ time double pulse height Noise rate ADC DAQ time Cross-talk probability THRESHOLD Channel

Very closing pulses 40ns 40ns 40ns 40ns

VETO解除 VETO解除 VETO解除 ADC conversion ADC conversion ADC conversion Noise rate = (1st peak contents + 2 x 2nd peak contents + …) / ADC DAQ time Correlation を持ってやってくるパルス間の時間を知る必要性→後で調べる。

Curious Pulses 40ns 40ns 40ns 40ns

回路図 The number of MPPCs will be increasing . Scaler Clock AMP MPPC AMP Disc. relayOn x 63 x 10 Output register G.G veto Dark Box latch Disc. DC Supply Charge ADC RS232C 40ns gate HV Control PC NIM CCNET CAMAC

Pulse scan 15ns 20ns 25ns 200ns

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MPPC の check 方法