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740
Fan-in
Fan-out
IN OUT
IN OUT
705
Discriminator
IN OUT
OUT
IN OUT
OUT
N405
Logic unit
IN OUT
AND
Scintillator
PMTA
PMTB
-1000V
V1720
Digitizer
TRIG IN
CH0
CH1
N1145
Visual
Scaler
IN1
IN2
IN3
Timer 1000ms
To each gate
Optical link
to PC
Tail pulse
generator
Green
LED