05/13/2011 coincidence test

Go Back

Set up like that:

The voltages and thresholds are:

PMT voltage, V	threshold, mV
PS1
PS2
n's det

note: I increased my thresholds for PS1 and PS2 from 80 mV up to 100 mV according to mu previous calibration threshold line.

▫ PS1 and PS2: -1000 V

▫ n's: -1500 V

The thresholds are:

▫ PS1 and PS2: -80 mV

▫ n's: -200 mV

Let's do first the coincidence test PS1+PS2

	counts	time	counts/sec
PS1
PS2
PS1+PS2