PSI System Controls and Diagnostics
A500 User Manual
A500_UM_090115 Page 54 of 61
Count rate lower than
expected.
Very high count rate, giving
pulse pileup losses.
Reduce count rate and check
for correct readings.
Avoid average count rates >
50 MHz.
Pulse height comparator
feeding gate-counter inputs
incorrectly configured (pulses
too long).
Reduce count rate and check
for correct readings.
Set up comparator to give
pulse lengths in the 5 - 10 nsec
range.