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User name Quinn
Log entry time 16:41:05 on September 07, 2009
Entry number 288442
keyword=Changes in CMU compton DAQ
Changed integration time on TFA (to latching scaler trigger) back from
500nS to 20nS. (Had been changed previously to prevent multi-firing of
discriminator... now no sign of multi-firing is seen?) This may help
clean up the trigger threshold for laser-on runs so they may agree better
with laser-off spectra.
Plugged 40MHz clock into IP scaler (to be used in future for CRL to
determine how much time remains before end of integration period).
Added MPS bit to External input 1 of Happex timing board (so CRL can
check whether IP has ended at end of readout).