LB DAQ

Refer to https://wiki.iac.isu.edu/index.php/JB_DAQ for information about how to set up the run control

Draw command for PAA

PAA->Draw("PADC.PADC785N[3]/2-8>>photons(1000,0,4000)","")

Below is a sample background run from the file r5811.root

and here it is zoomed in to show that photons with energies below 100 keV can be seen.

A program called BackgroundSubtract.C was created on daq2 in the /home/daq directory. It accepts 4 arguments. The first is the Source Run of interest, the second is the background spectrum file, the third is the total runtime for the Source Run and the final argument is the total runtime for the background run.

Ba-133 1uCi source spectrum

PAA->Draw("PADC.PADC785N[3]/2-8>>Ba133(1000,0,500)","")

60 mv leading edge discriminator threshold