Changes

The general analysis procedure was to

The general analysis procedure was to

# histogram the collected set of function integrals

# histogram the collected set of function integrals

# get the pedestal: the first peak corresponds to events with no photon hits, so it properly belongs at zero (charge collected)

# get the pedestal: the first peak corresponds to events with no photon hits, so it properly belongs at zero [charge collected]

# gain is calculated and histogram rescaled: the width between adjacent peaks corresponds to the the gain in units of Vs/pixel. (Using the amplifier trans-impedance gain value, this can later be converted to charge/pixel)

# gain is calculated and histogram rescaled: the width between adjacent peaks corresponds to the the gain in units of Vs/pixel. (Using the amplifier trans-impedance gain value, this can later be converted to charge/pixel)

# mean of this shifted, rescaled set is calculated. Since each peak is now pegged to photon count, the mean is in the units of average photons received. Based on this value, corrected by the dark count (described below), the efficiency of the SiPM can be calculated by comparing this average flux to that felt by the HPD.

# mean of this shifted, rescaled set is calculated. Since each peak is now pegged to photon count, the mean is in the units of average photons received. Based on this value, corrected by the dark count (described below), the efficiency of the SiPM can be calculated by comparing this average flux to that felt by the HPD.