UMN CDMS Wiki archive
start › cdms › plasticscintillator › ebook › sipmgain

SiPM Gain Calculations

Equation 1: (from Hannah's oral paper)

Equation 2: (from Hannah's oral paper)

In Table 1, the values determined for ΔnPE are shown. As the time bin conversion for the TB4 board is 4.708 nsec/bin, and the conversion from ADC to mV is (ADC+7.7)/299.8, the distances between peaks can be converted to pV·s. Using Equation 2, along with the fact that R=50Ω is the load resistance of the TB4 board, the gains can be calculated.

Table 1: ADC distance between SiPM photoelectron peaks
SiPM Distance (ADC·bin) Distance (pV·s) SiPM Gain
A 758 ± 2 11.90 ± 0.04 (1.486 ± 0.007) × 106
B 686 ± 7 10.77 ± 0.11 (1.345 ± 0.015) × 106
C 676 ± 3 10.62 ± 0.05 (1.325 ± 0.008) × 106

Alex/Hannah data:

PMT Gain Calculation