QM Calibration

Stability with environment

QM Pulse Height as function of Temp
Pulse Height as function of Temperature for QM
Temperature (Vacuum=1.07X10-5mBar) Peak Channel (DAC mV) Counts at Peak channel
Ambient before thermovac 250 31
0ºC 249 11
10ºC 251 11
20ºC 255 11
30ºC 250 11
40ºC 252 11
50ºC 228 11


Linearity in Gamma ray Spectrum

QM Gamma ray Linearity
Gamma ray spectrum linearity for QM
Source Energy (keV) Peak position (DAC mV) Counts at Peak Position Standard error in peak position
Ba133 356 159 (194 mV) 12.0981 17.4002
Cs137 662 268 (327 mV) 11.8553 18.7959
Eu152 1112 560 (683 mV) 39.4239 19.6171
Eu152 1408 804 (981 mV) 36.3335 21.3329