FM Calibration

Stability with environment

FM Pulse Height as function of Temp
Pulse Height as function of Temperature for FM
Temperature (Vacuum=1.07X10-5mBar) Peak Channel (DAC mV) Counts at Peak channel
Ambient before thermovac 226 5
0ºC 225 22
10ºC 224 22
20ºC 224 22
30ºC 223 21
40ºC 218 17
50ºC 214 17


Linearity in Gamma ray Spectrum

FM Gamma ray Linearity
Gamma ray spectrum linearity for FM
Source Energy (keV) Peak position (DAC mV) Counts at Peak Position Standard error in peak position
Ba133 356 128 (156 mV) 13.85 14.9376
Cs137 662 214 (261 mV) 12.58 14.7068
Eu152 1112 409 (499 mV) 7.42 27.1681
Eu152 1408 603 (735 mV) 4.88 25.1330