Precise efficiency calibration of an HPGe detector: source measurements and Monte Carlo calculations with sub-percent precision.
With the goal of measuring precise gamma-ray intensities for short-lived (< 5 s) accelerator-produced activities, we have calibrated the efficiency of an HPGe detector between 53 and 1836keV to sub-percent precision with a combination of source measurements and Monte Carlo calculations. Using known or independently measured detector dimensions, we have achieved both relative and absolute agreement (the latter, to 0.1%) between the calculated and measured efficiencies with only two adjustable detector parameters, the thicknesses of the contact dead layers.
Hardy
J C
JC
Cyclotron Institute, Texas A&M University, College Station 77843-3366, USA. hardy@comp.tamu.edu
Iacob
V E
VE
Sanchez-Vega
M
M
Effinger
R T
RT
Lipnik
P
P
Mayes
V E
VE
Willis
D K
DK
Helmer
R G
RG