O. Sima, Accurate calculation of total efficiency of Ge well-type detectors suitable for efficiency calibration using common standard sources, NUCL INST A, 450(1), 2000, pp. 98-108
A new method for the calculation of coincidence summing out corrections app
ropriate for gamma-spectrometry measurements in the Ge well-type detector g
eometry is proposed. The method is based on a simple formula for the total
efficiency of the detector, using an exact analytical relation for the mean
detector thickness, combined with approximate formulas describing the inte
ractions in the source and in the materials interposed between the source a
nd the detector. The method can be easily applied for establishing the corr
ected, nuclide independent, efficiency calibration curves of Ge well-type d
etectors using experimental calibration data obtained with the common mixed
gamma-ray standard source containing Co-60 and Y-88. (C) 2000 Elsevier Sci
ence B.V. All rights reserved.