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Published on: March 22, 2019
Optimisation of the MC-model of a p-type Ge-spectrometer for the purpose of efficiency determination
D Budjás1, M Heisel, W Maneschg
1Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, D-69117 Heidelberg, Germany. dusan.budjas@mpi-hd.mpg.de
Abstract:
An optimisation of the geometrical model of a p-type detector used for material screening was carried out to improve the accuracy of Monte Carlo simulations in reproducing spectrometric measurements. Gamma-ray sources were measured to determine the dimensions of the detector dead layer and borehole. An agreement between simulations and measurement within 3% was achieved at energies above 100 keV. In contrast, discrepancies on the order of 23% were encountered using the nominal parameters from the detector manufacturer.
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