Calibrating GESPECOR model of computing the full-energy peak efficiency of coaxial high-purity germanium detectors by Monte Carlo simulation

Appl Radiat Isot. 2023 Dec 9;204:111135. doi: 10.1016/j.apradiso.2023.111135. Online ahead of print.ABSTRACTIn this work, a classical approach was used for calibrating the GESPECOR detector model for computing the full-energy peak efficiency of p-type coaxial HPGe detectors that is based on the use of linear least squares optimization. The key element of the work is the multiplicative model developed for approximating the values of the full-energy peak efficiency provided by GESPECOR code. It was linearized using the logarithmic transformation to allow an easy use of the linear least squares optimization. A procedure was also developed to estimate the optimal values of the parameters, describing the p-type coaxial HPGe detectors. Its application to a Canberra detector GC3018 showed that it is possible to determine accurate values of the full-energy peak efficiency computed by GESPECOR code using the optimized parameter values.PMID:38071857 | DOI:10.1016/j.apradiso.2023.111135

Source: Applied Radiation and Isotopes - December 10, 2023 Category: Radiology Authors: D Gurau D Stanga L Done O Sima G Ilie Source Type: research