Efficiency evaluation of gamma-ray solid-state detectors

Abstract A method for photopeak efficiency determination for solid-state detectors is described. In the first step the shape and dimensions of the sensitive volume of the detector are experimentally determined. In the second step photopeak efficiency is evaluated by a Monte Carlo computer program utilizing the information obtained in the previous step. The program allows the calculation of the photopeak efficiency up to 10 MeV gamma-ray energy following charged and electromagnetic secondary radiations in the detectors. Results evaluated with the present method are compared with experimental data.