Full-energy peak determination from total efficiency and peak-to-total ratio calculations

摘要

The aim of this work is to examine, from a theoretical point of view, the full-energy peak determination by starting from total efficiency and peak-to-total calculations, which are widely used in gamma-ray spectrometry. The detectors here examined include five different sodium iodide NaI(Tl) detectors and three high purity germanium HPGe detectors. The full-energy peak efficiency was determined both analytically and numerically. In some cases, the discrepancy between the experimental values was less than 6%. Some differences between semi-empirical calculations, analytical calculations, and Monte Carlo methods are shown. In addition, some of these results were compared with available experimental data.