Improvement to the semi-empirical germanium detector response model at the Compton edge

Angell, C.

An accurate detector response model is needed for extracting broad distributions of -rays incident on a detector. Current analytical detector-response models for HPGe detectors systematically vary from experimental spectra in the region of the Compton edge. In this work, we introduce new terms for the Compton edge in the semi-empirical detector response model, an analytical model for HPGe detectors, which produces better agreement at the Compton edge and broadens the model's applicability to a wider range of detector geometries.