Method for determining the depth of deposit of gamma-ray radiation sources using a xenon gamma-ray spectrometer

Radioactive contamination of nuclear-physical facilities is a serious obstacle to their operation and decommissioning. In this article, a method for determining the depth of deposit of radioactive sources based on the analysis of energy gamma-spectra, calculation of the ratio of the area of the peak of total absorption to the area of the Compton valley is proposed. The proposed method is tested on various adsorbents using a xenon gamma-spectrometer as a registering device.