HPGe-Detector as the base of radon concentration standard source

Abstract

The purpose of this work is to introduce a simple and accurate system for calibrating radon measurement devices for monitoring the activity concentration of 222Rn in air. A high-purity germanium (HPGe) detector connected with 226Ra solid source to produce this simple prototype calibration system. A small emanation box was mounted on the HPGe detector for online gamma measurements. Inside this box, a solid 226Ra standard source was placed.