Energy dependence of silver phosphate glass dosimeters

Abstract

The responses of three types of silver phosphate glass dosimeter to X- and γ-radiation show a small energy dependence effect over the energy region, 1·26 to 24 MeV. Dosimeters in the form of thin glass plates exhibit a greater response to low energy X-rays. Increasing the size of the glass element reduces this energy dependence. Other investigators have found that by placing suitable lead filters about the glass, the response of the dosimeters was reasonably energy independent over the range 100 keV to 1 MeV. It has, however, been found that the lead filters cause phosphate glass dosimeters to show a high response to X-rays of several MeV in energy.