Responses of Silver-activated Phosphate Glass to Alfa.-, Beta- and Gamma-rays and Neutrons

Abstract

The responses of Ag-activated phosphate glass to alfa, beta, gamma and neutron radiations have been examined. In each case there is a linear relationship between the glass reading and dose of ionizing radiation. The reading per rad in the glass is independent of photon or beta-particle energy over a wide range, while at high LET it decreases with increasing LET, the reading being one-fifth as much per rad for alfa-particles as for gamma-rays. The glass has been applied successfully in absolute measurement of absorbed dose in a beta-radioactive solution, separate measurements of gamma-ray dose and thermal neutron flux in a thermal column, and measurements of X-ray dose distribution in a mouse.