On the Influence of the Gamma-Irradiation upon the Electric Conductivity of Glasses

Abstract

Influence of gamma-irradiation upon properties of glasses have scarcely been studies excepting phenomena such as coloration and fluorescence caused by the irradiation. In this study, therefore, not only the influence of gamma-irradiation upon the electric conductivity of glasses, but applicability of glasses exposed by gamma-rays to semi-conductive glass or radiationdosimeter was studied.The electric conductivity for ten kinds of glasses were measured after irradiating gamma-rays up to the maximum dosage of 107r. using Co60.For the measurement of the electric conductivity, a vacuum tube voltmeter was used for the range of low resistance values and a vibration reed electrometer for the range of high resistance.The result of the measurement showed that no change in electric conductivity of the glasses occured by the irradiation of 107r. and consequently the gamma-irradiation to the glasses was found to be unapplicable in making semi-conductive glass and glass-dosimeter.