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

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  • ガンマー線照射によるガラスの電気伝導性変化に関する研究
  • ガンマーセン ショウシャ ニ ヨル ガラス ノ デンキ デンドウセイ ヘンカ ニ カンスル ケンキュウ

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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.<br>The electric conductivity for ten kinds of glasses were measured after irradiating gamma-rays up to the maximum dosage of 107r. using Co60.<br>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.<br>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.

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