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Abstract
Two series of TeO2-P2O5 And Bi2O3-TeO2-P2O5 glass systems have been prepared for the present investigation. Measurements of the dc electrical conductivity in the temperature range of 300-573k for unirradiated and y-irradiation glass samples are reported. The dc electrical conductivity are found to increase with increasing y-irradiation doses. The observed increase in conductivity is attributed to the relative increase in the charge carriers that produced by y-rays. The radiation induced change in dc conductivity is found to be sensitive to temperature and glass composition.