Provided is a glass dosimeter suitable for measuring radiations. The glass dosimeter includes radiation detection glass and a metal filter and is characterized by the radiation detection glass containing, in percentages by mass, over 2.5 to 10% SiO2, 60 to 80% P2O5, 5 to 30% Al2O3, 5 to 20% Na2O, and 0.01 to 5% Ag2O.
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