Development of radiophotoluminescence glass dosimeter usable in high temperature environment |
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| Institution: | 1. Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan;2. National Institute for Fusion Science, 322-6 Oroshi, Toki, Gifu 509-5292, Japan;3. Oarai Research Center, Chiyoda Technol Corporation, 3681 Narita-cho, Oarai-machi, Higashiibaraki-gun, Ibaraki, Japan |
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| Abstract: | A new radiophotoluminescence (RPL) glass dosimeter was developed for use in high temperature conditions such as nuclear emergencies. Its glass material was successfully made by a melting method from reagent grade powder of Ca(H2PO4)2, NaPO3 and AgCl. The new RPL glass dosimeter expectedly emitted orange photons for exposure to UV light after gamma-ray irradiation. It was confirmed that its RPL intensity was proportional to absorbed dose in the range from 10 to 104 mGy. As for its temperature-proof performance, it was found that the RPL sensitivity hardly changed at 573 K for 3 h but gradually went down 25% for 50 h. |
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| Keywords: | Glass dosimeter Radiophotoluminescence Temperature-proof performance |
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