Development of radiophotoluminescence glass dosimeter usable in high temperature environment
2013
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(H 2 PO 4 ) 2 , NaPO 3 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 10 4 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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