Abstract
An electron spin resonance (ESR) dosemeter was used to measure ESR absorption spectra of sugar and shell buttons made of mother-of-pearl, for the purpose of evaluating the external dose to exposed inhibitants in the vicinity of a radiation accident. The ESR absorption intensity of sugar was proportional to dose in the range from about 30 mGy to 6 x 10(4) Gy. The lifetime of the free radical created in both sugar and shell buttons by radiation was stable for at least 6 months after irradiation. If sugar and shell goods left in or around houses since the occurrence of the Chernobyl reactor and the Brazilian accidents were obtained, it would be possible to estimate from them the integrated external dose to exposed people.
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