Abstract
Abstract The thermoluminescence (TL) response to gamma-ray irradiation of tooth enamel is reported. The tooth enamel was separated from dentine by using mechanical and physico-chemical procedures followed by grinding (grain size ∼100 μm) and etching. The TL was attributed to the recombination of CO 2 − radicals incorporated into or attached to the surface of hydroxyapatite crystals. The growth of the ∼380 °C TL peak with absorbed dose was examined with irradiated tooth enamel samples and reconstructed doses evaluated for tooth enamel samples from four human subjects.
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