Estimation of solar radiation and its effects on tooth enamel electron spin resonance dosimetry

VernacularTitle:日射量的估算及其对牙釉质电子自旋共振剂量学的影响
Author: Ling JIAO ; Wenyi ZHANG ; Yanqiu DING ; Liangan ZHANG ; Masaharu HOSHI
Publication Type:Journal Article
Keywords: Solar illuminance; Solar radiation; Tooth enamel; Electron spin resonance; Dosimetry
From: Chinese Journal of Radiological Medicine and Protection 2009;29(3):306-309
CountryChina
Language:Chinese
Abstract: Objective To investigate solar radiation and its effects on human tooth enamel electron spin resonance (ESR) dosimetry. Methods 11 tooth enamel samples were prepared by mechanical method. The intensity of solar iUuminanee was measured with a light meter, the measured illuminance was converted to insolation using a coefficient. Summation of solar radiation was evaluated. Enamel samples were exposed to 60 Co γ rays followed by sunlight on sunny days, and ESR spectra were scanned after different exposure. Results The solar radiation to the samples was (580 ± 16) MJ/m2. Solar exposure also caused dosimetrie signal. The perpendicular component of dosimetrie signal increased linearly with the amount of solar radiation, another signal close to background tended to saturation. Conclusions The average effect of the solar radiation on the signal was be used to recognize the effect of solar radiation on the enamel, and estimate external dose accurately.