Pass B, Aldrich J E
Med Phys. 1985 May-Jun;12(3):305-7. doi: 10.1118/1.595768.
The determination of the radiation exposure history of the population has become increasingly important in the study of the effects of low-level radiation. The present work was started to try to obtain an in vivo dosimeter that could give an indication of radiation exposure. Dental enamel is the only living tissue which retains indefinitely its radiation history, and electron spin resonance measurements have shown that the radiation signal can be resolved down to about 10 cGy. Measurements on samples from the general population give radiation exposure estimates that are reasonable, and one measurement on a patient who had radiotherapy to the mouth area showed a good correlation with tumor dose. We believe that this is an important new indicator of radiation dose and taken together with exposure histories should provide important data for epidemiological studies as well as accidental exposures.
在低水平辐射影响的研究中，确定人群的辐射暴露史变得越来越重要。开展本研究旨在尝试获得一种能够指示辐射暴露情况的体内剂量计。牙釉质是唯一能无限期保留其辐射历史的活组织，电子自旋共振测量表明，辐射信号可分辨至约10厘戈瑞。对普通人群样本的测量得出的辐射暴露估计值是合理的，对一名口腔区域接受过放射治疗的患者进行的一次测量显示，其与肿瘤剂量具有良好的相关性。我们认为这是辐射剂量的一个重要新指标，与暴露史相结合，应为流行病学研究以及意外暴露提供重要数据。
