Godfrey-Smith D I, Pass B
Department of Earth Sciences, Dalhousie University, Halifax, N.S., Canada.
Health Phys. 1997 May;72(5):744-9. doi: 10.1097/00004032-199705000-00010.
Currently, retrospective biophysical radiation dosimetry lacks a technique that is sensitive, non-invasive, and portable. This has made reliable cause and effect relationships between radiation exposure and its outcomes in humans difficult to establish. Since optical technology is amenable to miniaturization, a search for optically stimulated luminescence in dental enamel was begun. The first successful detection of time dependent optically stimulated luminescence from gamma irradiated enamel was accomplished. This luminescence is absent in enamel that is not irradiated or that was heated following irradiation. Thermoluminescence observations were made concurrently with the optical measurements which clarified the role of the organic component of enamel.
目前，回顾性生物物理辐射剂量测定法缺乏一种灵敏、无创且便携的技术。这使得难以在人类中确立辐射暴露与其后果之间可靠的因果关系。由于光学技术易于小型化，于是开始在牙釉质中寻找光激发发光现象。首次成功检测到了γ射线辐照牙釉质产生的随时间变化的光激发发光。未辐照或辐照后加热的牙釉质中不存在这种发光现象。在进行光学测量的同时还进行了热释光观测，这阐明了牙釉质有机成分的作用。
