Ikeya M, Sumitomo H, Yamanaka C, Lloyd D C, Edwards A A
Department of Earth and Space Science, Faculty of Science, Osaka University, Japan.
Appl Radiat Isot. 1996 Nov-Dec;47(11-12):1341-4. doi: 10.1016/s0969-8043(96)00173-x.
A case of overexposure of an industrial radiographer using 192Ir sources and having a filmbadge dosimeter record of 104 mSv has been examined with ESR dosimetry of postmortem tooth and bone specimens. ESR measurements of the tooth enamel showed an intense signal of CO2- and gave the equivalent dose (ED) of 14 Gy by the additive dose method using gamma-rays from a source of 60Co. The doses for a finger bone and humerus were 14.7 and 7.0 Gy, respectively. It was concluded that he had been exposed to radiation repeatedly over 10 yr and that ESR dosimetry can give a life-long cumulative dose for personnel using radiation.
对一名工业放射技师的过度暴露案例进行了研究，该技师使用192Ir源，其胶片剂量计记录为104 mSv。通过对死后牙齿和骨骼标本进行电子自旋共振（ESR）剂量测定法进行了检测。牙釉质的ESR测量显示出强烈的CO2-信号，并通过使用来自60Co源的伽马射线的相加剂量法得出等效剂量（ED）为14 Gy。手指骨和肱骨的剂量分别为14.7 Gy和7.0 Gy。得出的结论是，他在10年多的时间里反复受到辐射照射，并且ESR剂量测定法可以给出使用辐射人员的终身累积剂量。
