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 γ-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.
|Number of pages||4|
|Journal||Applied Radiation and Isotopes|
|Publication status||Published - Nov 1996|
|Event||Proceedings of the 1995 4th International Symposium on ESR Dosimetry and Applications - Munich, Ger|
Duration: 15 May 1995 → 19 May 1995