ESR dosimetry of a deceased radiation worker.
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.
Ikeya
M
M
Department of Earth and Space Science, Faculty of Science, Osaka University, Japan.
Sumitomo
H
H
Yamanaka
C
C
Lloyd
D C
DC
Edwards
A A
AA
D001842:Bone and Bones / Q000737:chemistry / Q000528:radiation effects; D003743:Dental Enamel / Q000737:chemistry / Q000528:radiation effects; D004578:Electron Spin Resonance Spectroscopy / Q000379:methods*; D005609:Free Radicals / Q000032:analysis / Q000528:radiation effects; D006801:Humans; D008297:Male; D016273:Occupational Exposure; D011829:Radiation Dosage; D018788:Radioactive Hazard Release; D011874:Radiometry / Q000379:methods*; D006113:United Kingdom
D005609:Free Radicals