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Dose reconstruction by EPR spectroscopy of tooth enamel : Application to the population of Zaborie village exposed ti high radioactive contamination after the Chernobyl accident.

Ivannikov A.I., Gaillard-Lecanu E., Trompier F., Stepanenko V.F., Skvortsov V.G., Yermakova N., Tikunov D. and Petin D.V. Dose reconstruction by EPR spectroscopy of tooth enamel: application to the population of Zaborie village exposed to high radioactive contamination after Chernobyl accident, Health Physics 86 121-134 (2004).

Document type > *Article de revue

Keywords > dosimetry

Research Unit > IRSN/DRPH/SDE/LDRI

Authors > TROMPIER François

Publication Date > 01/04/2004

Summary

 

Individual irradiation doses were determined by electron paramagnetic resonance spectroscopy of the tooth enamel of the inhabitants of Zaborie village, the most contaminated inhabited settlement no evacuated after Chernobyl accident. Dose determination was performed using a specially developed automatic spectrum processing procedure. Spectrum processing was carried out in different operating modes, and average results were taken in order to reduce the contribution of uncertainty in dose determination caused by spectrum processing. The absorbed doses determined in enamel were corrected to take into account the contribution of natural background radiation and to determine the individual excess dose due to radioactive contamination of the territory. Individual excess doses are compared to calculated individualized doses to teeth, estimated using local radioactive contamination levels, doses rates, and information concerning individual behaviour. The individual excess doses measured by electron paramagnetic resonance spectroscopy and the calculated individualized doses are fully independent. Mean square variation between results of two methods was found to be 34 mGy, which is consistent with error estimation for both methods. This result can validate both the methodology of signal processing presented here when using electron paramagnetic resonance dosimetry of tooth enamel for low doses and the methodology of individualized dose calculation.


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