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EXPERIMENTAL CHECK OF AN EFFECTIVE DOSE ESTIMATION TECHNIQUE AND MEASUREMENT OF HUMAN ORGAN DOSES IN CONDITIONS OF A NUCLEAR POWER PLANT
[Article in Ukrainian]
V. M. Voloskyi*, V. V. Chumak, O. V. Bakhanova
State Institution “National Research Center for Radiation Medicine of the National Academy of Medical Sciences of Ukraine”, Melnykov str., 53, Kyiv, 04050, Ukraine
*Correspondingauthor:Vitalii M. Voloskyi, e-mail: vit.voloskyy@gmail.com
Experimental phantom measurements are performed for two workplaces at the nuclear power station during scheduled repair of a power unit. It is shown that practical application of the technique of individual effective dose estimation is possible in case of non-uniform external gamma exposure if angular characteristics of the radiation field are known. Application of a single conversion factor of transition from TL dosimeter readings to the effective dose is possible for the known limited degree of field anisotropy, for the cases of strong anisotropy the use it is recommended to use multiple dosimeters. The implementation of this technique allows avoiding dose underestimation in strongly anisotropic fields of radiation, as well as reducing the conservatism of the effective dose estimation.
Key words: effective dose, organ dose, phantom measurements, TL dosimetry, gamma exposure.
Probl. Radiac. Med. Radiobiol. 2012. Issue 17. P.46–54
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