Occupational Exposure to Neutrons at the Beloyarsk NPP
Author:
Pyshkina Mariya12, Vasil'ev Aleksey1, Ekidin Aleksey1, Nazarov Evgeniy1, Pudovkin Anton3, Nikitenko Vitaliy4, Gurinovich Vladimir5, Komar Damian6, Kozhemyakin Valery7
Affiliation:
1. Institute of Industrial Ecology, Ural Branch of the Russian Academy of Sciences 2. Ural Federal University 3. Russian Federal Nuclear Center – All-Russian Scientific Research Institute of Technical Physics named after E.I. Zababakhina 4. Beloyarsk NPP 5. Scientific Production Unitary Enterprise «ATOMTEH» 6. Scientific Production Unitary Enterprise «ATOMTEX» 7. Scientific Production Unitary Enterprise «ATOMTECH»,
Abstract
Studies of the energy distribution of neutron radiation at the workplaces of the Beloyarsk NPP were carried out. At 1 and 2 power units, occupational exposure of neutron irradiation occurs during operations for loading spent nuclear fuel into special railway carriage. At power units 3 and 4, operations accompanied by neutron irradiation can be divided into 3 groups: (1) work in rooms adjacent to the reactor core; (2) manipulation of radioisotope neutron sources; (3) work with fresh and spent nuclear fuel. Based on the data obtained on the energy distribution of the neutron radiation flux density, the ‘true’ values of the ambient dose equivalent rate H*(10), the individual dose equivalent rate Hp(10) and the integral neutron radiation flux density at individual workplaces were determined. For each group of workplaces, Fluence-toambient dose equivalent conversion coefficients are determined, which lie in the range from 12 to 295 pSv⋅cm2. Correction factors for individual thermoluminescent dosimeters, taking into.
Publisher
Scientific Production Company Doza, Ltd
Reference14 articles.
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