Current Characteristics of Ionizing Radiation Fields of the IBR-2 Reactor’s Irradiation Facility for Researching Materials’ Radiation Resistance

The current characteristics of the ionizing radiation fields of an irradiation facility intended for studying the radiation resistance of materials on channel no. 3 of the IBR-2 reactor are presented. Flux densities of fast neutrons for the power of 1.55 MW of the IBR-2 reactor are refined. For the...

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Bibliographic Details
Published in:Instruments and experimental techniques (New York) 2022, Vol.65 (3), p.371-375
Main Authors: Petrova, M. O., Bulavin, M. V., Rogov, A. D., Yskakov, A., Galushko, A. V.
Format: Article
Language:English
Subjects:
Electrical Engineering
Fast neutrons
Ionizing radiation
Measurement Science and Instrumentation
Monte Carlo simulation
Neutrons
Nuclear Experiment Technique
Physical Chemistry
Physics
Physics and Astronomy
Radiation dosage
Radiation tolerance
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Summary:The current characteristics of the ionizing radiation fields of an irradiation facility intended for studying the radiation resistance of materials on channel no. 3 of the IBR-2 reactor are presented. Flux densities of fast neutrons for the power of 1.55 MW of the IBR-2 reactor are refined. For the first time, the values of absorbed γ-radiation doses have been experimentally obtained. Values exceeding the range of absorbed doses measured by the dosimeters near the IBR-2 water moderator were calculated by the Monte Carlo method. Devices and methods for quantifying characteristics are described. The range of fast neutron densities along the irradiation facility was 3 × 10 6 −8 × 10 11 neutrons/(cm 2 ), and the rates of  γ-radiation dose were 3 × 10 −4 −12 Gy/s.
ISSN:0020-4412
1608-3180
DOI:10.1134/S0020441222030046