59Ni Accumulation in Corrosion-Resistant Steel under the Action of Neutron Flux

被引：0
|
作者：
V. A. Varlachev
G. N. Dudkin
V. N. Padalko
机构：
[1] Scientific-Research Institute of Nuclear Physics,
来源：
Atomic Energy | 2005年 / 99卷
关键词：
Energy Spectrum; Neutron Flux; Thermal Neutron; 58Ni Concentration; Radiative Capture;
D O I：
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学科分类号：
摘要：
A γ-ray line with energy Eγ = 11.3 MeV was detected during an experiment, performed on a nuclear reactor, investigating the characteristics of the energy spectrum of γ-rays. The most likely source of this line is radiative capture of thermal neutrons by 59Ni nuclei, which accumulated in the corrosion-resistance steel as a result of the more than 20 years of irradiation in the reactor, via the reaction 58Ni(n, γ)59Ni. It was found that for thermal-neutron fluence 1021 cm−2 the 59Ni concentration is 0.47% of the 58Ni concentration.
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页码：706 / 711
页数：5
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