辐照钢精确核素成分计算中的扩展单组截面库

IF 0.4 4区工程技术 Q4 NUCLEAR SCIENCE & TECHNOLOGY

Atomic Energy Pub Date : 2024-03-12 DOI:10.1007/s10512-024-01043-5

E. F. Mitenkova, N. V. Novikov, E. V. Solovjeva

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引用次数: 0

摘要

在精确核素成分计算中使用扩展的单组截面库证实了将高阈值反应纳入库中的重要性。对杂质核素给予了特别关注，因为这些核素在解决核工程问题中的作用越来越大。高阈值反应扩展库形成过程中的现有模糊性导致包括杂质在内的单个核素的浓度明显不同。本文介绍了扩展库对计算核素组成的影响，适用于中子通量为 2.7 ∙ 1015 s-1 cm-2 的钢，辐照时间为 10 至 1000 天。

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Extended one-group cross-section libraries in precision nuclide composition calculations of irradiated steel

The use of extended libraries of one-group cross-sections in precision nuclide composition calculations confirms the importance of including high-threshold reactions in the libraries. Particular attention is paid to impurity nuclides, which are increasingly relevant in solving problems of nuclear engineering. The existing ambiguity in the formation of extended libraries with high-threshold reactions leads to markedly different concentrations of individual nuclides, including impurities. The effect of extended libraries on the calculated nuclide composition is presented for steel irradiated with a neutron flux of 2.7 ∙ 10¹⁵ s⁻¹ cm⁻² for an irradiation time ranging from 10 to 1000 days.

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来源期刊

Atomic Energy 工程技术-核科学技术

CiteScore

1.00

自引率

20.00%

发文量

100

审稿时长

4-8 weeks

期刊介绍： Atomic Energy publishes papers and review articles dealing with the latest developments in the peaceful uses of atomic energy. Topics include nuclear chemistry and physics, plasma physics, accelerator characteristics, reactor economics and engineering, applications of isotopes, and radiation monitoring and safety.