Calculation of Source Terms for Water-cooled Fusion Reactor Based on Deviation Effect Nuclide Screening Method

Guo Qingyang; Zhang Jingyu; Zhang Huijie; Wang Qingbin

doi:10.13832/j.jnpe.2022.05.0001

Volume 43 Issue 5

Oct. 2022

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Article Navigation > Nuclear Power Engineering > 2022 > 43(5): 1-6

Guo Qingyang, Zhang Jingyu, Zhang Huijie, Wang Qingbin. Calculation of Source Terms for Water-cooled Fusion Reactor Based on Deviation Effect Nuclide Screening Method[J]. Nuclear Power Engineering, 2022, 43(5): 1-6. doi: 10.13832/j.jnpe.2022.05.0001

Citation:

Guo Qingyang, Zhang Jingyu, Zhang Huijie, Wang Qingbin. Calculation of Source Terms for Water-cooled Fusion Reactor Based on Deviation Effect Nuclide Screening Method[J]. Nuclear Power Engineering, 2022, 43(5): 1-6. doi: 10.13832/j.jnpe.2022.05.0001

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Calculation of Source Terms for Water-cooled Fusion Reactor Based on Deviation Effect Nuclide Screening Method

doi: 10.13832/j.jnpe.2022.05.0001

1.
Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China
2.
School of Nuclear Science and Engineering, North China Electric Power University, Beijing, 102206, China

Received Date: 2021-11-09
Rev Recd Date: 2022-01-25

Available Online: 2022-10-12

Publish Date: 2022-10-12

Abstract

Abstract

The activated corrosion products are the main radioactive source terms in the normal operation of water-cooled fusion reactor, and are generally solved by analytical methods, but analytical methods cannot improve the calculation speed while meeting the accuracy requirements. In this paper, a nuclide screening method based on quantitative deviation effect analysis is proposed, which defines the two parameters of radioactivity and dose rate as deviation effect indicators. By analyzing the deviation effect indicators, nuclides meeting the acceptance criteria are screened to determine the target nuclides required for calculation. This analysis method can not only meet the accuracy requirements, but also improve the calculation efficiency. This nuclide screening method is applied to the source term analysis of activated corrosion products in the International Thermonuclear Experimental reactor (ITER) limiter-outer cladding water-cooled loop (LIM-OBB), and compared with the high-precision benchmark solution under this issue. The results show that the relative deviations of the specific activity calculation results of important activated corrosion product nuclides such as ⁵⁷Co, ⁵⁸Co, ⁵⁵Fe, and ⁵¹Cr compared with the benchmark solution are all controlled within 1.5%; The calculation efficiency of the nuclide screening method is 279 times higher than that of the benchmark solution.
- Activated corrosion products,
- Water-cooled fusion reactor,
- Deviation effect,
- Calculation efficiency,
- Source term analysis

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References

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