Study on Shielding and Weight Reduction Characteristics of Shadow Shield with Internally Tangent Structure in Small Space Reactor

Xie Lin; Liao Haoyang; Zhao Fulong; Wang Xianbo; Li Yufeng; Wang Xu; Tan Sichao; Tian Ruifeng

doi:10.13832/j.jnpe.2024.S2.0115

Volume 45 Issue S2

Jan. 2025

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Article Navigation > Nuclear Power Engineering > 2024 > 45(S2): 115-121

Xie Lin, Liao Haoyang, Zhao Fulong, Wang Xianbo, Li Yufeng, Wang Xu, Tan Sichao, Tian Ruifeng. Study on Shielding and Weight Reduction Characteristics of Shadow Shield with Internally Tangent Structure in Small Space Reactor[J]. Nuclear Power Engineering, 2024, 45(S2): 115-121. doi: 10.13832/j.jnpe.2024.S2.0115

Citation:

Xie Lin, Liao Haoyang, Zhao Fulong, Wang Xianbo, Li Yufeng, Wang Xu, Tan Sichao, Tian Ruifeng. Study on Shielding and Weight Reduction Characteristics of Shadow Shield with Internally Tangent Structure in Small Space Reactor[J]. Nuclear Power Engineering, 2024, 45(S2): 115-121. doi: 10.13832/j.jnpe.2024.S2.0115

Citation:

Xie Lin, Liao Haoyang, Zhao Fulong, Wang Xianbo, Li Yufeng, Wang Xu, Tan Sichao, Tian Ruifeng. Study on Shielding and Weight Reduction Characteristics of Shadow Shield with Internally Tangent Structure in Small Space Reactor[J]. Nuclear Power Engineering, 2024, 45(S2): 115-121. doi: 10.13832/j.jnpe.2024.S2.0115

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Study on Shielding and Weight Reduction Characteristics of Shadow Shield with Internally Tangent Structure in Small Space Reactor

doi: 10.13832/j.jnpe.2024.S2.0115

Xie Lin^{1, 2
,},
Liao Haoyang^{1, 2},
Zhao Fulong^{1, 2
,
,},
Wang Xianbo^{1, 2},
Li Yufeng³,
Wang Xu⁴,
Tan Sichao^{1, 2},
Tian Ruifeng^{1, 2}

1.
College of Nuclear Science and Technology, Harbin Engineering University, Harbin 150001, China
2.
Heilongjiang Provincial Key Laboratory of Nuclear Power System & Equipment, Harbin Engineering University, Harbin, 150001, China
3.
Aviation Industry Corporation of China First Aircraft Design and Research Institute, Xi’an, 710089, China
4.
China Nuclear Engineering Consulting Co., Ltd., Beijing, 100032, China

Received Date: 2024-07-23
Rev Recd Date: 2024-10-28
Publish Date: 2025-01-06

Abstract

Abstract

The mass of shadow shield of nuclear powered spacecraft is positively correlated with the power required by the mission. Aiming at the situation that the mass required for radiation shielding of high-power spacecraft is too large but the mass limit is too much, the shadow shield structure optimization analysis is carried out, and the structure optimization scheme and the comprehensive performance analysis method of the shield are put forward. Monte Carlo method is used to calculate the neutron transport in the inner and rear area of the shadow shield with internally tangent structure, and the effects of different internally tangent schemes on shielding effect, weight reduction effect and comprehensive performance of the combination of the two are analyzed. The results show that under the scheme of shielding effect weight factor of 0.4 and weight reduction effect weight factor of 0.6, the scheme using the tail internally tangent circle ring with the diameter less than 4 cm has improved the comprehensive shielding performance compared with the original scheme. Compared with B₄C material, LiH material has better overall shielding performance and can achieve shielding weight reduction without greatly affecting shielding capability. It provides ideas and analysis methods for further research on shielding weight reduction methods for high-power nuclear spacecraft.
- Nuclear powered spacecraft,
- Shadow shield,
- Weight reduction,
- Structural cut,
- Shielding comprehensive performance

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References(15)

References

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