Study on the Coupled Calculation Method of Discrete-Ordinates and Point Kernel Integration

Yang Xuhui; Liu Fan; Wang Xiang; Cai Li; Marcus Seidl

doi:10.13832/j.jnpe.2024.S2.0261

Volume 45 Issue S2

Jan. 2025

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Yang Xuhui, Liu Fan, Wang Xiang, Cai Li, Marcus Seidl. Study on the Coupled Calculation Method of Discrete-Ordinates and Point Kernel Integration[J]. Nuclear Power Engineering, 2024, 45(S2): 261-267. doi: 10.13832/j.jnpe.2024.S2.0261

Citation:

Yang Xuhui, Liu Fan, Wang Xiang, Cai Li, Marcus Seidl. Study on the Coupled Calculation Method of Discrete-Ordinates and Point Kernel Integration[J]. Nuclear Power Engineering, 2024, 45(S2): 261-267. doi: 10.13832/j.jnpe.2024.S2.0261

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Study on the Coupled Calculation Method of Discrete-Ordinates and Point Kernel Integration

doi: 10.13832/j.jnpe.2024.S2.0261

Yang Xuhui^1
,,
Liu Fan²,
Wang Xiang^{1
,
,},
Cai Li²,
Marcus Seidl^{1, 3}

1.
College of Nuclear Science and Technology, Harbin Engineering University, Harbin, 150001, China
2.
China Nuclear Power Technology Research Intitute Co., Ltd., Shenzhen, Guangdong, 518026, China
3.
PreussenElektra GmbH, Hannover, 30457, Germany

Received Date: 2024-06-21
Rev Recd Date: 2024-09-21
Publish Date: 2025-01-06

Abstract

Abstract

To address the obvious shortcomings of most existing point kernel integration codes in shielding calculations, i.e., they produce errors of order of magnitude in the calculation process of large source and multi-layer shielding combinations. In this study, discrete-ordinates method is introduced in the point kernel integration calculation, and the characteristics of the two codes TORT and QADS are investigated. An interface code is written to realize the coupling of the two codes. The problems of poor accuracy of source discretization and lack of oblique angle decomposition technology in traditional point kernel integration codes are solved, and a simple geometric model is designed to study the feasibility of this method. The results show that the coupled discrete-ordinates and point kernel integral method greatly improves the computational accuracy in the calculation of deep penetration problems and can provide better results in the practice of radiation shielding calculation compared with the involved methods.
- TORT,
- QADS,
- Discrete-ordinates,
- Point kernel integration

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References(9)

References

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