Subgroup Method for Resonance Self-Shielding Calculation and Research on Resonance Interference Effect

HUANG Shi-en; WANG Kan; YAO Dong

Dec. 2010

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HUANG Shi-en, WANG Kan, YAO Dong. Subgroup Method for Resonance Self-Shielding Calculation and Research on Resonance Interference Effect[J]. Nuclear Power Engineering, 2010, 31(S2): 5-8,20.

Citation:

HUANG Shi-en, WANG Kan, YAO Dong. Subgroup Method for Resonance Self-Shielding Calculation and Research on Resonance Interference Effect[J]. Nuclear Power Engineering, 2010, 31(S2): 5-8,20.

HUANG Shi-en, WANG Kan, YAO Dong. Subgroup Method for Resonance Self-Shielding Calculation and Research on Resonance Interference Effect[J]. Nuclear Power Engineering, 2010, 31(S2): 5-8,20.

Citation:

HUANG Shi-en, WANG Kan, YAO Dong. Subgroup Method for Resonance Self-Shielding Calculation and Research on Resonance Interference Effect[J]. Nuclear Power Engineering, 2010, 31(S2): 5-8,20.

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Subgroup Method for Resonance Self-Shielding Calculation and Research on Resonance Interference Effect

1. Department of Engineering Physics, Tsinghua University, Beijing, 100084, China;
2. Science and Technology on Reactor System Design Technology Laboratory, Chengdu, 610041, China

Received Date: 2010-09-18
Rev Recd Date: 2010-10-12

Available Online: 2025-07-31

Abstract

Abstract

We combined the subgroup method and the method of characteristics for neutron resonance self-shielding calculation,and programmed a resonance calculation code SGMOC.This code is based on the WIMSD format multi-group data library.The numerical results of SGMOC are in good agreement with those of MCNP,and thus SGMOC has high calculation precision and geometry flexibility.Based on the SGMOC code,we studied two modification methods for the resonance interference effect calculation.The conditional probability method had a correction effect about 30~180pcm for k_inf calculation of UO₂ fuel cell.The method by virtue of NJOY code had a correction effect about 20~130pcm for k_inf calculation of UO₂ fuel cell.
- Subgroup method,
- The method of characteristics,
- SGMOC,
- Resonance interference effect,
- Conditional probability