Validation with CENDL-NP Thermal Criticality Benchmark

Wu Haicheng; Tan Yingcan; Zhang Huanyu; Jin Yongli; Wang Wenming; Liu Ping

doi:10.13832/j.jnpe.2014.S2.0176

Volume 35 Issue S2

Feb. 2025

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Wu Haicheng, Tan Yingcan, Zhang Huanyu, Jin Yongli, Wang Wenming, Liu Ping. Validation with CENDL-NP Thermal Criticality Benchmark[J]. Nuclear Power Engineering, 2014, 35(S2): 176-178. doi: 10.13832/j.jnpe.2014.S2.0176

Citation:

Wu Haicheng, Tan Yingcan, Zhang Huanyu, Jin Yongli, Wang Wenming, Liu Ping. Validation with CENDL-NP Thermal Criticality Benchmark[J]. Nuclear Power Engineering, 2014, 35(S2): 176-178. doi: 10.13832/j.jnpe.2014.S2.0176

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Validation with CENDL-NP Thermal Criticality Benchmark

doi: 10.13832/j.jnpe.2014.S2.0176

China Institute of Atomic Energy, China Nuclear Data Center, Beijing, 102413, China

Received Date: 2014-10-20
Rev Recd Date: 2014-12-19

Available Online: 2025-02-15

Abstract

Abstract

To solve the overestimation of k_eff in the thermal criticality experiment using CENACE-1.0 data library, the evaluated nuclear data library CENDL-NP-1.0 were validated with several kinds of thermal criticality benchmarks. By analyzing the trends and the relativities among the k_eff results, it is found that the direct contributions to the overestimation of k_eff calculation results for the metal thermal installation with high uranium enrichment are the（n,f）,（n,γ） cross sections and the nubar of 235 U in thermal energy region.
- Criticality benchmark validation,
- thermal spectrum,
- CENACE,
- CENDL-NP