Analysis of beryllium poisoning effect on liquid metal reactor with U–Be alloy fuel

  • Xiao-Liang Zou
  • Yun-Qing BaiEmail author
  • Ming-Huang Wang
  • Bing Hong


A liquid metal reactor (LMR) loaded with a fuel compound of uranium and beryllium (U–Be alloy fuel), which was cooled by a lead–bismuth eutectic alloy (PbBi), has been applied in Russian Alfa-class nuclear submarines. Because of the large amount of beryllium in the core, the reaction between the beryllium atoms and neutrons could result in the accumulation of 3He and 6Li, which are called the “poisoned elements” owing to their large thermal neutron capture cross section. The accumulation of neutron absorber can affect the performance of a reactor. In this study, the Super Multi-functional Calculation Program (SuperMC) code, which was developed by Institute of Nuclear Energy Safety Technology of the Chinese Academy of Sciences (INEST, CAS), was adopted to illustrate the influence of beryllium on an LMR.


LMR U–Be alloy fuel Beryllium poisoning Super Multi-functional Calculation Program 



The authors would like to show their great appreciation to other members of the FDS Team in this research.


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Copyright information

© China Science Publishing & Media Ltd. (Science Press), Shanghai Institute of Applied Physics, the Chinese Academy of Sciences, Chinese Nuclear Society and Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  • Xiao-Liang Zou
    • 1
    • 2
  • Yun-Qing Bai
    • 1
    Email author
  • Ming-Huang Wang
    • 1
  • Bing Hong
    • 1
    • 2
  1. 1.Key Laboratory of Neutronics and Radiation Safety, Institute of Nuclear Energy Safety TechnologyChinese Academy of SciencesHefeiChina
  2. 2.University of Science and Technology of ChinaHefeiChina

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