Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2019, Vol. 30 ›› Issue (1): 10 doi: 10.1007/s41365-018-0539-1

• NUCLEAR ENERGY SCIENCE AND ENGINEERING • Previous Articles     Next Articles

Application of FLUKA and OpenMC in coupled physics calculation of target and subcritical reactor for ADS

Ze-Long Zhao1,2 • Yong-Wei Yang1,2 • Shuang Hong1,3   

  1. 1 Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
    2 School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
    3 University of Science and Technology, Hefei 230026, China
  • Received:2017-10-27 Revised:2018-03-26 Accepted:2018-04-26
  • Contact: Yong-Wei Yang E-mail:yangyongwei@impcas.ac.cn
  • Supported by:
    This work was supported by the ‘‘Strategic Priority Research Program’’ of the Chinese Academy of Sciences (No. XDA03030102).
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Ze-Long Zhao, Yong-Wei Yang, Shuang Hong. Application of FLUKA and OpenMC in coupled physics calculation of target and subcritical reactor for ADS.Nuclear Science and Techniques, 2019, 30(1): 10     doi: 10.1007/s41365-018-0539-1

Abstract: The study of accelerator-driven subcritical reactor systems (ADSs) has been an important research topic in the field of nuclear energy for years. The main code applied in ADS research is MCNPX, which was developed by Los Alamos National Laboratory. We studied the application of the open-source Monte Carlo codes FLUKA and OpenMC to a coupled ADS calculation. The FLUKA code was used to simulate the reaction of highenergy protons with the nucleus of the target material in the ADS, which produces spallation neutrons. Information on the spallation neutrons, such as their energy, position, direction, and weight, can be recorded by a user-defined routine called FLUSCW provided by FLUKA. Then, the information was stored in an external neutron source file in HDF5 format by using a conversion code, as required by the OpenMC calculation. Finally, the fixed-source calculation function of OpenMC was applied to simulate the transport of spallation neutrons and obtain the distribution of the neutron flux in the core region. In the coupled calculation, the high-energy cross-section library JENDL4.0/ HE in ACE format produced by NJOY2016 was applied in the OpenMC transport simulation. The OECD–ADS benchmark problem was calculated, and the results were compared with those obtained using MCNPX. It was found that the flux calculations performed by FLUKA–OpenMC and MCNPX were in agreement, so the coupling calculation method for ADS is reasonable and feasible.

Key words: Accelerator-driven subcritical system, MCNPX, FLUKA, OpenMC, JENDL4.0/HE, NJOY2016