Radiation dose distribution of liquid fueled thorium molten salt reactor
| Autor: | Jun Cai, Xiao-Bin Xia, Zhi-Hong Zhang, Jianhua Wang, Zhi-Cheng Qian, Chang-Yuan Li, Guo-Qing Zhang |
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| Rok vydání: | 2021 |
| Předmět: |
Nuclear and High Energy Physics
Materials science Applied physics Molten salt reactor 010308 nuclear & particles physics Nuclear engineering Thorium chemistry.chemical_element Radiation 01 natural sciences law.invention Distribution (mathematics) Nuclear Energy and Engineering chemistry law Shield 0103 physical sciences Neutron Variance reduction 010306 general physics |
| Zdroj: | Nuclear Science and Techniques. 32 |
| ISSN: | 2210-3147 1001-8042 |
| DOI: | 10.1007/s41365-021-00857-3 |
| Popis: | A liquid fueled thorium molten salt reactor (TMSR-LF), one of the Generation IV reactors, was designed by the Shanghai Institute of Applied Physics, Chinese Academy of Sciences. This study uses the`rt code to calculate the neutron and gamma dose rate distributions around the reactor. Multiple types of tallies and variance reduction techniques were employed to reduce calculation time and obtain convergent calculation results. Based on the calculation and analysis results, the TMSR-LF1 radiation shield with a 60-cm serpentine concrete layer and a 120-cm ordinary concrete layer is able to meet radiation requirements. The gamma dose rate outside the reactor biological shield was 16.1 mSv h−1; this is higher than the neutron dose rate of 3.71 × 10–2 mSv h−1. The maximum thermal neutron flux density outside the reactor biological shield was 1.89 × 103 cm−2 s−1, which was below the 1 × 105 cm−2 s−1 limit. |
| Databáze: | OpenAIRE |
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