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Accident source term and radiological consequences of a small modular reactor

Nuclear Science and Techniques 2023年第3期34卷 82-92页

作者： Hai-Ying Chen Fu-Dong Liu Shao-Wei Wang Yi-Chuan Wang Chao Xu Qiao-Feng Liu Nuclear and Radiation Safety Center Ministry of Ecology and EnvironmentBeijing 102401China State Environmental Protection Key Laboratory of Nuclear and Radiation Safety Regulatory Simulation and Validation Beijing 102401China

Considering the growing global demand for energy and the need for countries to achieve climate goals,there is an increasing global interest in small modular reactors(SMRs)and their *** source term and radiological consequence evaluations of SMRs are key components of nuclear and radiation safety reviews,which affect the site,exclusion area(EAB),and low population zone outer *** on the design characteristics of the SMR and accident analysis results,a theoretical model of a whole-core fuel cladding damage accident was constructed to study the radioactivity released into the environment and its *** accident source term and radiation dose calculation models were established to analyze the released amounts of radionuclides and the total effective dose affecting individuals at the site *** results showed that the amount of radionuclides released into the environment after a whole-core fuel cladding damage accident reached 10^(14) Bq,among which the release amount of ^(133)Xe was the *** total effective dose at the site boundary 30 days after the accident was 8.65 *** highest total effective dose affecting individuals occurred to the *** results of the accident source term and radiological consequence provide technical support for site boundary dose assessments and reviews of SMRs.

关键词： Small modular reactor Accident Source term Radiological consequence total effective dose

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