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Safety assessment of Beishan pre-selection area for geological disposal of high-level radioactive waste in China

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Abstract

A safety assessment was conducted for Beishan region of Gansu, China, the results show that Se-79 and Cs-135 are the key nuclides released in the near field between 1000 and 4000 years after the closure of the repository. After 4000 years, Tc-99, Np-237 and U-235 are the key nuclides released in the near field. Within 5000 years after the closure of the repository, Se-79 is the key nuclide released from the dominant water fractures, and its peak release rate is 1 × 105 mol/m3, peak time 4000 a. At 20,000 years after the closure of the repository, Cs-135 is the key nuclide, and its peak release rate is 5 × 106 mol/m3, with a peak time of 100,000 a.

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Authors and Affiliations

  1. Beijing Research Institute of Uranium Geology, Beijing, China

    Honghui Li & Ju Wang

  2. China Institute for Radiation Protection, Taiyuan, Shanxi Province, China

    Honghui Li, Liang Mao, Shuaiwei Zhao, Meilan Jia, Yuchen Liu & Shulong Huang

Authors
  1. Honghui Li
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  2. Ju Wang
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  3. Liang Mao
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  4. Shuaiwei Zhao
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  5. Meilan Jia
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  6. Yuchen Liu
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  7. Shulong Huang
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Correspondence to Honghui Li or Ju Wang.

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Li, H., Wang, J., Mao, L. et al. Safety assessment of Beishan pre-selection area for geological disposal of high-level radioactive waste in China. J Radioanal Nucl Chem 331, 2573–2581 (2022). https://doi.org/10.1007/s10967-022-08300-6

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  • DOI: https://doi.org/10.1007/s10967-022-08300-6

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