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Evaluation of workers’ internal exposure because of inhalation of radioactive aerosols in a plasma melting facility by using IMBA and TAURUS codes

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Abstract

The bursting of gas bubbles during the melting process in nuclear decommissioning generates radioactive aerosols, causing the internal exposure of workers. In contrast to external exposure, real-time measurements and visual management cannot be applied to internal exposure cases. This study evaluated the degree of internal exposure of workers at the Kozloduy Nuclear Power Plant plasma melting facility by analyzing the data on nuclides and concentrations collected from a HEPA filter. The radiation exposure scenario was selected considering the working environment, nuclides, concentrations, working time, activity median aerodynamic diameter, and chemical form. Workers’ internal-exposure dose rates were evaluated using the IMBA (integrated modules for bioassay analysis) code.

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Acknowledgements

This study was supported by the Nuclear Power Core Technology Development Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP), granted financial resource from the Ministry of Trade, Industry & Energy, Republic of Korea. (No. 20214000000070). This study was supported by the Nuclear Power Core Technology Development Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP), granted financial resource from the Ministry of Trade, Industry & Energy, Republic of Korea. (No.20191510301240)

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  1. Department of Nuclear Engineering, Chosun University, 309 Pilmun-daero, Dong-gu, Gwangju, 61452, KS008, Republic of Korea

    Hak Yun Lee, Ki Tae Yang, Jun Yeol An, Sun Il Kim & Jong Soon Song

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  1. Hak Yun Lee
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  2. Ki Tae Yang
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  3. Jun Yeol An
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  4. Sun Il Kim
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Correspondence to Sun Il Kim or Jong Soon Song.

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Lee, H.Y., Yang, K.T., An, J.Y. et al. Evaluation of workers’ internal exposure because of inhalation of radioactive aerosols in a plasma melting facility by using IMBA and TAURUS codes. J Radioanal Nucl Chem 331, 4397–4404 (2022). https://doi.org/10.1007/s10967-022-08512-w

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  • DOI: https://doi.org/10.1007/s10967-022-08512-w

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