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Kim, Hee Reyoung
Liquid Metal Magnetohydrodynamics Lab/ Environmental Radiation Safety Lab
Research Interests
  • Environmental radiation safety
  • Electromagnetic pump
  • NPP D&D technology

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Radiological safety assessment of lead shielded spent resin treatment facility with the treatment capacity of 1 ton/day

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Title
Radiological safety assessment of lead shielded spent resin treatment facility with the treatment capacity of 1 ton/day
Author
Byun, JaehoonChoi, Woo NyunKim, Hee Reyoung
Issue Date
2021-01
Publisher
한국원자력학회
Citation
NUCLEAR ENGINEERING AND TECHNOLOGY, v.53, no.1, pp.273 - 281
Abstract
The radiological safety of the spent resin treatment facility with a14C treatment capacity of 1 ton/day was evaluated in terms of the external and internal exposure of worker according to operation scenario. In terms of external dose, the annual dose for close work for 1 h/day at a distance of more than 1 m (19.8 mSv) satisfied the annual dose limit. For 8 h of close work per day, the annual dose exceeded the dose limit. For remote work of 2000 h/year, the annual dose was 14.4 mSv. Lead shielding was considered to reduce exposure dose, and the highest annual dose during close work for 1 h/day corresponded to 6.75 mSv. For close work of 2000 h/year and lead thickness exceeding 1.5 cm, the highest value of annual dose was derived as 13.2 mSv. In terms of internal exposure, the initial year dose was estimated to be 1.14E+03 mSv when conservatively 100% of the nuclides were assumed to leak. The allowable outflow rate was derived as 7.77E-02% and 2.00E-01% for the average limit of 20 mSv and the maximum limit of 50 mSv, respectively, where the annual replacement of the worker was required for 50 mSv.
URI
https://scholarworks.unist.ac.kr/handle/201301/32979
URL
https://www.sciencedirect.com/science/article/pii/S1738573320302436?via%3Dihub
DOI
10.1016/j.net.2020.06.012
ISSN
1738-5733
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