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- Title
High-radiation-exposure tasks in Korean pressurized heavy-water reactors.
- Authors
Song, Changju; Kong, Tae Young; Kim, Seongjun; Son, Jinho; Kim, Jiung; Park, Jaeok; Kim, Hee Geun; Kim, Yongkwon
- Abstract
This study analysed the occupational dose in Korean pressurized heavy-water reactors (PHWRs) and identified tasks involving high radiation exposure. The average individual dose was sufficiently low to be below the annual effective dose limit for radiation workers and is even lower than the dose limit for the general public. However, some workers received relatively higher doses than others. Furthermore, most PHWR workers are exposed to radiation during planned maintenance periods. In this study, the radiation dose was normalized (radiation dose per unit time) to determine the high-radiation-exposure tasks in Korean PHWRs. Consequently, end-fitting lapping, delayed neutron tube work and fuel channel fixed-end change tasks were identified as high-radiation-exposure tasks in Korean PHWRs. If appropriate radiation protection measures are prioritized for the identified high-dose exposure tasks, optimization of radiological protection will be effectively achieved by reducing the dose that is relatively higher than the average.
- Subjects
PRESSURIZED water reactors; RADIATION protection; RADIATION doses; RADIATION exposure; UNITS of time
- Publication
Radiation Protection Dosimetry, 2024, Vol 200, Issue 8, p745
- ISSN
0144-8420
- Publication type
Article
- DOI
10.1093/rpd/ncae100