메뉴 건너뛰기
.. 내서재 .. 알림
소속 기관/학교 인증
인증하면 논문, 학술자료 등을  무료로 열람할 수 있어요.
한국대학교, 누리자동차, 시립도서관 등 나의 기관을 확인해보세요
(국내 대학 90% 이상 구독 중)
로그인 회원가입 고객센터 ENG
주제분류

추천
검색

논문 기본 정보

자료유형
학술저널
저자정보
이도연 (경희대학교 원자력공학과) 진용호 (경희대학교 원자력공학과) 곽민우 (경희대학교 원자력공학과) 김지우 (경희대학교 원자력공학과) 김광표 (경희대학교)
저널정보
한국방사선산업학회 방사선산업학회지 방사선산업학회지 제17권 제2호
발행연도
2023.6
수록면
161 - 172 (12page)
DOI
10.23042/radin.2023.17.2.161

이용수

표지
📌
연구주제
📖
연구배경
🔬
연구방법
🏆
연구결과
AI에게 요청하기
추천
검색

초록· 키워드

오류제보하기
Coal-fired power plants handle large quantities of coal, one of the most prominent NORM,and the coal ash produced after the coal is burned can be tens of times more radioactive than thecoal. Workers in these industries may be exposed to internal exposure by inhalation of particles whilehandling NORM. This study evaluated the size, concentration, particle shape and density, and radioactivityconcentrations of airborne suspended particles in the main processes of a coal-fired power plant. Finally,the internal radiation dose to workers from particle inhalation was evaluated. For this purpose, airborneparticles were collected by size using a multi-stage particle collector to determine the size, shape, andconcentration of particles. Samples of coal and coal ash were collected to measure the density andradioactivity of particles. The dose conversion factor and annual radionuclide inhalation amount werederived based on the characteristics of the particles. Finally, the internal radiation dose due to particleinhalation was evaluated. Overall, the internal radiation dose to workers in the main processes of coalfiredpower plants A and B ranged from 1.47×10-5~1.12×10-3 mSv y-1. Due to the effect of dust generatedduring loading operations, the internal radiation dose of fly ash loading processes in both coal-fired powerplants A and B was higher than that of other processes. In the case of workers in the coal storage yard atpower plants A and B, the characteristic values such as particle size, airborne concentration, and workingtime were the same, but due to the difference in radioactivity concentration and density depending onthe origin of the coal, the internal radiation dose by origin was different, and the highest was found wheninhaling coal imported from Australia among the five origins. In addition, the main nuclide contributingthe most to the internal radiation dose from the main processes in the coal-fired power plants wasthorium due to differences in dose conversion factors. However, considering the external radiation doseof workers in coal-fired power plants presented in overseas research cases, the annual effective dose ofworkers in the main processes of power plants A and B does not exceed 1 mSv y-1, which is the dose limitfor the general public notified by the Nuclear Safety Act. The results of this study can be utilized to identifythe internal exposure levels of workers in domestic coal-fired power plants and will contribute to theestablishment of a data base for a differential safety management system for NORM-handling industriesin the future.

목차

등록된 정보가 없습니다.

참고문헌 (0)

참고문헌 신청

함께 읽어보면 좋을 논문

논문 유사도에 따라 DBpia 가 추천하는 논문입니다. 함께 보면 좋을 연관 논문을 확인해보세요!

이 논문의 저자 정보

최근 본 자료

전체보기

댓글(0)

0