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논문 기본 정보

자료유형
학술저널
저자정보
Ahmad Ciptadi Syuryavin (Kyungpook National Univ.) 박성진 (경북대학교) Muttaqin Margo Nirwono (Kyungpook National University) 이상훈 (경북대학교)
저널정보
한국원자력학회 Nuclear Engineering and Technology Nuclear Engineering and Technology 제52권 제10호
발행연도
2020.10
수록면
2,370 - 2,378 (9page)
DOI
https://doi.org/10.1016/j.net.2020.03.013

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초록· 키워드

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Building materials contribute significantly to the indoor radon and thoron levels. Therefore, parameters that influence the exhalation rates of radon and thoron from building material need to be analyzed closely. As a preliminary study, the effects of humidity on exhalation rates were measured using a system with an accumulation chamber and RAD7 detector for Korean brick, Korean soil, and Indonesian brick. Resulting doses to a person who resides in a room constructed from the building materials were assessed by UNSCEAR method for different air exchange rates. The measurements have revealed that Korean brick exhaled the highest radon and thoron while Indonesian brick exhaled the lowest thoron. Results showed that for a typical low dense material, radon and thoron exhalation rate will increase until reached its maximum at a certain value of humidity and will remain saturated above it. Analysis on concentration and effective dose showed that radon is strongly affected by air exchange rate (ACH). This is showed by about 66 times decrease of radon dose from 0.00 h?1 to those of 0.50 h?1 ACH and decrease by a factor of 2 from 0.50 h?1 to those of 0.80 h?1. In case of thoron, the ACH doesn't have significant effects on effective dose.

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