Estimation of External and Internal Doses Resulting from the Use of Artificial Radon Spa Sources

Masahiro Hosoda; Tetsuo Ishikawa; Yumi Yasuoka; Sarata K. Sahoo; Shin-ichi Katoh; Masayuki Ogawa; Susumu Ogashiwa; Kazuki Iwaoka; Shinji Tokonami

doi:10.51083/radiatenvironmed.5.1_46

Regular Article

Estimation of External and Internal Doses Resulting from the Use of Artificial Radon Spa Sources

Masahiro Hosoda, Tetsuo Ishikawa, Yumi Yasuoka, Sarata K. Sahoo, Shin-ichi Katoh, Masayuki Ogawa, Susumu Ogashiwa, Kazuki Iwaoka, Shinji Tokonami

Author information

Masahiro Hosoda
Hirosaki University Graduate School of Health Sciences, 66-1 Hon-cho, Hirosaki, Aomori, Japan
Tetsuo Ishikawa
Fukushima Medical University, 1 Hikarigaoka, Fukushima, Japan
Yumi Yasuoka
Kobe Pharmaceutical University, 4-19-1 Motoyamakitamachi, Higashinada-ku, Kobe, Hyogo, Japan
Sarata K. Sahoo
National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage-ku, Chiba, Japan
Shin-ichi Katoh
Chuoh College of Medical Technology, 3-5-12 Tateishi, Katsushika-ku, Tokyo, Japan
Masayuki Ogawa
Chuoh College of Medical Technology, 3-5-12 Tateishi, Katsushika-ku, Tokyo, Japan
Susumu Ogashiwa
Chuoh College of Medical Technology, 3-5-12 Tateishi, Katsushika-ku, Tokyo, Japan
Kazuki Iwaoka
Chuoh College of Medical Technology, 3-5-12 Tateishi, Katsushika-ku, Tokyo, Japan
Shinji Tokonami
Hirosaki University, Institute of Radiation Emergency Medicine, 66-1 Hon-cho, Hirosaki, Aomori, Japan

Keywords: artificial radon spa sources, external dose, internal dose, effective dose

JOURNAL FREE ACCESS

2016 Volume 5 Issue 1 Pages 46-52

DOI https://njjn-jsjc-gov-cn-s-1416.res.gxlib.org.cn:443/rwt/1416/https/MSYXTLUQPJUB/10.51083/radiatenvironmed.5.1_46

Details

Abstract

In this study, four types of readily available artificial radon spa sources, sold as ceramic materials, were studied and dose estimations of the ²²²Rn emitted from them were made. When people use these sources in bathtub water for bathing, the equivalent dose received by the gonads has been estimated to be 0.40-0.63 nSv for each bathing time (30 min). When each source was put into tap water, the ²²²Rn concentrations each emitted ranged from 0.5 to 0.7 Bq L^-1. If a person drinks 500 mL of water with a ²²²Rn concentration of 18 Bq L^-1 every day, the personʼs maximum annual effective dose is estimated to be 12 nSv.

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