Investigation on Thoron Progeny and Radon Progeny Concentrations in Living Environment and an Estimation of Their Effective Dose to the Public.

• 郭 秋菊

  日本原子力発電 (株) 放射線管理室

• 下 道國

  岐阜医療技術短期大学

• 湊 進

  名古屋工業技術研究所

• 池邉 幸正

  名古屋大学工学部原子核工学科

抄録

This study was conducted to investigate the concentrations of thoron (²²⁰Rn) progeny and radon (²²²Rn) progeny and to compare the radiation exposure due to them in different kinds of dwellings. The results indicated that thoron progeny concentrations indoors might strongly depend on the kinds of building material used in each dwelling, whereas the radon progeny concentration did not depend on the kinds of building material. The average thoron progeny concentration in the traditional Japanese dwellings with soil wall was 3.22Bqm^-3, and the radon progeny concentration in the dwellings was 8.35Bqm^-3. The annual effective dose equivalent to thoron progeny was 1.19mSv, which was higher than that of radon progeny (0.82mSv) in the same dwellings assuming an occupancy factor of 1.

収録刊行物

• 保健物理

  保健物理 30 (3), 219-226, 1995

  日本保健物理学会

キーワード

• thoron progeny concentration
• radon progeny concentration
• dwellings
• building materials
• annual effective dose equivalent
• exposure rate
• ²³²Th content
• ²³⁸U content
• public

詳細情報

• CRID: 1390282679264875136
• NII論文ID: 10002135536
• NII書誌ID: AN00228458
• DOI: 10.5453/jhps.30.219
• ISSN: 18847560
• ISSN: 03676110
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可