Study on the Assessment of Dose Equivalent due to the Inhalation of $^{222}Rn$ and Its Daughters in Indoor Air

실내 $^{222}Rn$$^{222}Rn$ 딸핵종에 의한 피폭선량 해석연구

  • Jun, Jae-Shik (Department of Physics, Chungnam National University) ;
  • Chai, Ha-Seok (Department of Physics, Chungnam National University) ;
  • Yi, Chul-Young (Department of Physics, Chungnam National University) ;
  • Cho, Hyuck (Department of Physics, Chungnam National University) ;
  • Ha, Chung-Woo (Korea Institute of Nuclear Safety)
  • 전재식 (충남대학교 물리학과) ;
  • 채하석 (충남대학교 물리학과) ;
  • 이철영 (충남대학교 물리학과) ;
  • 조혁 (충남대학교 물리학과) ;
  • 하정우 (한국원자력안전기술원)
  • Published : 1995.03.30

Abstract

Assesment of dose equivalent given by inhaled $^{222}Rn$ and its progeny has been carried out based on the concentrations of $^{222}Rn$ and its daughters in indoor air, and equilibrium factor between them measured by charcoal canister method and alpha spectrometry. Assuming the occupancy factor to be 0.8, and breathing rate to be $0.75m^3\;h^{-1}$ for public and $1.2m^3\;h^{-1}$ for occupational exposure, respectively, the regional lung dose 대valent and the resulting annual effective dose equivalent due to the inhalation of $^{222}Rn$ and its daughters in indoor air were evaluated by use of three different lung models, namely, Jacobi-Eisfeld, James-Birchall and ICRP model.

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