Journal of Radiation Protection and Research
- 제21권1호
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- Pages.41-50
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- 1996
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- 2508-1888(pISSN)
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- 2466-2461(eISSN)
말단선량계의 광자선량당량환산인자에 대한 이론적 계산
A Theoretical Calculation of Photon Dose Equivalent Conversion Factor For Extremity Dosimeter
- Kim, Kwang-Pyo (Korea Atomic Energy Research Institute) ;
- Lee, Won-Keun (Kyung Hee University) ;
- Kim, Jong-Su (Korea Atomic Energy Research Institute) ;
- Yoon, Yeo-Chang (Korea Atomic Energy Research Institute) ;
- Yoon, Suk-Chul (Korea Atomic Energy Research Institute)
- 발행 : 1996.03.30
초록
중성자 및 전자 그리고 광자 수송코드인 MCNP 4A코드를 이 용하여 ANSI N13.32에 제안된 말단팬텀과 한국원자력연구소 제작한 말단팬텀 각각에 대하여 감마선량당량환산인자를 커마근사법에 근거하여 계산하였다. 본 계산은
In this study, the theoretical calculation of the air kerma-to-dose equivalent conversion factors was performed with a Monte Carlo N-Particle transport code for the two types of extremity phantom of the ANSI and the KAERI, respectively. Considering the distribution of absorbed dose due to the interaction of homogeneous Parallel broad beam of monoenergetic primary photons in the range between 15keV and 1.5MeV, the air kerma-to-dose equivalent conversion factors based on the kerma approximation were calculated. It is showed that all the theoretical conversion factors of the two types of the extremity phantom for the ANSI and the KAERI agree well with the experimental values of the ANSI N13.32 draft(1995) for each energy within 5.7%, maximum difference ratio, except for 13.6%, difference ratio in the case for the energy of less than 40keV. It is due to uncertainties of experiment occurred in the low X-ray energy range and geometry considered in the MCNP code.
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