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Iranian Journal of Medical Physics، جلد ۱۷، شماره ۲، صفحات ۶۶-۷۴
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چکیده فارسی مقاله
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عنوان انگلیسی Absorbed Dose Assessment from Short-Lived Radionuclides of Radon (222Rn) Decay Chain in Lung Tissue: A Monte Carlo Study
چکیده انگلیسی مقاله Introduction: Internal exposure to radon gas progeny can lead to serious biologic damages to the lung tissue. The aim of this study was to evaluate the absorbed dose by lung tissue due to the exposure from short-lived radioactive products of radon (222Rn) decay using Monte Carlo simulation. Material and Methods: A lung equivalent phantom including 64 air sacs was simulated by MCNPX code. Then, the absorbed dose from short-lived radioactive products of radon decay chain including 218Po, 214Po, 214Pb and 214Bi was calculated for both suspended and deposited states of daughter nuclides inside the lung. Results: The results showed that alpha decay has more contribution to the lung absorbed dose in comparison with the beta and gamma decay. Furthermore, the received dose by the lung was higher when the radon progenies were deposited inside the lung so that the maximum received dose to lung was 100 times higher than that of calculated in suspended state. Conclusion: Short-lived daughter radionuclides of radon decay chain, especially alpha emitter products, can be considered as dangerous internal radiation sources. The biological effects of these daughter radionuclides is more severe when are suspended inside the respiratory system.
کلیدواژه‌های انگلیسی مقاله Radon, Radon Progeny, Lung, Dosimetry, Monte Carlo Method
نویسندگان مقاله | Zohreh Danaei
Physics Department, Hakim Sabzevari University, Sabzevar, Iran


| Hamid Reza Baghani
Physics Department, Hakim Sabzevari University, Sabzevar, Iran


| Ali Asghar Mowlavi
Physics Department,Hakim Sabzevari University, Sbazevar, Iran
نشانی اینترنتی http://ijmp.mums.ac.ir/article_12971.html
فایل مقاله اشکال در دسترسی به فایل - ./files/site1/rds_journals/145/article-145-2271478.pdf
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زبان مقاله منتشر شده en
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نوع مقاله منتشر شده Original Paper
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