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Iranian Journal of Medical Physics، جلد ۹، شماره ۳، صفحات ۱۹۳-۲۰۱
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عنوان انگلیسی Calculating CR-39 Response to Radon in Water Using Monte Carlo Simulation
چکیده انگلیسی مقاله Introduction CR-39 detectors are widely used for Radon and progeny measurement in the air. In this paper, using the Monte Carlo simulation, the possibility of using the CR-39 for direct measurement of Radon and progeny in water is investigated. Materials and Methods Assuming the random position and angle of alpha particle emitted by Radon and progeny, alpha energy and angular spectrum that arrive at CR-39, the calibration factor, and the suitable depth of chemical etching of CR-39 in air and water was calculated. In this simulation, a range of data were obtained from SRIM2008 software. Results Calibration factor of CR-39 in water is calculated as 6.6 (kBq.d/m3)/(track/cm2) that is corresponding with EPA standard level of Radon concentration in water (10-11 kBq/m3). With replacing the skin instead of CR-39, the volume affected by Radon and progeny was determined to be 2.51 mm3 for one m2 of skin area. The annual dose conversion factor for Radon and progeny was calculated to be between 8.8-58.8 nSv/(Bq.h/m3). Conclusion Using the CR-39 for Radon measurement in water can be beneficial. The annual dose conversion factor for Radon and progeny was calculated to be between 8.8-58.8 nSv/ (Bq.h/m3).
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نشانی اینترنتی http://ijmp.mums.ac.ir/article_152.html
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