土壤中光子致地表光子辐射剂量率转换系数的EGS模拟

Abstract

Abstract: The conversion coefficients of photondose rate above ground from photon emitters in soil were calculated using the EGS Monte Carlo code. Calculations were performed for 16 photon energies from 50 keV to 3 MeV and for 30 plane radius from 5 cm to 200 m. The conversion of photondose rate above ground from specific activity of nuclides form ²³⁸U decay chain, ²³²Th decay chain and ⁴⁰K in soil were also given. The comparison between these results and the data deduced previously by otherauthors indicates a good agreement, less than 10% difference.

Key words: Photon dose rate, Soil, Conversion coefficient, EGS

CLC Number:

TL72

Hua Zhengdong, Hong Yun, Sui Guangkai, Dai Jiwei. Calculation of Dose Rate Conversion Coefficients for External Exposure to Photon emitters in Soil Based on EGS Monte Carlo Code[J].RADIATION PROTECTION BULLETIN, 2014, 34(3): 16-19.

References 13

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Calculation of Dose Rate Conversion Coefficients for External Exposure to Photon emitters in Soil Based on EGS Monte Carlo Code

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