【摘要】 基于Monte Carlo代码Fluka模拟计算了K-40、Ra-226、Th-232单位比活度在居室内产生的γ、X外照射空气吸收剂量率分别为0.0765、0.865、1.05nGy h-1,该计算值与其他研究者的研究结果吻合,从而获得了混凝土结构居室内的γ外照射三种放射性核素单位比活度与空气吸收剂量率之间的转换系数。更多还原

【Abstract】 Dose rate conversion coefficients are calculated for external exposures from sources of gamma-rays in walls of concreted buildings using the Fluka Monte Carlo code. The indoor dose rate in air per unit activity concentrations of K-40, Ra-226, Th-232 in concreted building wall are 0.0765, 0.865, 1.05 nGy h-1 per Bq kg-1 respectively. The results show good agreement with those of other report.更多还原