中药辐照剂量分布的测量与计算

MEASUREMENT AND COMPUTED SIMULATION OF DOSE DISTRIBUTION IN IRRADIATED CHINESE MEDICINE

利用重铬酸银剂量计对以静态堆码方式进行辐照的某中药中的剂量分布进行测量,并利用蒙特卡罗方法进行了相应的模拟计算。计算结果表明统计误差在5%以内,计算值和实测值的相对偏差在20%以内,计算结果基本反映了该剂量分布的真实情况。

The dose distribution of ^60Co static γ-irradiation in irradiated Chinese medicine with a mode of pilling up in state was measured by using siluer dichromate dosimeter, and simulated with Monte Carlo method. The statistic errors of computed results were less than 5 %, and the relative errors between the computed data and the measured data at 19 corresponding measured points were less than 20% mostly, indicating the computed results basically reflected the actual dose distribution.