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PdI混合源剂量学参数的蒙特卡罗模拟

Monte Carlo Simulation of Dosimetric Parameters for Hybrid PdI Source in Brachytherapy
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摘要 依据美国医用物理学家协会(AAPM)在TG-43U1推荐的剂量学参数计算方法,针对671l型(3M)125I短程治疗源,用蒙特卡罗方法计算剂量率常数,并与相关数据进行了比较。在此基础上,计算研制的新型125I-103Pd混合源的剂量学参数,如剂量率常数、径向剂量函数和各向异性函数,计算结果对混合源的实验研究和应用具有一定指导意义。 According to dose calculation formula recommended by AAPM TG-43U1, dose rate constant of Model 6711 125I brachytherapy source was calculated by Monte Carlo meth- od. The calculation results were in good agreement with TG-43U1. Then, dose rate con- stant,radial dose function and anisotropy function of new hybrid PdI source were calculated by Monte Carlo method. Empiric equations were obtained for radial dose function.
作者 郑玉来 王强 张为在
机构地区 中国原子能科学研究院
出处 《同位素》 CAS 2013年第3期148-151,共4页 Journal of Isotopes
关键词 蒙特卡罗方法 剂量率常数 径向剂量函数 各向异性函数 Monte Carlo method dose rate constant radial dose function anisotropy func-tion
分类号 R45 [医药卫生—治疗学]
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2013年 第3期

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