【摘 要】
：
根据AAPM TG43U1的推荐,使用MCNP5与EGSnrc两种蒙特卡罗程序计算6711型125I种子源剂量计算参数,并将两者计算结果和AAPM推荐值比较,得到相对偏差结果如下:剂量率常数,MCNP5为
【机 构】
：
中国原子能科学研究院 核数据测量与评价技术重点实验室,原子高科股份有限公司,
论文部分内容阅读
根据AAPM TG43U1的推荐,使用MCNP5与EGSnrc两种蒙特卡罗程序计算6711型125I种子源剂量计算参数,并将两者计算结果和AAPM推荐值比较,得到相对偏差结果如下:剂量率常数,MCNP5为0.62%,EGSnrc为2.07%;径向剂量函数,MNCP5为0.15%-5.12%,EGSnrc为0%-2.18%。两者计算结果均与推荐值符合得很好,而EGSnrc的计算结果更具优势。
According to the recommendation of AAPM TG43U1, two types of Monte Carlo program MCNP5 and EGSnrc were used to calculate the dose of 6711 125I seed source, and the relative deviation between the calculated results and AAPM recommendations was as follows: dose rate constant, MCNP5 0.62% for EGSnrc and 2.07% for EGSnrc. The radial dose function is 0.15% -5.12% for MNCP5 and 0% -2.18% for EGSnrc. The calculated results of both are in good agreement with the recommended values, while the calculation results of EGSnrc have more advantages.
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