摘要
使用蒙特卡罗方法计算6711型125I种子源参数,采用新的种子源几何模型和新的光子截面数据(mcplib04),根据AAPM TG-43U1推荐的剂量参数计算公式,可以获得6711型125I种子源各参数。与AAPMTG-43U1推荐值比较,剂量常数相差0.62%,径向剂量函数值最大相差5.12%,最小相差0.15%。
Dosimetry parameters of Model 6711 125I seed source was simulated by using MCNP5,with a new geometric model of the 125I seed source and a new photon section data(mcplib04).Comparing to the AAPM TG-43U1 recommendation,our simulation results are satisfactory: the dose rate constant is in agreement within 0.62%,and the radial dose function within 0.15% to 5.12%.
出处
《核技术》
CAS
CSCD
北大核心
2012年第5期361-364,共4页
Nuclear Techniques