Two-dimensional dose distribution around a commercial 125I seed.
Two-dimensional dose distribution around a commercial 125I seed.
复制标题
商业 125I 种子周围的二维剂量分布。
DOI：
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发表时间：
1988
期刊：
影响因子：
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通讯作者：
D. E. Raeside
中科院分区：
文献类型：
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作者：
G. S. Burns;D. E. Raeside
采用蒙特卡罗方法研究浸没在水模体中的3M公司型号6711 125 I粒子周围的剂量分布。每单位放射性的剂量率数据表示为围绕种子的63个点的矩阵。以图形方式显示了两个相互垂直方向的相对剂量数据，并与目前唯一可用的另一种125 I粒子（3M公司型号6702 125 I粒子）的相应数据进行了比较。与6702相对剂量分布相比，6711相对剂量分布随着与种子的距离而更快地降低。研究了由端部焊缝厚度变化产生的6711籽晶剂量分布的不确定性，发现在某些点上存在很大的不确定性。
The Monte Carlo method was used to investigate the dose distribution around a 3M Company model 6711 125I seed immersed in a water phantom. Dose rate per unit activity data are presented as a matrix of 63 points surrounding the seed. Relative dose data are presented graphically for two mutually perpendicular directions and compared with the corresponding data for the only other 125I seed currently available, the 3M Company model 6702 125I seed. The 6711 relative dose distribution decreases more rapidly with distance from the seed than does the 6702 relative dose distribution. Uncertainties in the 6711 seed dose distribution produced by end-weld thickness variations were investigated and found to be substantial at certain points.