An investigation on the use of removal-diffusion theory for BNCT treatment planning: a method for determining proper removal-diffusion parameters.
An investigation on the use of removal-diffusion theory for BNCT treatment planning: a method for determining proper removal-diffusion parameters.
复制标题
使用去除扩散理论进行 BNCT 治疗计划的研究：确定适当去除扩散参数的方法。
DOI：
10.1118/1.1386424
复制
发表时间：
2001
期刊：
影响因子：
3.8
通讯作者：
J. Niemkiewicz
中科院分区：
文献类型：
--
作者：
B. J. Albertson;T. Blue;J. Niemkiewicz
本文概述了一种确定适当的去除 - 扩散参数的方法，这些参数将用于去除 - 扩散理论计算，以用于硼中子俘获治疗（BNCT）计划。此外，本文表明，在适当选择去除 - 扩散参数的情况下，去除 - 扩散理论可为确定用于BNCT治疗计划的吸收剂量分布提供一种精确的计算技术。对于水中的四群一维计算，使用该方法确定了中子散射截面、中子去除截面、中子扩散系数和外推距离的值。然后将这些值用于一维DIF3D计算。DIF3D计算结果与针对相同几何结构进行的MCNP计算相比，最大偏差为2.5%。
This paper outlines a method for determining proper removal-diffusion parameters to be used in removal-diffusion theory calculations for the purpose of BNCT treatment planning. Additionally, this paper demonstrates that, given the proper choice of removal-diffusion parameters, removal-diffusion theory may provide an accurate calculation technique for determining absorbed dose distributions for the purpose of BNCT treatment planning. For a four-group, one-dimensional calculation in water, this method was used to determine values for the neutron scattering cross sections, neutron removal cross sections, neutron diffusion coefficients, and extrapolation distances. These values were then used in a one-dimensional DIF3D calculation. The results of the DIF3D calculation showed a maximum deviation of 2.5% from a MCNP calculation performed for the same geometry.