An Algorithm for Electron Depth-Dose Distributions in Multilayer Slab Absorbers
An Algorithm for Electron Depth-Dose Distributions in Multilayer Slab Absorbers
复制标题
多层板吸收器中电子深度-剂量分布的算法
DOI：
10.1143/jjap.20.249
复制
发表时间：
1981
影响因子：
1.5
通讯作者：
R. Ito
中科院分区：
文献类型：
--
作者：
Tatsuo Tabata;R. Ito
本文提出了一种计算平面平行电子束垂直入射到两层或三层平板吸收体上产生的深度剂量分布的算法。它是基于一个简单的模型，电子渗透整个界面，并利用以往制定的经验方程，以及新开发的。通过该算法得到的分布进行了比较，与现有的实验和Monte Carlo结果的入射能量从0.1到10兆电子伏的电子，在大多数情况下表现出良好的一致性。该算法被认为是有效的入射能量从0.1至20兆电子伏和吸收剂组成的板坯的原子序数从约5.6（聚苯乙烯）至82。
An algorithm to evaluate depth-dose distributions produced by plane-parallel electron beams normally incident on two- or three-layer slab absorbers has been developed. It is based on a simple model of electron penetration across the interface, and makes use of empirical equations previously formulated as well as ones newly developed. Distributions obtained by the algorithm have been compared with available experimental and Monte Carlo results for electrons of incident energies from 0.1 to 10 MeV, showing good agreement in most cases. The algorithm is considered to be valid for incident energies from 0.1 to 20 MeV and for absorbers consisting of slabs of atomic numbers from about 5.6 (polystyrene) to 82.