Track-structure simulations for charged particles.
Track-structure simulations for charged particles.
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DOI：
10.1097/hp.0b013e3182621292
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发表时间：
2012-11
期刊：
影响因子：
2.2
通讯作者：
Dingfelder M
中科院分区：
文献类型：
--
作者：
Dingfelder M
蒙特卡罗径迹结构模拟提供了带电粒子通过具有生物意义的凝聚体的辐射传输的详细和准确的图像。液态水作为软组织的替代品，在大多数蒙特卡罗轨道结构规范中使用。讨论了辐射输运和轨道结构模拟的基本理论，并强调了与压缩历史代码的区别。电子、质子、α粒子、轻离子和重离子的相互作用截面是轨道结构模拟所需的输入数据。以液态水为靶材，给出了不同的计算方法，包括平面波玻恩近似、介电理论和半经验方法。低能电子输运和轻离子输运作为特别感兴趣的领域被讨论。
Monte-Carlo track-structure simulations provide a detailed and accurate picture of radiation transport of charged particles through condensed matter of biological interest. Liquid water serves as surrogate for soft tissue and is used in most Monte-Carlo track-structure codes. Basic theories of radiation transport and track-structure simulations are discussed and differences to condensed history codes highlighted. Interaction cross sections for electrons, protons, alpha particles, light and heavy ions are required input data for track-structure simulations. Different calculation methods, including the plane-wave Born approximation, the dielectric theory, and semi-empirical approaches are presented using liquid water as a target. Low-energy electron transport and light ion transport are discussed as areas of special interest.