Verification of KURBUC-based ion track structure mode for proton and carbon ions in the PHITS code
Verification of KURBUC-based ion track structure mode for proton and carbon ions in the PHITS code
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DOI：
10.1088/1361-6560/abe65e
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发表时间：
2021-03-21
影响因子：
3.5
通讯作者：
Nikjoo, Hooshang
中科院分区：
文献类型：
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作者：
Matsuya, Yusuke;Kai, Takeshi;Nikjoo, Hooshang
粒子和重离子输运代码系统（PHITS）是一种通用的蒙特卡罗辐射输运模拟代码。它能够处理各种能量范围内的不同粒子类型。最新的 PHITS 开发能够基于 KURBUC 代码中的算法生成质子和碳离子（H-1(+)、C-12(6+)）的轨道结构，KURBUC 代码被认为是全球经过验证的轨道结构代码之一。该离子轨道结构模式被称为PHITS-KURBUC模式。在本研究中，使用 PHITS-KURBUC 模式计算范围、径向剂量分布和微剂量分布。随后，将它们与原始 KURBUC 和其他研究中获得的相应数据进行了比较。这些比较研究证实了 KURBUC 代码已成功包含在 PHITS 代码中。由于宏观和微观辐射传输代码之间的协同效应，该实现使得能够在复杂辐射场下详细计算微剂量和纳剂量量，例如具有扩展布拉格峰的质子束治疗。
The particle and heavy ion transport code system (PHITS) is a general-purpose Monte Carlo radiation transport simulation code. It has the ability to handle diverse particle types over a wide range of energy. The latest PHITS development enables the generation of track structure for proton and carbon ions (H-1(+), C-12(6+)) based on the algorithms in the KURBUC code, which is considered as one of the most verified track-structure codes worldwide. This ion track-structure mode is referred to as the PHITS-KURBUC mode. In this study, the range, radial dose distributions, and microdosimetric distributions were calculated using the PHITS-KURBUC mode. Subsequently, they were compared with the corresponding data obtained from the original KURBUC and from other studies. These comparative studies confirm the successful inclusion of the KURBUC code in the PHITS code. As results of the synergistic effect between the macroscopic and microscopic radiation transport codes, this implementation enabled the detailed calculation of the microdosimetric and nanodosimetric quantities under complex radiation fields, such as proton beam therapy with the spread-out Bragg peak.