Evaluation of specific absorbed fractions in voxel phantoms using Monte Carlo simulation.
Evaluation of specific absorbed fractions in voxel phantoms using Monte Carlo simulation.
复制标题
使用蒙特卡罗模拟评估体素模型中的特定吸收分数。
DOI：
10.1093/oxfordjournals.rpd.a006303
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发表时间：
2003
影响因子：
1
通讯作者：
K. Saito
中科院分区：
文献类型：
--
作者：
Sakae Kinase;M. Zankl;J. Kuwabara;K. Sato;H. Noguchi;J. Funabiki;K. Saito
有必要计算特定的吸收分数（SAF）的体素体模的内部剂量测定。为此，EGS4用户代码计算SAF使用体素幻影开发的基础上，现有的EGS4用户代码的外部剂量测定（UCPIXEL）。在所开发的程序中，可以模拟光子、电子和正电子在体素体模中的输运，特别是二次电子在体素体模中的输运。使用开发的代码对GSF“儿童”体素体模进行的SAF评价与GSF评价数据一致。此外，SAFs在成人体素phantomy在JAERI开发的评价使用开发的代码，并与几个已发表的数据进行了比较。发现器官自吸收的SAF取决于器官质量，并且会受到人体结构差异的影响。
There is a need to calculate specific absorbed fractions (SAFs) in voxel phantoms for internal dosimetry. For this purpose, an EGS4 user code for calculating SAFs using voxel phantoms was developed on the basis of an existing EGS4 user code for external dosimetry (UCPIXEL). In the developed code, the transport of photons, electrons and positrons in voxel phantoms can be simulated, particularly the transport simulations of secondary electrons in voxel phantoms. The evaluated SAFs for the GSF 'Child' voxel phantom using the developed code were found to be in good agreement with the GSF evaluated data. In addition, SAFs in adult voxel phantoms developed at JAERI were evaluated using the developed code and were compared with several published data. It was found that SAFs for organ self-absorption depend on the organ masses and would be affected by differences in the structure of the human body.