第33卷第4期 2013年
12月
核科学与工程
Nuclear Science and Engineering
Vol.33No.4
Dec.2013
人体MCNP重复结构辐射计算模型可视化方法
赵
凯1，2,王文1，范言昌1，程梦云1，龙鹏程1，胡丽琴1，吴宜灿,FDS团队
(1，中国科学院核能安全技术研究所，安徽合肥230031;2.合肥师范学院公共计算机教学部，安徽合肥230601）摘要：人体体素模型包含体素数目巨大，在应用MCNP(MonteCarloN-ParticleTransportCode)进行剂量计算中通常采用重复结构形式，但是却存在几何正确性校验困难等问题。本文研究一种快速和准确的人体辐射计算模型可视化方法。该方法通过MCNP输人文件中的栅元描述获取相同材料的体素信息，对其赋予三维坐标值并深度合并。在保持几何形状不变的前提下，成功构建器官模型，实现了对其进行三维显示与交互。测试结果验证了该方法对于人体重复结构计算模型几何校验的正确性与高效性。
关键调：体素；模型；MCNP；重复结构；可视化
中图分类号：TL371
文章标志码：A
文章编号：0258-0918(2013)04-0438-05
VisualizationoftheHumanRadiationComputation PhantomDescribedbyMCNPRepeatedStructure
ZHAO Kai-2, WANG Wen', FAN Yan-chang', CHENG Meng-yun'.
LONG Peng-cheng',HU Li-qin', WU Yi-can', FDS Team
(1. Institute of Nuclear Energy Safety Technology, Chinese Academy of Sciences, Hefei, Anhui, 230031, China;
2. Institute of Publie Computer, Hefei Normal University, Hefei, Anhui, 230601, China)
Abstract: The human voxel phantoms, which have a large number of voxels, often used repeated structure in MCNP (Monte Carlo N-Particle Transport Code) for its geometry description. However, it could bring difficulty in the human geometry verification. A faster and more accurate method is put forward in this paper for the visualization. The material voxels are got through the cell numbers in the input file. Then every voxel of certain material is assigned with a three-dimensional position so as to be deeply merged. Finally, the organ models are constructed without the shape changed which could be easily interacted in three-dimensional display. As a result, the experiment shows its correctness and high-performance for verifying the geometry of the human computational
收稿日期：2013-02-07；修回日期：2013-09-24
基金项目：国家自然科学基金91026004；中国科学院战略性先导科技专项XDA03040000；中国科学院知识创新工程重要方向项目095CF2R211.
作者简介：赵凯（1981一），男，安徽人，讲师，博士，现主要从事蒙特卡罗辐射输运计算自动建模方法研究 438