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随着计算模型规模与复杂性的不断提高、中子学自动建模程序的发展,中子学计算后处理已逐渐成为中子学分析工作的瓶颈。FDS团队为提高中子学计算后处理效率,利用科学计算可视化等相关技术,自主研发了集数据管理、预处理与可视化分析于一体的中子学可视化系统SVIP-N;并基于可编程图形处理(programm able Graphics Processing Unit,GPU)实现了体数据的裁剪可视化等高级功能。以国际热核实验堆ITER的中子通量密度场为测试用例进行的测试与初步应用实践表明,SVIP-N显著简化了中子学分析工作的流程,提高了分析效率,为中子学计算后处理提供了直观、高效、实用的可视化分析环境。 相似文献
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An accurate and fast sampling method was developed on the modeling of a voxel phantom called RadHUMAN for radiation protection of MC-based radiation transport and simulation.The segmented organ voxels,which were assigned with three dimensional(3D) coordinates,were simplified through a two-step hybrid sampling algorithm.Firstly,certain voxels were sampled into a coordinate matrix by the nearest neighbor sampling.Secondly,the coordinate matrix was renewed using a weighted sampling.To compare visualization with the sampling,the resultant matrix was used to extract the contour of organs/tissues for constructing polygon-surface phantom.The feasibility and effectiveness of the sampling method was vcriiied through the modeling of large organs(e.g.skeleton system) and application of transformation to MC computational geometries. 相似文献
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