基于面元模型的河蚌剂量转换系数的计算

发布时间：2018-04-21 15:57

本文选题：体素模型 + 面元模型　；参考：《辐射防护》2017年06期

【摘要】：基于河蚌开口与闭合两种形态,利用多边形网格(PM)与NURBS曲线技术对河蚌体素模型进行光滑和变形处理,分别建立河蚌开口面元模型和闭合面元模型,并通过MCNPX模拟计算河蚌在两种模型形态下的外照射剂量转换系数(外照射DCC)与内照射剂量转换系数(内照射DCC)。通过模拟结果可得出:(1)在外照射条件下,河蚌的外照射DCC的关系为:开口面元模型闭合面元模型;(2)在内照射条件下,河蚌的内照射DCC的关系为:闭合面元模型开口面元模型。
[Abstract]:Based on the opening and closing of the mussels, the polygonal meshes (PMMs) and the NURBS curves were used to smooth and deform the models, and the open surface models and the closed surface models of the mussels were established respectively. MCNPX simulation was used to calculate the external dose conversion coefficient (DCCs) and the internal dose conversion coefficient (ICDCCs) of mussels in two model forms. Through the simulation results, we can conclude that under the condition of external irradiation, the relationship of external irradiation DCC of mussels is as follows: open surface element model, closed surface model, and internal irradiation condition, the relation of DCC is: closed surface element model, open surface model.
【作者单位】：中国辐射防护研究院;
【分类号】：R144

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