基于体素模型的外照射剂量精确评估方法研究  

Study on Accurate External Radiation Dose Assessment Method Based on Voxel Model

作　　者：李廷[1] 尚雷明[1] 何桃[1,2] 龙鹏程[1] 程梦云[1] 

机构地区：[1]中国科学院核能安全技术研究所,安徽合肥230031 [2]中国科学技术大学,安徽合肥230027

出　　处：《原子能科学技术》2013年第B12期526-530,共5页Atomic Energy Science and Technology

基　　金：国家磁约束核聚变能发展研究专项资助项目(2011GB113006);中国科学院战略性先导科技专项资助项目(XDA03040000);国家自然科学基金资助项目(91026004;11305205);中国科学院知识创新工程重要方向资助项目(095CF2R211;KJCX2-YW-N35);安徽省高校自然科学基金资助项目(KJ2013B248)

摘　　要：辐射环境下工作人员的剂量评估是辐射防护研究的重要内容之一。考虑到人员所处辐射场的不均匀性以及不同器官辐射敏感性的不同,需对人体及器官的辐射剂量进行精确评估。基于FDS团队自主构建的高精度中国辐射虚拟人Rad-HUMAN体素模型,本文发展了一种人体外照射剂量精确评估方法,并与传统人体剂量评估方法进行对比。结果表明,基于体素模型的人体器官辐射剂量评估方法能实现器官级的辐射剂量精确评估。目前该方法已集成至FDS团队自主开发的核与辐射安全仿真系统RVIS中。Worker＇s radiation dose assessment in radiation environment is an important aspect of radiation protection research. Accordting to the inhomogeneity of the radiation field and difference of organs radiation-sensitive, it is necessary for accurate assessment of the radiation dose of workers. Based on Chinese high-precision radiation virtual human model Rad-HUMAN developed by FDS team, an accurate human dose assessment method was developed. The results show that the voxel-based organs dose assessment method can achieve precise organ-level dose compared with traditional methods. At present, the method has been integrated into the nuclear and radiation safety simulation system RVIS, originally developed by FDS team.

关 键 词：外照射 精确剂量评估 体素模型 Rad-HUMAN 

分 类 号：TL77[核科学技术—辐射防护及环境保护]