聚变堆中性束注入器磁屏蔽效能有限元分析  

Finite Element Analysis of Magnetic Shielding Efficiency of Neutral Beam Injector in Fusion Reactor

作　　者：胡光年 梁立振[2] 许吉禅 曹正坤 刘洋 HU Guangnian;LIANG Lizhen;XUJichan;CAO Zhengkun;LIU Yang(Anhui University of Science and Technology,Huainan 232001;Instituteof Plasma Physics,Chinese Academy of Sciences,Hefei 230031)

机构地区：[1]安徽理工大学,淮南232001 [2]中国科学院等离子体物理研究所,合肥230031

出　　处：《低温物理学报》2024年第3期179-186,共8页Low Temperature Physical Letters

基　　金：135CRAFT项目(项目英文名称:Comprehensive Research Facility for Fusion Technology,项目审批代码:2018-000052-73-01-001228)资助的课题.

摘　　要：聚变堆中性束注入系统被动磁屏蔽(PMS)装置的主要作用是保护中性束注入器(NBI)免受来自托卡马克弥散磁场的影响,并保护内部部件免受来自主动防护冷却线圈的辐射影响.本文主要通过COMSOL有限元分析软件,对简化的PMS装置模型进行磁屏蔽分析.通过分析得出磁屏蔽厚度,装置开孔以及缝隙对磁屏蔽的影响及规律.对未来聚变堆中性束注入系统被动磁屏蔽装置的工程建设提供理论依据.The main role of the passive magnetic shield(PMS)device in the fusion reactor neutral beam injection system is to protect the neutral beam injector(NBI)from the dispersive magnetic field from the Tokamak and to protect the internal components from the radiation from the active protective cooling coils.In this paper,COMSOL finite element analysis software is used to analyze the magnetic shielding of the simplified PMS device model.The influence and rule of magnetic shield thickness,device opening and gap on magnetic shield are obtained through analysis.The theoretical basis is provided for the engineering construction of passive magnetic shielding device for neutral beam injection system of fusion reactor in the future.

关 键 词：中性束注入 被动磁屏蔽 有限元分析 

分 类 号：TL631.24[核科学技术—核技术及应用]