Design of the stripping unit and the electromagnetic analysis unit for the E//B NPA on HL-2A/2M tokamak

作     者：Linge ZANG Yufan QU Yuan LUO Weiping LIN 臧临阁;屈玉凡;罗圆;林炜平

作者机构：Southwestern Institute of PhysicsChengdu 610218People's Republic of China Key Laboratory of Radiation Physics and Technology of the Ministry of EducationInstitute of Nuclear Science and TechnologySichuan UniversityChengdu 610064People's Republic of China 

出 版 物：《Plasma Science and Technology》 (等离子体科学和技术（英文版）)

年 卷 期：2022年第24卷第6期

页      面：7-13页

核心收录：

学科分类：08[工学] 082701[工学-核能科学与工程] 0827[工学-核科学与技术] 

基　　金：the National Magnetic Confinement Fusion Energy R&D Program of China(Nos.2018YFE0310200 and 2019YFE03020003) Sichuan Science and Technology Program(No.2019YFH0128) 

主　　题：fast ion stripping room particle trajectory neutral particle analysis 

摘      要：An E//B neutral particle analyzer is under development for fast ion diagnosis on HL-2A/2 M *** stripping unit is composed of a stripping room(equipped with two differential tubes and a gas supply bellows),a vacuum chamber and a vacuum pumping *** stripping efficiency of the stripping room is calculated in the form of global efficiency R×f_(+1),where R is the non-scattered-away rate and f_(+1)is the fraction of charge state+*** magnetic field of the E//B analyzer is produced with a permanent *** yoke and the poles of the magnet are made of mild steel and the magnet plates are made of Nd Fe *** magnetic poles are specially designed to focus the ion trajectories and to increase the use rate of the *** shape of the magnet and the electric plates are carefully designed so that the ions are dispersed into two lines of H^(+) and D^(+) on the detector *** each line,the energy increases from 10 to 200 ke V from one side to another.