HL-3装置快离子损失探测器研制与实验研究

辐射防护 ›› 2024, Vol. 44 ›› Issue (5): 499-509.

HL-3装置快离子损失探测器研制与实验研究

许佳¹, 张洁², 韩玉箫², 唐昌建¹, 张轶泼²

1.四川大学物理学院,成都 610065;
2.核工业西南物理研究院,成都 610027

收稿日期:2024-06-03 出版日期:2024-09-20 发布日期:2024-11-05
通讯作者: 张轶泼。E-mail:zhangyp@swip.ac.cn
作者简介:许佳(1989—),女,2013年毕业于四川大学核工程与核技术专业,2016年毕业于四川大学粒子物理与原子核物理专业,获硕士学位,现为四川大学物理学院粒子物理与原子核物理专业在读博士研究生。E-mail:scu_xujia@163.com

Development and experimental research of fast ion loss detection system in HL-3 device

XU Jia¹, ZHANG Jie², HAN Yuxiao², TANG Changjian¹, ZHANG Yipo²

1. College of Physics, Sichuan University,Chengdu 610065;
2. Southwestern Institute of Physics,Chengdu 610027

Received:2024-06-03 Online:2024-09-20 Published:2024-11-05

摘要/Abstract

摘要： 托卡马克等离子体中的快离子损失会降低加热效率,快离子损失探测器(FILD)可以同时测量快离子损失的损失率、能量和螺距角,是监测和研究快离子损失现象的重要手段之一。基于中国环流三号(HL-3)装置的放电参数,首先通过模拟不同初始螺距角下80 keV氘离子在HL-3装置中的运动轨迹确认探头的安装位置。其次,通过模拟不同入射能量、磁场强度、入射角情况下氘离子的运动轨迹确认准直器尺寸。然后,通过模拟氘离子经过设计尺寸准直器后在掺银硫化锌[ZnS(Ag)]闪烁屏上的横向、纵向最远运动距离,确认闪烁屏尺寸,最后将设计好的基于掺银硫化锌[ZnS(Ag)]闪烁屏的快离子损失探测器安装在HL-3装置上进行实验研究。研究结果显示快离子损失探测器能成功测量到快离子损失信号,并监测到环向阿尔芬本征模(TAE)诱发的快离子损失。

关键词: 快离子损失, 能量, 螺距角, ZnS(Ag), 环向阿尔芬本征模

Abstract: Fast ion losses in tokamak plasma can reduce the heating efficiency. Fast ion loss detector (FILD) can simultaneously measure the loss rate, energy, and pitch angle of fast ions, making it one of the important means for monitoring and studying the phenomenon of fast ion losses. Based on the discharge parameters of the Chinese HL-3 device, the installation position of the probe is confirmed by simulating the motion trajectory of 80 keV deuterium ions in the HL-3 device with different initial pitch angles at first. Secondly, the collimator size is confirmed by simulating the motion trajectory of deuterium ions under different incident energy, magnetic field strength, and incident angles. Thirdly, by simulating the transverse and longitudinal maximum movement distance of deuterium ions on the silver-doped zinc sulfide ZnS(Ag) scintillator screen after passing through the collimator with designed size, the size of the scintillator screen is confirmed. Finally, the designed fast ion loss detector (FILD) based on the silver-doped zinc sulfide ZnS(Ag) scintillator screen is installed in the HL-3 device for experimental research. The research results show that the fast ion loss detector (FILD) can successfully measure the fast ion loss signal and monitor the fast ion loss induced by the toroidal Alfvén eigenmodes (TAE) mode.

Key words: fast ion loss, energy, pitch angle, ZnS(Ag), toroidal Alfvén eigenmodes

中图分类号:

TL812

许佳, 张洁, 韩玉箫, 唐昌建, 张轶泼. HL-3装置快离子损失探测器研制与实验研究[J]. 辐射防护, 2024, 44(5): 499-509.

XU Jia, ZHANG Jie, HAN Yuxiao, TANG Changjian, ZHANG Yipo. Development and experimental research of fast ion loss detection system in HL-3 device[J]. RADIATION PROTECTION, 2024, 44(5): 499-509.

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