重离子加速器用18ghz ECR离子源六极设计研究

IF 0.2 Q4 PHYSICS, APPLIED
Shaoqing Wei, Zhan Zhang, Sangjin Lee, Sukjin Choi
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引用次数: 1

摘要

高电荷态电子回旋共振(ECR)离子源是影响重离子加速器性能的重要因素。本文采用低温超导体(LTS)制作了一个用于18ghz ECR离子源的六极线圈。对六极螺线管ECR离子源系统进行了赛道、分级赛道和鞍座等六极结构的实现和分析。在适当的径向约束场下,六极外半径越小,越有利于电磁阀的设计。通过比较导线长度、六极的最大外半径、六极末端的洛伦兹力和线圈内的最大磁场,选择鞍形六极。本文在鞍形六极的基础上,提出了一种新的六极设计——蛇形六极。通过对鞍形六极和蛇形六极端部洛伦兹力的比较分析,发现蛇形六极在ECR离子源系统中表现得更好。本文提出了蛇形六杆ECR离子源的建议设计。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A study on the design of hexapole in an 18-GHz ECR ion source for heavy ion accelerators
High charge state electron cyclotron resonance (ECR) ion source is important on the performance of heavy ion accelerators. In this paper, a low temperature superconductor (LTS) was used to make a hexapole coil for an 18-GHz ECR ion source. Several hexapole structures, including racetrack, graded racetrack, and saddle were implemented and analyzed for the hexapole-in-solenoid ECR ion source system. Under the appropriate radial confinement field, the smaller outer radius of hexapole can be better for the solenoid design. Saddle hexapole was selected by comparing the wire length, maximum outer radius of the hexapole, the Lorentz force at the end part of the hexapole and the maximum magnetic field in the coil. Based on saddle hexapole, a new design for hexapoles, the snake hexapole, was developed in this paper. By comparative analysis of the Lorentz force at the end part of the saddle and snake hexapoles, the snake hexapole is much better in the ECR ion source system. The suggested design for the ECR ion source with the snake hexapole is presented in this paper.
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来源期刊
CiteScore
0.40
自引率
33.30%
发文量
0
期刊介绍: Progress in Superconductivity and Cryogenics is the official publication of The Korea Institute of Applied Superconductivity and Cryogenics and the Korean Superconductivity Society. It was launched in 1999, and accepts original research articles and review papers on research on superconductivity and related fields of physics, electronic devices, materials science, large-scale applications for magnets, power and energy, and cryogenics. The Journal is published quarterly in March, June, September, and December each year. Supplemental issues are published occasionally. The official title of the journal is ''Progress in Superconductivity and Cryogenics'' and the abbreviated title is ''Prog. Supercond. Cryog.'' All submitted manuscripts are peer-reviewed by two reviewers. The text must be written in English. All the articles in this journal are KCI and SCOPUS as of 2015. The URL address of the journal is http://psac.kisac.org where full text is available. This work was supported by the Korean Federation of Science and Technology Societies grant funded by the Korea government.
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