Harmonic analysis and field quality improvement of an HTS quadrupole magnet for a heavy ion accelerator

IF 0.2 Q4 PHYSICS, APPLIED
Zhan Zhang, Shaoqing Wei, Sangjin Lee, H. Jo, Do Gyun Kim, Jongwon Kim
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引用次数: 7

Abstract

In recent years, the iron-dominated high-temperature superconductor (HTS) quadrupole magnets are being developed for heavy ion accelerators. Field analyses for iron-dominated quadrupole magnets were based on the normal-conducting (NC) quadrupole magnet early in the development for accelerators. Some conclusions are still in use today. However, the magnetic field of iron-dominated HTS quadrupole magnets cannot fully follow these conclusions. This study established an HTS quadrupole magnet model and an NC quadrupole magnet model, respectively. The harmonic characteristics of two magnets were analyzed and compared. According to the comparison, the conventional iron-dominated quadrupole magnets can be designed for maximum field gradient; the HTS quadrupole magnet, however, should be considered with varying field gradient. Finally, the HTS quadrupole magnet was designed for the changing field gradient. The field quality of the design was improved comparing with the result of the previous study. The new design for the HTS quadrupole magnet has been suggested.
重离子加速器用高温超导四极磁体的谐波分析及场质量改进
近年来,铁主导型高温超导体(HTS)四极磁体被开发用于重离子加速器。在加速器研制初期,铁主导四极磁体的磁场分析是基于正导四极磁体的。有些结论至今仍在使用。然而,铁主导的高温超导四极磁体的磁场并不能完全遵循这些结论。本研究分别建立了高温超导四极磁铁模型和数控四极磁铁模型。分析比较了两种磁体的谐波特性。通过比较,传统的铁主导四极磁体可以设计出最大的磁场梯度;然而,高温超导四极磁体应考虑变场梯度。最后,针对变场梯度设计了高温超导四极磁体。与以往的研究结果相比,提高了设计的现场质量。提出了高温超导四极磁体的新设计方案。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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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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