基于赛道线圈的线圈主导型超导四极磁体磁场的分析计算

IF 3.6 1区 物理与天体物理 Q1 NUCLEAR SCIENCE & TECHNOLOGY
Chuang Shen, Ying-Shun Zhu, Fu-San Chen
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引用次数: 0

摘要

目前,粒子加速器中使用了三种超导四极磁体:\(\cos {2\theta }\), CCT 和蛇形。然而,这三种线圈结构都具有复杂的空间几何形状,给磁体制造和应变敏感超导体应用带来了困难。与现有的三种四极线圈相比,赛道四极线圈的形状和制造工艺简单,但理论研究较少。本文提出了线圈主导的赛道超导四极磁体中磁场的二维和三维分析表达式。磁场谐波和梯度的分析表达式是完全解析的,只取决于线圈的几何参数和电流密度。然后,应用遗传算法获得了线圈几何参数的解决方案,其场谐波的数量级为 \(10^{-4}\)。最后,考虑到加速器相互作用区的实际工程需要,介绍了高梯度、大孔径和小孔径赛道四极磁体的电磁设计实例,并分析了赛道四极线圈的应用前景。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Analytical computation of magnetic field in coil-dominated superconducting quadrupole magnets based on racetrack coils

Analytical computation of magnetic field in coil-dominated superconducting quadrupole magnets based on racetrack coils

Currently, three types of superconducting quadrupole magnets are used in particle accelerators: \(\cos {2\theta }\), CCT, and serpentine. However, all three coil configurations have complex spatial geometries, which make magnet manufacturing and strain-sensitive superconductor applications difficult. Compared with the three existing quadrupole coils, the racetrack quadrupole coil has a simple shape and manufacturing process, but there have been few theoretical studies. In this paper, the two-dimensional and three-dimensional analytical expressions for the magnetic field in coil-dominated racetrack superconducting quadrupole magnets are presented. The analytical expressions of the field harmonics and gradient are fully resolved and depend only on the geometric parameters of the coil and current density. Then, a genetic algorithm is applied to obtain a solution for the coil geometry parameters with field harmonics on the order of \(10^{-4}\). Finally, considering the practical engineering needs of the accelerator interaction region, electromagnetic design examples of racetrack quadrupole magnets with high gradients, large apertures, and small apertures are described, and the application prospects of racetrack quadrupole coils are analyzed.

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来源期刊
Nuclear Science and Techniques
Nuclear Science and Techniques 物理-核科学技术
CiteScore
5.10
自引率
39.30%
发文量
141
审稿时长
5 months
期刊介绍: Nuclear Science and Techniques (NST) reports scientific findings, technical advances and important results in the fields of nuclear science and techniques. The aim of this periodical is to stimulate cross-fertilization of knowledge among scientists and engineers working in the fields of nuclear research. Scope covers the following subjects: • Synchrotron radiation applications, beamline technology; • Accelerator, ray technology and applications; • Nuclear chemistry, radiochemistry, radiopharmaceuticals, nuclear medicine; • Nuclear electronics and instrumentation; • Nuclear physics and interdisciplinary research; • Nuclear energy science and engineering.
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