Design of superconducting bending magnets and an integral compensation method for the Hefei Advanced Light Facility

IF 1.4 3区物理与天体物理 Q3 INSTRUMENTS & INSTRUMENTATION

Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment Pub Date : 2025-09-29 DOI:10.1016/j.nima.2025.171044

Jincheng Xia , Chao Chen , Xiaotao Zhang , Zhenghe Bai , Xudong Wang , Zian Zhu , Jianhao Xu

{"title":"Design of superconducting bending magnets and an integral compensation method for the Hefei Advanced Light Facility","authors":"Jincheng Xia , Chao Chen , Xiaotao Zhang , Zhenghe Bai , Xudong Wang , Zian Zhu , Jianhao Xu","doi":"10.1016/j.nima.2025.171044","DOIUrl":null,"url":null,"abstract":"<div><div>Hefei Advanced Light Facility (HALF) is a fourth-generation synchrotron radiation source under construction, with a beam energy of 2.2 GeV and a radiation spectrum primarily covering the VUV to soft X-ray range. To extend its photon energy into the hard X-ray regime, HALF plans to replace two normal-conducting bending magnets with 6 T superconducting bending magnets (Superbends). This paper presents two Superbend electromagnetic schemes to address the challenge of achieving high peak magnetic fields within a limited magnetic field integral. To resolve the integral field mismatch between the Superbends and the original bending magnets, an integral compensation method is proposed as a potential solution for Scheme 1. Additionally, the impact of both schemes on the storage ring beam dynamics is analyzed, and the lattice is optimized to preserve the original performance. To further assess the engineering feasibility of Scheme 1, mechanical and cryogenic system designs are carried out. A preliminary quench protection strategy is also proposed to ensure the safe operation of the ReBCO coils.</div></div>","PeriodicalId":19359,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment","volume":"1082 ","pages":"Article 171044"},"PeriodicalIF":1.4000,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0168900225008460","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"INSTRUMENTS & INSTRUMENTATION","Score":null,"Total":0}

引用次数: 0

Abstract

Hefei Advanced Light Facility (HALF) is a fourth-generation synchrotron radiation source under construction, with a beam energy of 2.2 GeV and a radiation spectrum primarily covering the VUV to soft X-ray range. To extend its photon energy into the hard X-ray regime, HALF plans to replace two normal-conducting bending magnets with 6 T superconducting bending magnets (Superbends). This paper presents two Superbend electromagnetic schemes to address the challenge of achieving high peak magnetic fields within a limited magnetic field integral. To resolve the integral field mismatch between the Superbends and the original bending magnets, an integral compensation method is proposed as a potential solution for Scheme 1. Additionally, the impact of both schemes on the storage ring beam dynamics is analyzed, and the lattice is optimized to preserve the original performance. To further assess the engineering feasibility of Scheme 1, mechanical and cryogenic system designs are carried out. A preliminary quench protection strategy is also proposed to ensure the safe operation of the ReBCO coils.

查看原文本刊更多论文

合肥先进光设施超导弯曲磁体设计及积分补偿方法

合肥先进光设施（HALF）是正在建设的第四代同步加速器辐射源，光束能量为2.2 GeV，辐射光谱主要覆盖VUV到软x射线范围。为了将光子能量扩展到硬x射线范围，HALF计划用6t超导弯曲磁体（Superbends）取代两个正常导电弯曲磁体。本文提出了两种超弯曲电磁方案，以解决在有限磁场积分内实现峰值磁场的挑战。为解决超弯体与原弯曲磁体之间的积分场不匹配问题，提出了一种积分补偿方法作为方案1的潜在解决方案。此外，分析了两种方案对存储环束动力学的影响，并对晶格进行了优化，以保持原有的性能。为了进一步评估方案1的工程可行性，进行了机械和低温系统设计。为保证ReBCO线圈的安全运行，提出了一种初步的淬火保护策略。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment 物理-光谱学

CiteScore

3.20

自引率

21.40%

发文量

787

审稿时长

1 months

期刊介绍： Section A of Nuclear Instruments and Methods in Physics Research publishes papers on design, manufacturing and performance of scientific instruments with an emphasis on large scale facilities. This includes the development of particle accelerators, ion sources, beam transport systems and target arrangements as well as the use of secondary phenomena such as synchrotron radiation and free electron lasers. It also includes all types of instrumentation for the detection and spectrometry of radiations from high energy processes and nuclear decays, as well as instrumentation for experiments at nuclear reactors. Specialized electronics for nuclear and other types of spectrometry as well as computerization of measurements and control systems in this area also find their place in the A section. Theoretical as well as experimental papers are accepted.