BEPCII发光性能实验与仿真研究进展

IF 1.5 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 : 2025-05-01 Epub Date: 2025-02-12 DOI:10.1016/j.nima.2025.170289

Di Yin , Yanru Wei , Huiping Geng , Yudong Liu , Yuan Zhang , Jinliu Su , Zhi Liu , Hongfei Ji , Jun Xing , Weibin Liu , Junhui Yue , Chenghui Yu

{"title":"BEPCII发光性能实验与仿真研究进展","authors":"Di Yin , Yanru Wei , Huiping Geng , Yudong Liu , Yuan Zhang , Jinliu Su , Zhi Liu , Hongfei Ji , Jun Xing , Weibin Liu , Junhui Yue , Chenghui Yu","doi":"10.1016/j.nima.2025.170289","DOIUrl":null,"url":null,"abstract":"<div><div>Recently, the routine operational peak luminosity of BEPCII at 1.89 GeV has reached <span><math><mrow><mn>1</mn><mo>.</mo><mn>0</mn><mo>×</mo><mn>1</mn><msup><mrow><mn>0</mn></mrow><mrow><mn>33</mn></mrow></msup><mspace></mspace><msup><mrow><mtext>cm</mtext></mrow><mrow><mo>−</mo><mn>2</mn></mrow></msup><msup><mrow><mtext>s</mtext></mrow><mrow><mo>−</mo><mn>1</mn></mrow></msup></mrow></math></span>. The tuning of the transverse multi-bunch feedback system has effectively mitigated the oscillations of the coherent beam-beam <span><math><mi>π</mi></math></span> mode in the horizontal direction, increasing the peak luminosity by approximately 20%. This paper introduces the commissioning process and discusses the observed beam phenomena. Additionally, the underlying mechanisms have been examined through simulations and are now well understood. A preliminary experiment on top-up injection has also been conducted with optimized configurations of the feedback system, demonstrating the potential of top-up injection near 1.89 GeV at BEPCII.</div></div>","PeriodicalId":19359,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment","volume":"1074 ","pages":"Article 170289"},"PeriodicalIF":1.5000,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Recent advances of experiment and simulation on luminosity performance at BEPCII\",\"authors\":\"Di Yin , Yanru Wei , Huiping Geng , Yudong Liu , Yuan Zhang , Jinliu Su , Zhi Liu , Hongfei Ji , Jun Xing , Weibin Liu , Junhui Yue , Chenghui Yu\",\"doi\":\"10.1016/j.nima.2025.170289\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Recently, the routine operational peak luminosity of BEPCII at 1.89 GeV has reached <span><math><mrow><mn>1</mn><mo>.</mo><mn>0</mn><mo>×</mo><mn>1</mn><msup><mrow><mn>0</mn></mrow><mrow><mn>33</mn></mrow></msup><mspace></mspace><msup><mrow><mtext>cm</mtext></mrow><mrow><mo>−</mo><mn>2</mn></mrow></msup><msup><mrow><mtext>s</mtext></mrow><mrow><mo>−</mo><mn>1</mn></mrow></msup></mrow></math></span>. The tuning of the transverse multi-bunch feedback system has effectively mitigated the oscillations of the coherent beam-beam <span><math><mi>π</mi></math></span> mode in the horizontal direction, increasing the peak luminosity by approximately 20%. This paper introduces the commissioning process and discusses the observed beam phenomena. Additionally, the underlying mechanisms have been examined through simulations and are now well understood. A preliminary experiment on top-up injection has also been conducted with optimized configurations of the feedback system, demonstrating the potential of top-up injection near 1.89 GeV at BEPCII.</div></div>\",\"PeriodicalId\":19359,\"journal\":{\"name\":\"Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment\",\"volume\":\"1074 \",\"pages\":\"Article 170289\"},\"PeriodicalIF\":1.5000,\"publicationDate\":\"2025-05-01\",\"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/S0168900225000907\",\"RegionNum\":3,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2025/2/12 0:00:00\",\"PubModel\":\"Epub\",\"JCR\":\"Q3\",\"JCRName\":\"INSTRUMENTS & INSTRUMENTATION\",\"Score\":null,\"Total\":0}","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/S0168900225000907","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/2/12 0:00:00","PubModel":"Epub","JCR":"Q3","JCRName":"INSTRUMENTS & INSTRUMENTATION","Score":null,"Total":0}

引用次数: 0

摘要

最近，BEPCII在1.89 GeV下的常规工作峰值亮度达到1.0×1033cm−2s−1。横向多束反馈系统的调谐有效地减轻了相干光束π模在水平方向上的振荡，使峰值光度提高了约20%。本文介绍了调试过程，并对观测到的光束现象进行了讨论。此外，通过模拟研究了潜在的机制，现在已经很好地理解了。利用优化后的反馈系统配置进行了充值注入的初步实验，证明了在BEPCII下充值注入接近1.89 GeV的潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

Recent advances of experiment and simulation on luminosity performance at BEPCII

Recently, the routine operational peak luminosity of BEPCII at 1.89 GeV has reached

1.0 \times 1 0^{33} {cm}^{- 2} s^{- 1}

. The tuning of the transverse multi-bunch feedback system has effectively mitigated the oscillations of the coherent beam-beam

π

mode in the horizontal direction, increasing the peak luminosity by approximately 20%. This paper introduces the commissioning process and discusses the observed beam phenomena. Additionally, the underlying mechanisms have been examined through simulations and are now well understood. A preliminary experiment on top-up injection has also been conducted with optimized configurations of the feedback system, demonstrating the potential of top-up injection near 1.89 GeV at BEPCII.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

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.