同步加速器非线性动力学的在线控制

Physical Review Special Topics-accelerators and Beams Pub Date : 2015-07-06 DOI:10.1103/PHYSREVSTAB.18.074002

J. Bengtsson, I. Martin, J. Rowland, R. Bartolini

{"title":"同步加速器非线性动力学的在线控制","authors":"J. Bengtsson, I. Martin, J. Rowland, R. Bartolini","doi":"10.1103/PHYSREVSTAB.18.074002","DOIUrl":null,"url":null,"abstract":"We propose a simple approach to the on-line control of the nonlinear dynamics in storage rings, based on compensation of the nonlinear resonance driving terms using beam losses as the main indicator of the strength of a resonance. The correction scheme is built on the analysis of the resonance driving terms in first perturbative order and on the possibility of using independent power supplies in the sextupole magnets, which is nowadays present in many synchrotron light sources. Such freedom allows the definition of “smart sextupole knobs” attacking each resonance separately. The compensation scheme has been tested at the Diamond light source and proved to be effective in opening up the betatron tune space, resonance free, available to the electron beam and to improve the beam lifetime.","PeriodicalId":20072,"journal":{"name":"Physical Review Special Topics-accelerators and Beams","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2015-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"8","resultStr":"{\"title\":\"On-line control of the nonlinear dynamics for synchrotrons\",\"authors\":\"J. Bengtsson, I. Martin, J. Rowland, R. Bartolini\",\"doi\":\"10.1103/PHYSREVSTAB.18.074002\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"We propose a simple approach to the on-line control of the nonlinear dynamics in storage rings, based on compensation of the nonlinear resonance driving terms using beam losses as the main indicator of the strength of a resonance. The correction scheme is built on the analysis of the resonance driving terms in first perturbative order and on the possibility of using independent power supplies in the sextupole magnets, which is nowadays present in many synchrotron light sources. Such freedom allows the definition of “smart sextupole knobs” attacking each resonance separately. The compensation scheme has been tested at the Diamond light source and proved to be effective in opening up the betatron tune space, resonance free, available to the electron beam and to improve the beam lifetime.\",\"PeriodicalId\":20072,\"journal\":{\"name\":\"Physical Review Special Topics-accelerators and Beams\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2015-07-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"8\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Physical Review Special Topics-accelerators and Beams\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1103/PHYSREVSTAB.18.074002\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Physical Review Special Topics-accelerators and Beams","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1103/PHYSREVSTAB.18.074002","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 8

摘要

我们提出了一种基于非线性谐振驱动项补偿的存储环非线性动力学在线控制的简单方法，以光束损耗作为谐振强度的主要指标。校正方案是建立在共振驱动项的一阶微扰分析和在六极磁体中使用独立电源的可能性的基础上的，这是目前许多同步加速器光源中存在的。这种自由使得“智能六极旋钮”的定义可以分别攻击每个共振。该补偿方案在金刚石光源上进行了测试，结果表明，该补偿方案能够有效地打开电子束流可使用的无共振的电子加速器调谐空间，提高束流的寿命。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

On-line control of the nonlinear dynamics for synchrotrons

We propose a simple approach to the on-line control of the nonlinear dynamics in storage rings, based on compensation of the nonlinear resonance driving terms using beam losses as the main indicator of the strength of a resonance. The correction scheme is built on the analysis of the resonance driving terms in first perturbative order and on the possibility of using independent power supplies in the sextupole magnets, which is nowadays present in many synchrotron light sources. Such freedom allows the definition of “smart sextupole knobs” attacking each resonance separately. The compensation scheme has been tested at the Diamond light source and proved to be effective in opening up the betatron tune space, resonance free, available to the electron beam and to improve the beam lifetime.

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

Physical Review Special Topics-accelerators and Beams 物理-物理：核物理

自引率

0.00%

发文量

审稿时长

3-8 weeks

期刊介绍： Physical Review Special Topics - Accelerators and Beams (PRST-AB), is a peer reviewed, purely electronic journal, distributed without charge to readers and funded by contributions from national laboratories. It covers the full range of accelerator science and technology: subsystem and component technologies, beam dynamics; accelerator applications; and design, operation, and improvement of accelerators used in science and industry. This includes accelerators for high-energy and nuclear physics, synchrotron radiation production, spallation neutron sources, medical therapy, and intense beam applications.