Development and Performance of RFD Crab Cavity Prototypes for HL-LHC AUP

Development and Performance of RFD Crab Cavity Prototypes for HL-LHC AUP Pub Date : 2023-07-11 DOI:10.2172/1993176

L. Ristori, P. Berrutti, M. Narduzzi, J. Delayen, S. Silva, Z. Li, A. Ratti, N. Huque, A. C. Fermilab, U. OldDominion, Slac, Jlab

{"title":"Development and Performance of RFD Crab Cavity Prototypes for HL-LHC AUP","authors":"L. Ristori, P. Berrutti, M. Narduzzi, J. Delayen, S. Silva, Z. Li, A. Ratti, N. Huque, A. C. Fermilab, U. OldDominion, Slac, Jlab","doi":"10.2172/1993176","DOIUrl":null,"url":null,"abstract":"The US will be contributing to the HL-LHC upgrade at CERN with the fabrication and qualification of RFD crabbing cavities in the framework of the HL-LHC Accelerator Upgrade Project (AUP) managed by Fermilab. AUP received Critical Decision 3 (CD-3) approval by DOE in December 2020 launching the project into the production phase. The electro-magnetic design of the cavity was inherited from the LHC Accelerator Research Program (LARP) but needed to be revised to meet new project requirements and to prevent issues encountered during beam tests performed at CERN in the R&D phase. Two prototype cavities were manufactured in industry and cold tested. Challenges specific to the RFD cavity were the stringent interface tolerances, the pole symmetry, and the higher-order-mode impedance spectrum. Chemical processing and heat treatments were performed initially at FNAL/ANL and are now being transferred to industry for the production phase. HOM dampers are manufactured and validated by JLAB. A summary of cold test results with and without HOM dampers is presented.","PeriodicalId":248038,"journal":{"name":"Development and Performance of RFD Crab Cavity Prototypes for HL-LHC AUP","volume":"114 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2023-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Development and Performance of RFD Crab Cavity Prototypes for HL-LHC AUP","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.2172/1993176","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 0

Abstract

The US will be contributing to the HL-LHC upgrade at CERN with the fabrication and qualification of RFD crabbing cavities in the framework of the HL-LHC Accelerator Upgrade Project (AUP) managed by Fermilab. AUP received Critical Decision 3 (CD-3) approval by DOE in December 2020 launching the project into the production phase. The electro-magnetic design of the cavity was inherited from the LHC Accelerator Research Program (LARP) but needed to be revised to meet new project requirements and to prevent issues encountered during beam tests performed at CERN in the R&D phase. Two prototype cavities were manufactured in industry and cold tested. Challenges specific to the RFD cavity were the stringent interface tolerances, the pole symmetry, and the higher-order-mode impedance spectrum. Chemical processing and heat treatments were performed initially at FNAL/ANL and are now being transferred to industry for the production phase. HOM dampers are manufactured and validated by JLAB. A summary of cold test results with and without HOM dampers is presented.

查看原文本刊更多论文

HL-LHC AUP RFD蟹腔样机的研制与性能研究

在费米实验室管理的HL-LHC加速器升级项目(AUP)的框架下，美国将为欧洲核子研究中心的HL-LHC升级做出贡献，制造和鉴定RFD抓取腔。AUP于2020年12月获得美国能源部批准的关键决定3 (CD-3)，启动该项目进入生产阶段。腔体的电磁设计继承自大型强子对撞机加速器研究计划(LARP)，但需要进行修改，以满足新的项目要求，并防止在研发阶段在欧洲核子研究中心进行的束流测试中遇到问题。在工业中制造了两个原型腔并进行了冷试验。RFD腔体面临的挑战是严格的界面公差、极点对称性和高阶模阻抗谱。化学加工和热处理最初在FNAL/ANL进行，现在正在转移到工业生产阶段。HOM阻尼器由JLAB制造和验证。摘要介绍了带和不带HOM阻尼器的冷试验结果。

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

Development and Performance of RFD Crab Cavity Prototypes for HL-LHC AUP

自引率

0.00%

发文量