Manufacturing Error Analysis of Field Quality for the HL-LHC CCT Corrector
Manufacturing Error Analysis of Field Quality for the HL-LHC CCT Corrector
复制标题
HL-LHC CCT 校正器的现场质量制造误差分析
DOI：
10.1109/tasc.2020.2972229
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发表时间：
2020
影响因子：
1.8
通讯作者：
Qingjin Xu
中科院分区：
文献类型：
--
作者：
Shaoqing Wei;Meng Li;Zhandong Zhang;Quan;L. Gong;Chao Li;Yu Liang;Yuquan Chen;Qingjin Xu
高光度大型强子对撞机（HL-LHC）项目作为大型强子对撞机（LHC）的升级版，将于未来十年启动。中国将研制一套斜余弦θ（CCT）双孔径轨道校正磁体，两个孔径的场质量要求为10−3。与欧洲核子研究中心合作，在批量生产之前将双孔径校正器作为原型制造。 CCT线圈在制造过程中会出现一定的制造误差，包括绕线误差、旋转误差和同心度误差，这些误差会影响磁场质量。本研究分析了这些制造误差对场谐波分量的影响，并简要介绍了样机的制造过程和首次测试结果。分析结果为2.2米轨道修正器的进一步批量生产提供了建议。
The High Luminosity LHC (HL-LHC) project, as an upgrade of the Large Hadron Collider (LHC), is to be started in the next decade. A set of canted cosine theta (CCT) twin aperture orbit corrector magnets will be developed in China, with a field quality requirement of 10−3 in the two apertures. Cooperating with CERN, twin aperture correctors are being fabricated as prototypes before the series production. During the fabrication of the CCT coils, certain manufacturing errors including winding error, rotating error and concentricity error appeared which will affect the field quality. This study analyzed the effects on field harmonic components by these manufacturing errors, and the manufacturing process and the first test result of the prototype were introduced briefly. Suggestions from the analysis results are provided for further series production of the 2.2-m orbit correctors.