Fine Tuning of the Inner Dipole Design of MCBXF Magnets
Fine Tuning of the Inner Dipole Design of MCBXF Magnets
复制标题
MCBXF 磁体内部偶极子设计的微调
DOI：
10.1109/tasc.2022.3148688
复制
发表时间：
2022
影响因子：
1.8
通讯作者：
E. Todesco
中科院分区：
文献类型：
--
作者：
J. A. García;C. Alcázar;M. Domínguez;Óscar Durán Lucas;L. García;Luis Antonio González Gómez;P. Gómez;J. Jiménez;T. Martínez;C. M. Jardim;J. A. Pardo;J. Pérez;P. Sobrino;F. Toral;J. Perez;E. Todesco
大型强子对撞机升级需要两种嵌套轨道校正器，即所谓的MCBXFA和MCBXFB。它们的横截面相同，但长度不同，分别为2.5米和1.5米。在两台MCBXFB样机上进行的功率测试显示，单独供电时的性能很好，但在联合操作中达到额定扭矩的培训非常长。此外，扭矩方向反转后，记忆也会丢失。对功率测试结果的详细分析得出的结论是，问题的根源是内部偶极线圈末端的扭矩支承不足。为了提高两种磁体的性能，提出了对内部偶极子设计进行微调的建议。本文介绍了为分析这一问题而开发的分析和数值模型及其结果。
Two types of nested orbit correctors are necessary for LHC upgrade, the so-called MCBXFA and MCBXFB. They share the same cross section, but feature different lengths, 2.5 and 1.5 m, respectively. The power tests performed on two MCBXFB prototypes showed excellent performance when individually powered, but training to reach the nominal torque in combined operation was very long. Moreover, memory was lost after torque direction reversal. A detailed analysis of the power test results concluded that the origin of the problem was insufficient support for the torque at the inner dipole coil ends. A fine tuning of the inner dipole design is proposed to improve the performance of both types of magnets. This paper describes the analytical and numerical models developed to analyze the problem and their results.