CRAB CAVITIES FOR THE HIGH-LUMINOSITY LHC∗
CRAB CAVITIES FOR THE HIGH-LUMINOSITY LHC∗
复制标题
高亮度大型强子对撞机的蟹腔*
DOI：
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复制
发表时间：
2018
期刊：
影响因子：
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通讯作者：
R. Calaga
中科院分区：
文献类型：
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作者：
R. Calaga
作为实现高亮度LHC（HL-LHC）螃蟹穿越的第一步，两个超导螃蟹腔预计将首次在SPS中进行质子测试。本文介绍了该腔体的制备、射频测试结果、低温制冷机的研制以及与SPS的集成等方面的进展。概述了SPS中蟹状腔梁试验的一些方面。LHC的亮度升级计划于2024-25年进行，以延长LHC的寿命和物理范围到下一个十年。这一升级将使LHC的综合光度潜力增加10倍，达到300 f B−1/yr [1]。两个关键的超导技术需要使这种升级高场大口径四极和高场紧凑螃蟹腔。图1示出了交互区域升级的示意性布局（按比例）。图1：LHC相互作用区域以及为HL-LHC升级的相应磁性和RF元件的示意图。表2列出了LHC设计和升级的一些相关参数。表1：LHC标称和升级晶格的一些相关参数。
As a first step towards the realization of crab crossing for High-Luminosity LHC (HL-LHC), two superconducting crab cavities are foreseen to be tested for the first time in the SPS with protons. The progress on the cavity fabrication, RF test results, cryomodule development and integration into the SPS are presented. Some aspects of the beam tests with crab cavities in the SPS are outlined. INTRODUCTION A luminosity upgrade of the LHC is planned for 2024-25 to extend the lifetime and physics reach of the LHC into the next decade. This upgrade will increase the integrated luminosity potential by ten-fold to 300 f b−1/yr from the present LHC [1]. Two key superconducting technologies are required to enable this upgrade high field large aperture quadrupoles and high field compact crab cavities. Fig 1 shows a schematic layout of the interaction region upgrade (to to scale). Figure 1: Schematic of the LHC interaction region and the respective magnetic and RF elements to be upgraded for HL-LHC. Some relevant parameters for the LHC design and upgrade are listed in Table 2. Table 1: Some relevant parameters for the LHC nominal and upgrade lattices.