LHC accelerator R&D and upgrade scenarios
LHC accelerator R&D and upgrade scenarios
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LHC加速器R
DOI：
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发表时间：
2004
期刊：
影响因子：
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通讯作者：
F. Ruggiero
中科院分区：
文献类型：
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作者：
F. Ruggiero
我报告了欧洲核子研究中心一个特别工作组的结果，该工作组成立的目的是调查大型强子对撞机及其喷射器可能分阶段升级的可能性，以期将机器的光度从标称的1034厘米-2 S-1提高到1035厘米-2 S-1。此外，还考虑了将大型强子对撞机的能量升级近一个因素2的方案。这些讨论的一个有趣的结果是找到了一种新的方法来优化对撞机的性能，与高强度质子束或长“超束”的束流限制相兼容。我还绘制了一个新的相互作用区的设计，包括一个可选的光束交叉方案。为了更好地了解情况，我首先介绍了与机器保护和电子云效应相关的大型强子对撞机调试场景和挑战。最后，我讨论了大型强子对撞机性能升级所需的进一步研究，并概述了研发计划。
I report the results of a CERN task force set up to investigate a possible staged upgrade of the LHC and of its injectors, with a view to increasing the machine luminosity by an order of magnitude from the nominal 1034 cm–2 s–1 to 1035 cm–2 s–1. Scenarios for an LHC energy upgrade by nearly a factor two have also been considered. An interesting outcome of these discussions has been a novel approach to the optimization of the collider performance, compatible with the beam-beam limit for high intensity proton bunches or long ‘super-bunches’. I also sketch a new design of the interaction regions, including an alternative beam crossing scheme. To put things in perspective, I first address LHC commissioning scenarios and challenges associated with machine protection and electron cloud effects. Finally I discuss further studies required for an LHC performance upgrade and outline an R&D programme.