大型强子对撞机（LHC）低b磁体系统的仪器状况
Instrumentation status of the low-b magnet systems at the Large Hadron Collider (LHC)
摘要：
低β磁体系统位于大型强子对撞机（LHC）插入区域的四个相互作用点周围。它们是光束聚焦/散焦过程中的关键元件，允许质子碰撞的亮度高达10**34/cm**2s。这些系统是US-LHC加速器项目的贡献。该系统主要由四极磁铁（三重态）、分离偶极子和它们各自的电馈电盒（DFBX）组成。低β磁体系统在极端辐射、高梯度磁场和由于束动态效应而对低温系统的高热负荷的环境中操作。由于恶劣的环境，诊断的鲁棒性对于三联体的操作是至关重要的。LHC的硬件调试阶段于2010年2月完成。为了更安全和更方便用户的操作，在调试阶段进行了几次合并和仪器改造。本文介绍了仪器用于优化工程过程和操作的最后聚焦/散焦四极磁铁的第一年的操作。
英文摘要：
The low-beta magnet systems are located in the Large Hadron Collider (LHC) insertion regions around the four interaction points. They are the key elements in the beams focusing/defocusing process allowing proton collisions at luminosity up to 10**34/cm**2s. Those systems are a contribution of the US-LHC Accelerator project. The systems are mainly composed of the quadrupole magnets (triplets), the separation dipoles and their respective electrical feed-boxes (DFBX). The low-beta magnet systems operate in an environment of extreme radiation, high gradient magnetic field and high heat load to the cryogenic system due to the beam dynamic effect. Due to the severe environment, the robustness of the diagnostics is primordial for the operation of the triplets. The hardware commissioning phase of the LHC was completed in February 2010. In the sake of a safer and more user-friendly operation, several consolidations and instrumentation modifications were implemented during this commissioning phase. This paper presents the instrumentation used to optimize the engineering process and operation of the final focusing/defocusing quadrupole magnets for the first years of operation.
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