论文标题
CMS 1阶段1像素检测器在LS2期间进行翻新，并准备对LHC Run-3进行准备
CMS Phase-1 Pixel detector refurbishment during LS2 and readiness towards the LHC Run-3
论文作者
论文摘要
在2019年LHC Run-2结束后，从地下洞穴中提取了CMS 1阶段1像素检测器，并在2019 - 2021年的长时间关闭期（LS2）中保持冷水以保护硅传感器。 LHC现在正在为从2022年开始获取的下一部分数据做准备。计划于今年安装1阶段像素探测器，并正在进行一系列的翻新和维修，以提高收集到的数据的质量并增强运营体验。最内向的枪管层已被新的模块替换，并具有改进的读取芯片（PROC600V4），前端ASIC（TBM10D）和电路板，以纠正先前数据获取过程中发现的问题。正向像素探测器已配备了新的冷却入口，可用于安全处理，并具有经过修订的高压配电方案，以更好地匹配低压粒度。所有DC-DC转换器已被新的生产代替，该产品由改进的ASIC（feast2.3）组成，以防止它们在操作过程中破裂。总体而言，这次演讲将总结LS2期间像素探测器的翻新工作，并在安装和调试后突出了对LHC Run-3的准备。
The CMS Phase-1 pixel detector was extracted from the underground cavern after the end of the LHC Run-2 in 2019 and has been kept cold to protect the silicon sensors during the long shutdown period (LS2) in 2019-2021. The LHC is now preparing for the next installment of the data taking beginning 2022. The Phase-1 pixel detector is scheduled to be installed this year and is going through a series of refurbishment and repairs to improve the quality of the collected data and enhance the operational experience. The innermost barrel layer has been replaced with new modules and features improved readout chips (PROC600v4), front-end ASICs (TBM10d), and circuit boards to rectify the issues discovered during the previous data taking. The forward pixel detector has been equipped with new cooling inlets for safe handling and features a revised high-voltage power distribution scheme to better match the low-voltage granularity. All the DC-DC converters have been replaced with a new production, consisting of an improved ASIC (FEAST2.3) to prevent them from breaking during operation. Overall, this talk will summarize the refurbishment work of the pixel detector during LS2, and highlight the readiness towards the LHC Run-3 after installation and commissioning.
