Experimental study of different silicon sensor options for the upgrade of the CMS Outer Tracker
Experimental study of different silicon sensor options for the upgrade of the CMS Outer Tracker
复制标题
用于 CMS 外部跟踪器升级的不同硅传感器选项的实验研究
DOI：
10.1088/1748-0221/15/04/p04017
复制
发表时间：
2020
影响因子：
1.3
通讯作者：
Adam W
中科院分区：
文献类型：
--
作者：
Adam W
答：在计划于2027年开始的大型强子对撞机（HL-LHC）的高光度阶段，加速器预计将提供高达7.5× 1034 cm− 2 s− 1的瞬时峰值光度。预计在未来十年内，3000甚至4000 fb − 1的总积分光度将被提供给通用探测器ATLAS和CMS，从而显着增加LHC实验的发现潜力。CMS探测器将为HL-LHC进行重大升级，全新的跟踪探测器由外部跟踪器和内部跟踪器组成。然而，新的跟踪系统将暴露在比当前跟踪器高得多的辐射下，需要新的抗辐射传感器。CMS从2009年开始发起了一项广泛的辐照和测量活动，系统地比较不同硅材料的特性和外跟踪器传感器的设计选择。在18种不同的晶圆材料、厚度和生产技术组合上设计并实现了几种测试结构和传感器。在用中子和不同能量的质子辐照之前和之后，对这些装置进行了电气表征，其中通量对应于在3000 fb − 1之后CMS外跟踪器的不同半径处的预期通量。所进行的测试包括使用β源、激光和光束扫描的研究。本文比较了HL-LHC硅传感器的不同选择的性能，重点是硅块材料和厚度。
A: During the high-luminosity phase of the LHC (HL-LHC), planned to start in 2027, the accelerator is expected to deliver an instantaneous peak luminosity of up to 7.5× 1034 cm− 2 s− 1. A total integrated luminosity of 3000 or even 4000fb− 1 is foreseen to be delivered to the general purpose detectors ATLAS and CMS over a decade, thereby increasing the discovery potential of the LHC experiments significantly. The CMS detector will undergo a major upgrade for the HL-LHC, with entirely new tracking detectors consisting of an Outer Tracker and Inner Tracker. However, the new tracking system will be exposed to a significantly higher radiation than the current tracker, requiring new radiation-hard sensors. CMS initiated an extensive irradiation and measurement campaign starting in 2009 to systematically compare the properties of different silicon materials and design choices for the Outer Tracker sensors. Several test structures and sensors were designed and implemented on 18 different combinations of wafer materials, thicknesses, and production technologies. The devices were electrically characterized before and after irradiation with neutrons, and with protons of different energies, with fluences corresponding to those expected at different radii of the CMS Outer Tracker after 3000fb− 1. The tests performed include studies with β sources, lasers, and beam scans. This paper compares the performance of different options for the HL-LHC silicon sensors with a focus on silicon bulk material and thickness.
影响因子：
1.3
作者：
Adam, W.;Bergauer, T.;Johns, W.
通讯作者：
Johns, W.