arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2109.02591physics.ins-dethep-ex
收藏

LHC运行2中ATLAS半导体跟踪器的操作和性能

Operation and performance of the ATLAS semiconductor tracker in LHC Run 2

ATLAS Collaboration

摘要:

半导体跟踪器(SCT)是ATLAS探测器中的带电粒子跟踪系统之一。它由4088个硅条传感器模块组成。在运行2(2015 $-$ 2018)期间,大型强子对撞机以13 TeV的质心$pp$碰撞能量向ATLAS实验提供了156 fb $^{-1}$的积分亮度。瞬时亮度和堆积条件远远超过SCT探测器最初设计时的假设。由于数据采集系统的改进,SCT在整个运行2中稳定运行。它可用于99.9%的积分亮度,并实现了99.85%的数据质量效率。详细研究了SCT组件的漏电流和全耗尽电压的演变,并以此研究辐射损伤对组件的影响。

英文摘要:

The semiconductor tracker (SCT) is one of the tracking systems for charged particles in the ATLAS detector. It consists of 4088 silicon strip sensor modules. During Run 2 (2015$-$2018) the Large Hadron Collider delivered an integrated luminosity of 156 fb$^{-1}$ to the ATLAS experiment at a centre-of-mass $pp$ collision energy of 13 TeV. The instantaneous luminosity and pile-up conditions were far in excess of those assumed in the original design of the SCT detector. Due to improvements to the data acquisition system, the SCT operated stably throughout Run 2. It was available for 99.9% of the integrated luminosity and achieved a data-quality efficiency of 99.85%. Detailed studies have been made of the leakage current in SCT modules and the evolution of the full depletion voltage, which are used to study the impact of radiation damage to the modules.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑