论文标题
AC-LGAD带有120 GEV质子束的AC-LGAD带状传感器的测量
Measurements of an AC-LGAD strip sensor with a 120 GeV proton beam
论文作者
论文摘要
在四个维度上提供高分辨率的探测器的发展引起了科学界的广泛兴趣，用于在高能物理学，核物理学，医学成像，质谱以及量子信息方面的多种应用。除了高时间分辨率并得益于电极的交流耦合外，LGAD硅传感器还可以在测量当入射最小电离粒子的空间坐标的测量中提供高分辨率。因此，这种AC耦合的LGAD（也称为AC-LGADS）被认为是未来检测器的候选者，可以在单个感应设备中提供4维测量值，其中100 $ \％$ $ $填充因子。本文介绍了AC-LGAD传感器的首次表征，其质子束在Fermilab处为120 GEV动量。该传感器由在布鲁克黑文国家实验室制造的80美元$ $ m宽度的带。提出了信号性能，效率，空间和时间分辨率。实验结果表明，这种AC-LGAD的时间分辨率与具有相似增益的标准LGAD兼容，并且可以将AC-LGAD用作为标准条或像素检测器的细节进行分割。
The development of detectors that provide high resolution in four dimensions has attracted wide-spread interest in the scientific community for several applications in high-energy physics, nuclear physics, medical imaging, mass spectroscopy as well as quantum information. In addition to high time resolution and thanks to the AC-coupling of the electrodes, LGAD silicon sensors can provide high resolution in the measurement of spatial coordinates of an incident minimum ionizing particle. Such AC-coupled LGADs, also known as AC-LGADs, are therefore considered as candidates for future detectors to provide 4-dimensional measurements in a single sensing device with 100$\%$ fill factor. This article presents the first characterization of an AC-LGAD sensor with a proton beam of 120 GeV momentum at Fermilab. The sensor consists of strips with 80 $μ$m width, fabricated at Brookhaven National Laboratory. The signal properties, efficiency, spatial, and time resolution are presented. The experimental results show that the time resolution of such an AC-LGAD is compatible to standard LGADs with similar gain, and that AC-LGADs can be segmented with fine pitches as standard strip or pixel detectors.
