用于高粒度定时探测器的 HPK 原型 LGAD 传感器的设计与性能
仪器与探测器
2020-08-26 v1 高能物理 - 实验
摘要
高粒度定时探测器是为 ATLAS 第二阶段升级提出的一种探测器。该探测器基于低增益雪崩探测器（LGAD）技术，将通过两侧的两个端盖覆盖 的赝快度区域，总面积为 6.4 。通过植入一个能够产生具有快速上升沿信号的内部增益层，可以改善定时性能，从而显著提高信噪比。在 HL-LHC 运行初期和末期，最小电离粒子每径迹所需的平均定时分辨率分别为 30 ps 和 50 ps。这可以通过多层 LGAD 实现。在计划停机期间更换之前，探测器最内部区域将累积高达 的 1 MeV 中子等效注量。预计这一新探测器的加入将在缓解 HL-LHC 的高堆叠问题中发挥重要作用。ATLAS 合作组研究了由滨松（HPK）生产的各个版本 LGAD 原型的设计与性能。测量了击穿电压、耗尽电压、焊盘间距、收集电荷以及时间分辨率，并评估了大尺寸传感器的生产良率。
引用
@article{arxiv.2003.14071,
title = {Layout and Performance of HPK Prototype LGAD Sensors for the High-Granularity Timing Detector},
author = {X. Yang and S. Alderweireldt and N. Atanov and M. K. Ayoub and J. Barreiro Guimaraes da Costa and L. Castillo Garcia and H. Chen and S. Christie and V. Cindro and H. Cui and G. D'Amen and Y. Davydov and Y. Y. Fan and Z. Galloway and J. J. Ge and C. Gee and G. Giacomini and E. L. Gkougkousis and C. Grieco and S. Grinstein and J. Grosse-Knetter and S. Guindon and S. Han and A. Howard and Y. P. Huang and Y. Jin and M. Q. Jing and R. Kiuchi and G. Kramberger and E. Kuwertz and C. Labitan and J. Lange and M. Leite and C. H. Li and Q. Y. Li and B. Liu and J. Y. Liu and Y. W. Liu and H. Liang and Z. J. Liang and M. Lockerby and F. Lyu and I. Mandić and F. Martinez-Mckinney and S. M. Mazza and M. Mikuž and R. Padilla and B. H. Qi and A. Quadt and K. L. Ran and H. Ren and C. Rizzi and E. Rossi and H. F. -W. Sadrozinski and G. T. Saito and B. Schumm and M. Schwickardi and A. Seiden and L. Y. Shan and L. S. Shi and X. Shi and A. Soares Canas Ferreira and Y. J. Sun and Y. H. Tan and A. Tricoli and G. Y. Wan and M. Wilder and K. W. Wu and W. Wyatt and S. Y. Xiao and T. Yang and Y. Z. Yang and C. J. Yu and L. Zhao and M. Zhao and Y. Zhao and Z. G. Zhao and X. X. Zheng and X. A. Zhuang},
journal= {arXiv preprint arXiv:2003.14071},
year = {2020}
}
备注
17 pages, 20 figures