在 CERN SPS 180 GeV/c 强子束下以掠射角对耗尽型单片有源像素传感器 MALTA2 的研究
高能物理 - 实验
2025-02-20 v1 仪器与探测器
摘要
MALTA2 是一种耗尽型单片有源像素传感器,旨在满足未来对撞机实验的严苛要求,特别是极端的辐射耐受性和高击中率。该传感器采用改进的 Tower 180 nm CMOS 图像技术制造,以减轻由 100 MRad 总电离剂量和大于 1 MeV n/cm 非电离能量损失引起的性能退化。MALTA2 样品在 2023-2024 年的 CERN SPS 测试束活动中进行了测试,测试分别在辐照前和注量为 1 MeV n/cm 的辐照后进行。传感器相对于束流以不同倾角放置,覆盖了从 0 到 60 度的掠射角。本工作展示了探测效率和簇大小随这些角度变化的测量结果,并基于测试束结果估算了耗尽区的有效深度。
引用
@article{arxiv.2502.13590,
title = {Study of MALTA2, a Depleted Monolithic Active Pixel Sensor, with grazing angles at CERN SPS 180 GeV/c hadron beam},
author = {L. Li and P. Allport and I. Asensi Tortajada and P. Behera and D. V. Berlea and D. Bortoletto and C. Buttar and V. Dao and G. Dash and L. Fasselt and L. Flores Sanz de Acedo and M. Gazi and L. Gonella and V. Gonzalez and G. Gustavino and S. Haberl and T. Inada and P. Jana and H. Pernegger and P. Riedler and W. Snoeys and C. A Solans Sanchez and M. van Rijnbach and M. Vazquez Nunez and A. Vijay and J. Weick and S. Worm},
journal= {arXiv preprint arXiv:2502.13590},
year = {2025}
}
备注
5 pages, 3 figures, 11th PIXEL International Workshop on Semiconductor Pixel Detectors for Particles and Imaging