标题： 校准和皮埃尔·奥热观测站地表闪烁体探测器的性能 显示英文标题

标题： Calibration and Performance of the Surface Scintillator Detector of the Pierre Auger Observatory

摘要： 皮埃尔·奥格观测站促进了我们对超高能宇宙射线理解的重大进展。 这些新见解推动了观测站的重大升级，称为奥格计划（AugerPrime），通过这一升级，实验进入了其第二阶段，即新的数据收集时期。 升级的关键部分是在现有的水切连科夫探测器（WCD）之上添加地表闪烁探测器（SSD）。 主要目标是利用它们对电磁和缪子簇射成分的不同响应，提高原始宇宙射线质量的重建。 在本次贡献中，我们介绍了涉及分析大气缪子峰值和电荷分布的方法，以在广延空气簇射事件重建期间进行精确校准，同时还开发了一种基于速率的独立校准算法。 我们还展示了SSD在第二阶段数据中的性能，包括光电倍增管的可靠性以及关键参数（如增益和信噪比）的稳定性。 显示英文摘要

摘要： The Pierre Auger Observatory has led to significant advances in our understanding of ultra-high-energy cosmic rays. These new insights have driven a major upgrade of the Observatory, known as AugerPrime, through which the experiment has entered its Phase II, a new period of data collection. A key part of the upgrade is adding surface scintillator detectors (SSD) on top of the existing water-Cherenkov detectors (WCD). The main goal is to leverage their different responses to the electromagnetic and muonic shower components, enhancing the reconstruction of the primary cosmic-ray mass. In this contribution, we present the methods that involve analyzing peak and charge distributions of atmospheric muons for accurate calibration during extensive air-shower event reconstruction, along with the development of a rate-based algorithm for independent calibration. We also show the performance of the SSDs with Phase-II data, including PMT reliability and stability of key parameters, such as gain and signal-to-noise ratio.