Analysis of Data from Surface Detector Stations of the AugerPrime Upgrade
Analysis of Data from Surface Detector Stations of the AugerPrime Upgrade
复制标题
AugerPrime 升级表面探测器站的数据分析
DOI：
10.22323/1.358.0434
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
A. Taboada
中科院分区：
文献类型：
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作者：
A. Taboada
测量大量空气簇射的不同成分对于重建超高能宇宙射线的质量组成至关重要。 AugerPrime 是皮埃尔俄歇天文台的升级版，旨在通过在 1660 个水切伦科夫探测器 (WCD) 的每个顶部安装一个 3.8~\mathrm{m^2}$ 塑料闪烁体探测器来增强其表面探测器对大量宇宙射线的灵敏度。该闪烁体表面探测器 (SSD) 提供补充测量，可解开电磁和μ子簇射组件。 AugerPrime 的另一个重要改进是表面探测器电子设备。新的电子器件将以更高的采样频率和增强的信号幅度分辨率来处理来自 WCD 和 SSD 的信号。此外，每个WCD将添加一个更小的光电倍增管，从而增加其动态范围。自 2016 年 9 月以来，12 个升级后的表面探测器站一直在运行。此外，自 2019 年 3 月以来，还部署了 77 个 SSD 并正在获取数据。在这项工作中，介绍了对这些探测器数据的分析。
Measuring the different components of extensive air showers is of key importance in reconstructing the mass composition of ultra-high energy cosmic rays. AugerPrime, the upgrade of the Pierre Auger Observatory, aims to enhance the sensitivity of its surface detector to the masses of cosmic rays by installing a $3.8~\mathrm{m^2}$ plastic scintillator detector on top of each of the 1660 Water-Cherenkov Detectors (WCDs). This Scintillator Surface Detector (SSD) provides a complementary measurement which allows for disentanglement of the electromagnetic and muonic shower components. Another important improvement of AugerPrime are the surface-detector electronics. The new electronics will process signals from the WCD and the SSD with higher sampling frequency and enhanced resolution in signal amplitude. Furthermore, a smaller photomultiplier tube will be added to each WCD, thus increasing its dynamic range. Twelve upgraded surface detector stations have been operating since September 2016. Additionally, seventy-seven SSDs have been deployed and are taking data since March 2019. In this work, the analysis of the data from these detectors is presented.