论文标题
用于地面伽马射线实验的水切伦科夫检测器设计的研究
Study of water Cherenkov detector design for ground-based gamma-ray experiments
论文作者
论文摘要
在SWGO实验的开发框架内，我们根据一系列水cherenkov探测器对广泛的空气淋浴天文台的单个单位进行了详细研究。实际上，SWGO的可能的水Cherenkov检测器单位构型之一由储罐组成，并在伽马射线和HADRONIC空气淋浴之间达到高检测效率和歧视能力，正在研究不同的水箱设计。在这项研究中，我们考虑了具有多种尺寸，形状和光型型管（PMTS）数量的双层储罐。在广泛的空气淋浴中，已模拟了具有典型的二级颗粒的能量的兆，电子和伽马射线，已模拟，进入储罐，具有从0到60度的天顶角。考虑到PMT产生的光电子数量，检测效率以及第一个光子测量的时间分辨率，评估了储罐响应。该分析允许比较具有不同尺寸，PMT构型以及圆形，六角形和方形几何形状的储罐的性能。所使用的方法和结果将在本文中讨论。
In the framework of the development of the SWGO experiment we have performed a detailed study of the single unit of an extensive air shower observatory based on an array of water Cherenkov detectors. Indeed, one of the possible water Cherenkov detector unit configurations for SWGO consists of tanks, and to reach a high detection efficiency and discrimination capability between gamma-ray and hadronic air showers, different tank designs are under investigation. In this study, we considered double-layer tanks with several sizes, shapes and number of photo-multiplier tubes (PMTs). Muons, electrons, and gamma-rays with energies typical of secondary particles in extensive air showers have been simulated entering the tanks with zenith angles from 0 to 60 degrees. The tank response was evaluated considering the number of photoelectrons produced by the PMTs, the detection efficiency, and the time resolution of the measurement of the first photon. This analysis allowed to compare the performance of tanks with different size, configuration of PMTs, and with circular, hexagonal and square geometry. The method used and the results will be discussed in this paper.
