标题： 阵列水契伦科夫和闪烁探测器的质量组成灵敏度 显示英文标题

标题： Mass Composition Sensitivity of an Array of Water Cherenkov and Scintillation Detectors

摘要： 我们考虑了一个由闪烁体和水切连科夫探测器组成的混合阵列，旨在测量约1 EeV能量范围内的宇宙射线原初质量组成。 我们开发了一个模拟和重建链来研究这种阵列的理论性能。 在本工作中，我们研究了质量组成观测量对阵列几何结构的敏感性。 探测器以固定750米间距的三角形网格排列，闪烁体探测器的配置优化以提高质量组成敏感性。 我们表明，在考虑了工作周期差异后，成分确定的性能可以与Xmax测量相比具有优势。 显示英文摘要

摘要： We consider a hybrid array composed of scintillation and water Cherenkov detectors designed to measure the cosmic ray primary mass composition at energies of about 1 EeV. We have developed a simulation and reconstruction chain to study the theoretical performance of such an array. In this work we investigate the sensitivity of mass composition observables in relation to the geometry of the array. The detectors are arranged in a triangular grid with fixed 750 m spacing and the configuration of the scintillator detectors is optimized for mass composition sensitivity. We show that the performance for composition determination can be compared favorably to that of Xmax measurements after the difference in duty cycles is considered.