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首页> 外文期刊>Nuclear Instruments & Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment >Radio detection of high-energy cosmic rays with the Auger Engineering Radio Array
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Radio detection of high-energy cosmic rays with the Auger Engineering Radio Array

机译：用俄歇工程无线电阵列对高能宇宙射线进行无线电探测

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摘要

The Auger Engineering Radio Array (AERA) is an enhancement of the Pierre Auger Observatory in Argentina. Covering about 17 km~2, AERA is the world-largest antenna array for cosmic-ray observation. It consists of more than 150 antenna stations detecting the radio signal emitted by air showers, i.e., cascades of secondary particles caused by primary cosmic rays hitting the atmosphere. At the beginning, technical goals had been in focus: first of all, the successful demonstration that a large-scale antenna array consisting of autonomous stations is feasible. Moreover, techniques for calibration of the antennas and time calibration of the array have been developed, as well as special software for the data analysis. Meanwhile physics goals come into focus. At the Pierre Auger Observatory air showers are simultaneously detected by several detector systems, in particular water-Cherenkov detectors at the surface, underground muon detectors, and fluorescence telescopes, which enables cross-calibration of different detection techniques. For the direction and energy of air showers, the precision achieved by AERA is already competitive; for the type of primary particle, several methods are tested and optimized. By combining AERA with the particle detectors we aim for a better understanding of cosmic rays in the energy range from approximately 0.3 to 10EeV, i.e., significantly higher energies than preceding radio arrays.
机译：俄歇工程无线电阵列（AERA）是阿根廷皮埃尔·俄歇天文台的增强版。 AERA覆盖约17 km〜2，是世界上用于宇宙射线观测的最大天线阵列。它由150多个天线站组成，这些天线站检测由风淋发出的无线电信号，即由主要宇宙射线撞击大气而引起的次级粒子级联。最初，技术目标一直是重点：首先，成功证明由自治站组成的大规模天线阵列是可行的。此外，已经开发了用于天线校准和阵列时间校准的技术，以及用于数据分析的专用软件。同时，物理目标成为焦点。在皮埃尔·奥格天文台，数种探测器系统同时探测到了风淋，特别是地表水切伦科夫探测器，地下μ子探测器和荧光望远镜，它们可以交叉校准不同的探测技术。对于淋浴的方向和能量，AERA所达到的精度已经具有竞争力。对于一次粒子的类型，测试和优化了几种方法。通过将AERA与粒子探测器结合使用，我们的目标是更好地理解能量范围大约为0.3EeV至10EeV的宇宙射线，即比以前的无线电阵列的能量高得多。

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