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arXiv 0708.1709astro-ph
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皮埃尔俄歇天文台高能宇宙射线的射电探测

Radio detection of high-energy cosmic rays at the Pierre Auger Observatory

A. M. van den Berg

摘要:

南部的俄歇天文台提供了一个很好的测试平台,研究广泛的空气簇射的无线电探测,作为宇宙射线物理学的替代,成本效益高,准确的工具。来自无线电装置的数据可以与皮埃尔·俄歇天文台校准良好的基线探测器的数据相关联。此外,在南部的俄歇站点的人为无线电噪声水平相对较低。我们已经开始了一项研发计划,以测试各种无线电探测概念。我们的研究将揭示自然效应如昼夜变化、雷暴和人为干扰引起的射频干扰。进行这些RFI研究是为了优化探测参数,如天线设计、频率间隔、天线间距和信号处理。我们的初始设置(目前通常由3 - 4个天线组成)的数据将用于消除无线电信号的淋浴,并优化初始概念。此外,大型探测阵列的操作需要自主探测器站。目前的设计是针对两个极化,太阳能,无线通信和本地触发逻辑的天线站。这一初期阶段的成果将为几十平方公里的工程阵列设计提供重要的垫脚石

英文摘要:

The southern Auger Observatory provides an excellent test bed to study the radio detection of extensive air showers as an alternative, cost-effective, and accurate tool for cosmic-ray physics. The data from the radio setup can be correlated with those from the well-calibrated baseline detectors of the Pierre Auger Observatory. Furthermore, human-induced radio noise levels at the southern Auger site are relatively low. We have started an R&D program to test various radio-detection concepts. Our studies will reveal Radio Frequency Interferences (RFI) caused by natural effects such as day-night variations, thunderstorms, and by human-made disturbances. These RFI studies are conducted to optimise detection parameters such as antenna design, frequency interval, antenna spacing and signal processing. The data from our initial setups, which presently consist of typically 3 - 4 antennas, will be used to characterise the shower from radio signals and to optimise the initial concepts. Furthermore, the operation of a large detection array requires autonomous detector stations. The current design is aiming at stations with antennas for two polarisations, solar power, wireless communication, and local trigger logic. The results of this initial phase will provide an important stepping stone for the design of a few tens kilometers square engineering array

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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