用于基于雷达的cosmic ray检测的自定义时域固件触发器的实现
Implementation of a custom time-domain firmware trigger for RADAR-based cosmic ray detection
摘要：
近年来，对基于无线电的超高能宇宙射线（UHECR）探测方案的兴趣激增，这是由于潜在的非常低的成本/探测比。射频（RF）散射方法已被提出作为潜在的最经济的检测技术。虽然第一个采用这种方法的专门实验，望远镜阵列雷达实验（TARA），没有报告任何信号，但开发更强大和灵敏的触发技术的努力仍在继续。本文详细介绍了开发的时域固件触发器，利用UHECR扩展空气簇射（EAS）的预期散射信号的特性。报告讨论了提高这一触发机制的敏感性，以及2016-2017年在两个不同外地部署的实施情况。
英文摘要：
Interest in Radio-based detection schemes for ultra-high energy cosmic rays (UHECR) has surged in recent years, owing to the potentially very low cost/detection ratio. The method of radio-frequency (RF) scatter has been proposed as potentially the most economical detection technology. Though the first dedicated experiment to employ this method, the Telescope Array RADAR experiment (TARA), reported no signal, efforts to develop more robust and sensitive trigger techniques continue. This paper details the development of a time-domain firmware trigger that exploits characteristics of the expected scattered signal from an UHECR extensive-air shower (EAS). The improved sensitivity of this trigger is discussed, as well as implementation in two separate field deployments from 2016-2017.
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