Investigations of ice and emitter properties from radio signals recorded with ARIANNA
Investigations of ice and emitter properties from radio signals recorded with ARIANNA
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利用 ARIANNA 记录的无线电信号研究冰和发射器特性
DOI：
10.22323/1.358.0939
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
R. Lahmann
中科院分区：
文献类型：
--
作者：
R. Lahmann
ARIANNA 是一种冰内中微子无线电探测器，能量范围为 $\sim\!\!10^{16}$eV 到 $\sim\!\!10^{20}$eV，目前在南极洲处于试验阶段。它利用了所谓的阿斯卡扬效应，通过该效应从中微子引起的冰中粒子簇射发射无线电信号。几何光学是研究电磁信号通过冰等介质传播的有效工具，使用射线追踪来预测介质内发射器和接收器给定布置的天线中感应的响应。在明确的条件下分析和理解天线对校准信号的响应对于开发中微子属性（尤其是相互作用顶点和能量）的重建算法以及理解和表征冰的属性非常重要。将展示利用 2018--2019 南极季节收集的数据获得的最新结果。
ARIANNA is an in-ice radio detector for neutrinos in the energy range from $\sim\!\!10^{16}$eV to $\sim\!\!10^{20}$eV which is currently in its pilot-phase in Antarctica. It exploits the so-called Askaryan effect by which radio signals are emitted from neutrino-induced particle showers in ice. Geometric optics is an efficient tool to study the propagation of electromagnetic signals through a medium such as ice, using ray tracing to predict the response induced in an antenna for a given arrangement of emitter and receiver within the medium. Analyzing and understanding the antenna response to calibration signals under well-defined conditions is important to develop reconstruction algorithms of neutrino properties, most notably the interaction vertex and energy, and to understand and characterize the properties of the ice. Recent results obtained with the data collected during the 2018--2019 Antarctic season will be presented.