论文标题
用于检测超高能量颗粒的Beacon仪器原型的设计和初始性能
Design and Initial Performance of the Prototype for the BEACON Instrument for Detection of Ultrahigh Energy Particles
论文作者
论文摘要
宇宙中微子（Beacon）的波束形成高架阵列是一种计划中的中微子望远镜，旨在检测地球上超高能量tau中微子相互作用产生的正在进行的空气淋浴的无线电发射。这种检测机制提供了宇宙中微子的tau通量的测量。我们已经在Barcroft Field Station的高海拔站安装了一个8通道原型仪器，该仪器自2018年以来一直在运行，并由4个双极化天线敏感在30-80 MHz之间，其信号被过滤，放大，数字化并使用自定义数据采集系统（DAQ）进行过滤，数字化和磁盘。信标原型处于高海拔高度，以最大程度地提高有效体积，并使用定向光束扳机来改善触发水平上人为背景噪声的排斥。在这里，我们讨论了信标原型仪器的设计，构造和校准。我们还讨论了该仪器观察到的射频环境，并对仪器所看到的事件类型进行分类，包括可能的宇宙射线候选事件。
The Beamforming Elevated Array for COsmic Neutrinos (BEACON) is a planned neutrino telescope designed to detect radio emission from upgoing air showers generated by ultrahigh energy tau neutrino interactions in the Earth. This detection mechanism provides a measurement of the tau flux of cosmic neutrinos. We have installed an 8-channel prototype instrument at high elevation at Barcroft Field Station, which has been running since 2018, and consists of 4 dual-polarized antennas sensitive between 30-80 MHz, whose signals are filtered, amplified, digitized, and saved to disk using a custom data acquisition system (DAQ). The BEACON prototype is at high elevation to maximize effective volume and uses a directional beamforming trigger to improve rejection of anthropogenic background noise at the trigger level. Here we discuss the design, construction, and calibration of the BEACON prototype instrument. We also discuss the radio frequency environment observed by the instrument, and categorize the types of events seen by the instrument, including a likely cosmic ray candidate event.
