Design and initial performance of the prototype for the BEACON instrument for detection of ultrahigh energy particles
Design and initial performance of the prototype for the BEACON instrument for detection of ultrahigh energy particles
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DOI：
10.1016/j.nima.2022.167889
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发表时间：
2022-06
期刊：
影响因子：
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通讯作者：
D. Southall;C. Deaconu;V. Decoene;E. Oberla;A. Zeolla;J. Alvarez-Muñiz;A. Cummings;Z. Curtis-Ginsberg
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文献类型：
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作者：
D. Southall;C. Deaconu;V. Decoene;E. Oberla;A. Zeolla;J. Alvarez-Muñiz;A. Cummings;Z. Curtis-Ginsberg
宇宙中微子波束形成高架阵列（BEACON）是一个计划中的中微子望远镜，旨在探测地球上超高能量的tau中微子相互作用产生的上升空气阵雨产生的射电辐射。这种探测机制提供了一种宇宙中微子τ通量的测量方法。我们在巴克罗夫特野外站高海拔安装了一台8通道原型仪器，该仪器自2018年开始运行，由4个双极化天线组成，灵敏度在30-80 MHz之间，其信号通过定制数据采集系统（DAQ）进行滤波、放大、数字化并保存到磁盘。BEACON原型机位于高海拔，以最大限度地提高有效体积，并使用定向波束形成触发器，以提高触发器级别对人为背景噪声的抑制。本文讨论了BEACON样机的设计、构造和标定。我们还讨论了仪器观测到的射频环境，并对仪器观测到的事件类型进行了分类，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.