论文标题
原位，格陵兰岛萨米特站的射频衰减长度的宽带测量
In situ, broadband measurement of the radio frequency attenuation length at Summit Station, Greenland
论文作者
论文摘要
在过去的25年中，使用冷极性冰作为中微子靶标对中微子生成的信号的检测已成为检测到乳突外超高能中微子的最有前途的技术（对应于超过0.01 joules joules，或$ 10^{17^{17^{17} $ ELECTON $ ELECTORNOLON VORTON $ 10^）。在2021年夏季，与格陵兰岛（RNO-G）无线电中微子天文台的初步部署一起，我们在格陵兰岛萨米特台（Summit Station）进行了放射性分流学测量，以完善我们对冰目标的理解。我们报告了一种这样的测量结果，即射频电场衰减长度$L_α$。我们发现$l_α$对频率的大约线性依赖性，最适合1500 m的冰的平均现场衰减：$ \ langlel_α\ rangle = \ big（（（1154 \ pm 121） - （0.81 \ pm pm pm pm 0.14）
Over the last 25 years, radiowave detection of neutrino-generated signals, using cold polar ice as the neutrino target, has emerged as perhaps the most promising technique for detection of extragalactic ultra-high energy neutrinos (corresponding to neutrino energies in excess of 0.01 Joules, or $10^{17}$ electron volts). During the summer of 2021 and in tandem with the initial deployment of the Radio Neutrino Observatory in Greenland (RNO-G), we conducted radioglaciological measurements at Summit Station, Greenland to refine our understanding of the ice target. We report the result of one such measurement, the radio-frequency electric field attenuation length $L_α$. We find an approximately linear dependence of $L_α$ on frequency with the best fit of the average field attenuation for the upper 1500 m of ice: $\langle L_α\rangle = \big( (1154 \pm 121) - (0.81 \pm 0.14) (ν/$MHz$)\big)$ m for frequencies $ν\in [145 - 350]$ MHz.
