<i>In situ</i>, broadband measurement of the radio frequency attenuation length at Summit Station, Greenland
J. A. Aguilar, P. Allison, J. J. Beatty, D. Besson, A. Bishop, O. Botner, Sjoerd Bouma, S. Buitink, Maddalena Cataldo, Brian Clark, Z. Curtis-Ginsberg, A. Connolly, P. Dasgupta, Simon De Kockere, K. D. de Vries, Cosmin Deaconu, M. A. DuVernois, Christian Gläser, A. Hallgren, S. Hallmann, J. Hanson, B. Clifford Hendricks, C. Hornhuber, K. Hughes, A. Karle, J. L. Kelley, Ilya Kravchenko, Ryan Krebs, R. Lahmann, Uzair Abdul Latif, J. Mammo, Zach Meyers, K. Michaels, Katharine Mulrey, A. Nelles, A. Novikov, A. Nozdrina, Eric Oberla, Bob Oeyen, Y. Pan, Hershal Pandya, Ilse Plaisier, N. Punsuebsay, Lilly Pyras, D. Ryckbosch, O. Schölten, D. Seckel, Mohammad Ful Hossain Seikh, Daniel Smith, D. Southall, J. Torres, S. Toscano, D. Tosi, Dieder Van den Broeck, N. van Eijndhoven, A. G. Vieregg, C. Welling, D. R. Williams, Stephanie Wissel, R. Young, A. Zink
Abstract
Abstract 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 $L_\alpha$ . We find an approximately linear dependence of $L_\alpha$ on frequency with the best fit of the average field attenuation for the upper 1500 m of ice: $\langle L_\alpha \rangle = ( ( 1154 \pm 121) - ( 0.81 \pm 0.14) \, ( \nu /{\rm MHz}) ) \,{\rm m}$ for frequencies ν ∈ [145 − 350] MHz.