Radiofrequency ice properties measurements at Taylor Dome, Antarctica, in support of the ANITA experiment

D. Z. Besson, J. Nam, S. Matsuno, S. W. Barwick, J. J. Beatty, W. R. Binns, C. Chen, P. Chen, J. M. Clem, A. Connolly, P. F. Dowkontt, M. A. Duvernois, R. C. Field, D. Goldstein, A. Goodhue, P. W. Gorham, C. Hast, C. L. Hebert, S. Hoover, M. H. IsraelJ. Kowalski, J. G. Learned, K. M. Liewer, J. T. Link, E. Lusczek, B. Mercurio, C. Miki, P. Miočinović, C. J. Naudet, J. Ng, R. Nichol, K. Palladino, K. Reil, A. Romero-Wolf, M. Rosen, L. Ruckman, D. Saltzberg, D. Seckel, G. S. Varner, D. Walz, F. Wu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Radiowave detection of the Cherenkov radiation produced by neutrino-ice collisions requires an understanding of the radiofrequency (RF) response of cold polar ice. We herein report on a series of radioglaciological measurements performed approximately 10 km north of Taylor Dome Station, Antarctica from Dec. 6, 2006 - Dec. 16, 2006. Using RF signals broadcast from a dual-polarization horn antenna on the surface transmitting signals which reflect off the underlying bed and back up to a dual polarization surface horn receiver, we have made time-domain estimates of both the real (index-of-refraction "n") and imaginary (attenuation length "Latten") components of the complex ice dielectric constant (ε = ε′ +iε′ ′). We have also measured the uniformity of ice response along two orthogonal axes in the horizontal plane. We observe an apparent wavespeed asymmetry of order 0.1%, between two orthogonal linear polarizations projected into the horizontal plane, consistent with some previous measurements, but somewhat lower than others.

Original languageEnglish (US)
Title of host publicationProceedings of the 30th International Cosmic Ray Conference, ICRC 2007
PublisherUniversidad Nacional Autonoma de Mexico
Pages1241-1244
Number of pages4
Volume3
EditionOG PART 2
StatePublished - Jan 1 2007
Event30th International Cosmic Ray Conference, ICRC 2007 - Merida, Yucatan, Mexico
Duration: Jul 3 2007Jul 11 2007

Other

Other30th International Cosmic Ray Conference, ICRC 2007
CountryMexico
CityMerida, Yucatan
Period7/3/077/11/07

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