Long-baseline horizontal radio-frequency transmission through polar ice

We report on analysis of englacial radio-frequency (RF) pulser data received over horizontal baselines of 1--5 km, based on broadcasts from two sets of transmitters deployed to depths of up to 1500 meters at the South Pole. First, we analyze data collected usingtwo RF bicone transmitters 1400 meters...

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Bibliographic Details
Main Authors: Allison, P., Archambault, S., Beatty, J. J., Besson, D. Z., Chen, C. C., Chen, C. H., Chen, P., Christenson, A., Clark, B. A., Clay, W., Connolly, A., Cremonesi, L., Deaconu, C., Duvernois, M., Friedman, L., Gaior, R., Hanson, J., Hanson, K., Haugen, J., Hoffman, K. D., Hong, E., Hsu, S. Y., Hu, L., Huang, J. J., Huang, A. M. -H., Hughes, K., Ishihara, A., Karle, A., Kelley, J. L., Khandelwal, R., Kim, M. -C., Kravchenko, I., Kruse, J., Kurusu, K., Kuwabara, T., Latif, U. A., Laundrie, A., Li, C. -J., Liu, T. -C., Lu, M. -Y., Madison, B., Mase, K., Meures, T., Nam, J., Nichols, R. J., Novikov, A., Nozdrina, A., Oberla, E., Pan, Y., Pfendner, C., Relich, M., Sandstrom, P., Seckel, D., Shiao, Y. S., Shultz, A., Smith, D., Song, M., Torres, J., Touart, J., Varner, G. S., Vieregg, A., Wang, M. Z., Wang, S. H., Wissel, S., Yoshida, S., Young, R.
Format: Article in Journal/Newspaper
Language:unknown
Published: arXiv 2019
Subjects:
Instrumentation and Methods for Astrophysics astro-ph.IM
FOS Physical sciences
South Pole
ice core
South pole
Online Access:https://dx.doi.org/10.48550/arxiv.1908.10689
https://arxiv.org/abs/1908.10689
Description
Summary:We report on analysis of englacial radio-frequency (RF) pulser data received over horizontal baselines of 1--5 km, based on broadcasts from two sets of transmitters deployed to depths of up to 1500 meters at the South Pole. First, we analyze data collected usingtwo RF bicone transmitters 1400 meters below the ice surface, and frozen into boreholes drilled for the IceCube experiment in 2011. Additionally, in Dec., 2018, a fat-dipole antenna, fed by one of three high-voltage (~1 kV), fast (~(1-5 ns)) signal generators was lowered into the 1700-m deep icehole drilled for the South Pole Ice Core Experiment (SPICE), approximately 3 km from the geographic South Pole. Signals from transmitters were recorded on the five englacial multi-receiver ARA stations, with receiver depths between 60--200 m. We confirm the long, >1 km RF electric field attenuation length, test our observed signal arrival timing distributions against models, and measure birefringent asymmetries at the 0.15% level.

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