Abstract
The ARIANNA experiment aims to detect the radio signals of cosmogenic neutrinos. It is running in its pilot phase on the Ross Ice-shelf, and one station has been installed at South Pole. The ARIANNA concept is based on installing high-gain log periodic dipole antennas close to the surface monitoring the underlying ice for the radi signals following a neutrino interaction. Especially, but not only in this configuration, it is essential to understand the trajectories that the signals take through the ice. We will report on various experimental evidence concerning the signal propagation in ice. We will discuss the implications for neutrino detection, results of neutrino searches and give the first introduction to a new modular simulation framework.
Highlights
The ARIANNA experiment aims to detect the radio signals of cosmogenic neutrinos. It is running in its pilot phase on the Ross Ice-shelf, and one station has been installed at South Pole
We will report on various experimental evidence concerning the signal propagation in ice
We will discuss the implications for neutrino detection, results of neutrino searches and give the first introduction to a new modular simulation framework
Summary
The ARIANNA experiment is currently running in its pilot-phase, the Hexagonal-Radio-Array (HRA) on the Ross Ice-Shelf. The main HRA stations have been running reliably since 2014. The fully autonomous stations run on solar-panels and batteries. In 2016 a first custom-made wind turbine was installed that was found fully functional after the Antarctic winter. The second generation wind turbine was installed in 2017 and, as of June 2018, it is powering a station during polar night. The batteries charge quickly during periods of high winds, which keeps the station running after the winds have died down again. A third version of the turbine is currently being constructed, which is further optimized for the windspeeds and temperatures in Moore’s Bay. In order to power autonomous stations through the polar night a wind turbine that does not create RF noise and can power a station even at low windspeeds is a prerequisite
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