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Abstract:
Recent work with LOFAR has shown that aperture-array radio telescopes
are highly effective at measuring the radio footprint from a cosmic
ray interacting in the atmosphere, allowing precise reconstruction of
its energy and mass. The MWA, and eventually SKA-LOW, have the
potential to improve on these results, improving our understanding of
cosmic rays in the critical energy range believed to correspond to a
transition from Galactic to extragalactic origin. Such an experiment
depends on simultaneous high-time-resolution observations with the
radio telescope and with an intermingled array of particle detectors,
to detect the cosmic-ray interaction in real time and trigger the
storage of radio data. I will describe the development of a
particle-detector unit intended for deployment with the MWA and
SKA-LOW, along with some of the scientific motivation for this
experiment.
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