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\documentclass{article}
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\title{ \Large Enhancing Timing Accuracy in Air Shower Radio Detectors}
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\date{2021-11-22}
\author{
Eric Teunis de Boone\\
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{ \small Supervisor: }\\
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Harm Schoorlemmer \\
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{ \small Second Reader: }\\
Katherine Mulrey
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}
\begin{document}
\maketitle{}
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\vspace{-1em}
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\hrule
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\vspace{1em}
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Radio Detectors have been succesfully applied for detecting air showers, which are caused by a cosmic ray impinging on the Earth's atmosphere.
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In such an airshower, successive interactions will create charged particles which in turn cause a specific electromagnetic signal.
Measuring the development over time of such a signal will give a better insight in the energy content of the shower, and, in turn, allow for better resolution of the initial cosmic ray's properties.
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A difficulty for radio detectors is that, because of their extent, the stations need to communicate wirelessly,
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but an accurate timing is needed to follow a signal.
Advanced analyses require a timing accuracy on the order of $1$~nanosecond, while current detectors reach a timing accuracy up to around $10$~nanoseconds.
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\\
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Various mechanisms are employed to assign time, overall and per station, in radio detectors.
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An important mechanism involves GPS chips.
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Such a chip tracks satellites around the Earth.
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These satellites send out signals which can be used to triangulate the position (and time) of the chip.
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Another example is the use of beacons.
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Sending out a specific signal allows to track this signal across individual stations.
By introducing characteristics into the signal such as beating, the stations then have a time calibration system setup.
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This internship concerns itself with increasing the timing accuracy by investigating the various mechanisms (and their issues) used as timing calibration.
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% For example, since the spatial extent of the radio detectors is large, it might happen that a station on one side might track more or different satellites than a station on the other side of the detector.
% This might introduce a timing difference for GPS chips, decreasing the total timing accuracy attained by the detector.
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\end{document}