Going for second round of feedback

This commit is contained in:
Eric Teunis de Boone 2023-03-10 02:46:26 +01:00
parent 6a5966f668
commit 8a5de083fe
26 changed files with 161 additions and 36 deletions

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@ -19,7 +19,7 @@
\setbeamerfont{page number in head/foot}{size=\normalsize}
\setbeamertemplate{footline}[frame number]
\title[]{}
\title[]{Early contest STEP-UP}
\date{March $13^{\text{\tiny{th}}}$, 2023}
\author{E.T. de Boone}
@ -29,62 +29,112 @@
% Context
%%%%%%%%%
\begin{frame}{Airshowers from Ultra High Energy particles}
Processes in the cosmos can produce UHE particles
academic curriculum?
\begin{figure}
\includegraphics[width=\textwidth]{grand/astroparticletypes_grand.jpg}
\end{figure}
\end{frame}
\begin{frame}{Radio signals and Airshowers}
\begin{columns}
\begin{column}{0.4\textwidth}
Airshower split into EM, Muon and Hadron
\begin{columns}
\begin{column}{0.4\textwidth}
\end{column}
\begin{column}{0.6\textwidth}
\begin{figure}
\centering
\includegraphics[width=\textwidth]{1607.08781/fig02a_airshower+detectors.png}
\caption{
\cite{Schroder:2016hrv}
}
\end{figure}
\end{column}
\end{columns}
\end{frame}
\begin{frame}{Radio Interferometry}
\begin{columns}
\begin{column}{0.4\textwidth}
\includegraphics[width=\textwidth]{Schematic_RIT_extracted.png}
\end{column}
\begin{column}{0.5\textwidth}
\begin{figure}
\includegraphics[width=\textwidth]{2006.10348/fig01.png}
\caption{
\cite{Schoorlemmer:2020low}
}
\centering
\includegraphics[width=\textwidth]{1607.08781/fig02a_airshower+detectors.png}
% \caption{
% \cite{Schroder:2016hrv}
% }
\end{figure}
\end{column}
\end{columns}
\begin{figure}
\centering
\includegraphics<2>[width=\textwidth]{airshower/airshower_radio_polarisation.jpg}%
\end{figure}
\end{frame}
\begin{frame}{Radio Interferometry: Concept}
\begin{columns}
\begin{column}{0.4\textwidth}
\begin{figure}
\includegraphics[width=\textwidth]{radio_interferometry/Schematic_RIT_extracted.png}
\end{figure}
\end{column}
\begin{column}{0.6\textwidth}
\vspace*{\fill}
\begin{itemize}
\item<1-> Measure signal $S_i(t)$ at antenna $\vec{a_i}$
\item<2-> Calculate light travel time \\[5pt]
$\Delta_i(\vec{x}) = \frac{ \left| \vec{x} - \vec{a_i} \right| }{c} n_{eff}$
\item<2-> Sum waveforms accounting \\
for time delay \\[5pt]
$S(\vec{x}, t) = \sum S_i( t + \Delta_i(\vec{x}) )$
\end{itemize}
\vspace*{\fill}
\begin{figure}% Spatially
\includegraphics<1>[width=0.8\textwidth]{radio_interferometry/single_trace.png}%
\includegraphics<2>[width=0.8\textwidth]{radio_interferometry/trace_overlap_bad.png}%
\includegraphics<3>[width=0.8\textwidth]{radio_interferometry/trace_overlap_medium.png}%
\includegraphics<4>[width=0.8\textwidth]{radio_interferometry/trace_overlap_best.png}%
\end{figure}
\end{column}
\end{columns}
\end{frame}
% My Internship
%%%%%%%%%%%%%%%
\begin{frame}{Timing Constraint for Radio Interferometry}
RI requires $\sigma_t < 1 \mathrm{ns}$\\
GPS clock accuracy in current experiments not enough, with $\sigma_t \sim 8\mathrm{ns}$\\
\vskip 1em
$\mapsto$ my internship
\\
hardware delays\\
beacon simulations
\vspace*{ -2em }
Required time accuracy $< 1 \mathrm{ns}$ not provided by GNSS $ \gtrsim 5 \mathrm{ns}$.
\vspace{ 2em }
\begin{columns}
\begin{column}{0.4\textwidth}
Additional synchronisation
using physics band
\begin{itemize}
\item Pulsed beacon
\item Long period ($\sim 1 \mathrm{\mu s}$)% (AERA)
\item<3-> Short period ($\lesssim 20 \mathrm{ns}$)
\end{itemize}
\end{column}
\begin{column}{0.6\textwidth}
\begin{figure}% Clock error fixes
\includegraphics<1>[width=\textwidth]{radio_interferometry/trace_overlap/dc_grid_power_time_fixes.py.scale4d.best.trace_overlap.zoomed.repair_none.png}%
\includegraphics<2>[width=\textwidth]{radio_interferometry/trace_overlap/dc_grid_power_time_fixes.py.scale4d.best.trace_overlap.zoomed.no_offset.png}%
\includegraphics<3>[width=\textwidth]{radio_interferometry/trace_overlap/dc_grid_power_time_fixes.py.scale4d.best.trace_overlap.zoomed.repair_phases.png}%
\includegraphics<4>[width=\textwidth]{radio_interferometry/trace_overlap/dc_grid_power_time_fixes.py.scale4d.best.trace_overlap.zoomed.repair_all.png}%
\end{figure}
\end{column}
\end{columns}
\end{frame}
% Towards GRAND
%%%%%%%%%%%%%%%%%%%%
\begin{frame}{Advantages of Radio Interferometry}
trace airshower longitudinal development\\
lower snr threshold
\begin{columns}
\begin{column}{0.4\textwidth}
\begin{itemize}
\item Trace longitudinal development of airshower
\item Lower SNR threshold
\end{itemize}
\end{column}
\begin{column}{0.6\textwidth}
\begin{figure}
\includegraphics[width=\textwidth]{2006.10348/fig01.png}
% \caption{
% \cite{Schoorlemmer:2020low}
% }
\end{figure}
\end{column}
\end{columns}
\end{frame}
\begin{frame}{Physics Improvement of Radio Interferometry}
@ -93,6 +143,19 @@
direction reconstruction improved\\
relevance for $\nu$s pointing back to sources
% \visible<2->{
% \vspace*{\fill}
% \begin{center}
% \begin{minipage}{.6\textwidth}
% \hrule
% \centering
% \vspace{10pt}
% \textit{Thank you!}
% \end{minipage}
% \end{center}
% \vspace{\stretch{2}}
% }
\end{frame}
@ -100,7 +163,69 @@
% Backup slides
%%%%%%%%%%%%%%%
\appendix
\frame{Back-up slides}
\section{Supplemental material}
\begin{frame}[c]
\centering
Supplemental material
\end{frame}
%%%%%%%%%
\subsection{Single frequency beacon synchronisation}
\begin{frame}{Short period beacon synchronisation}
\begin{figure}
\includegraphics<1>[width=\textwidth]{beacon/08_beacon_sync_timing_outline.pdf}%
\includegraphics<2>[width=\textwidth]{beacon/08_beacon_sync_synchronised_outline.pdf}%
\includegraphics<3>[width=\textwidth]{beacon/08_beacon_sync_synchronised_period_alignment.pdf}%
\end{figure}
\end{frame}
\begin{frame}{Time resolving short period beacon}
\begin{figure}
\includegraphics<1>[width=\textwidth]{radio_interferometry/dc_grid_power_time_fixes.py.X400.repair_none.scale4d.pdf}
\includegraphics<2>[width=\textwidth]{radio_interferometry/dc_grid_power_time_fixes.py.X400.repair_phases.scale4d.pdf}
\includegraphics<3>[width=\textwidth]{radio_interferometry/dc_grid_power_time_fixes.py.X400.repair_all.scale4d.pdf}
\includegraphics<4>[width=\textwidth]{radio_interferometry/dc_grid_power_time_fixes.py.X400.no_offset.scale4d.pdf}
\end{figure}
\end{frame}
%%%%%%%%%%
\subsection{GNSS clock stability}
\begin{frame}{GNSS clock stability I}
\begin{columns}
\begin{column}{0.4\textwidth}
\begin{figure}
\centering
\includegraphics[width=0.8\textwidth]{grand/setup/antenna-to-adc.pdf}
\caption{
GRAND Digitizer Unit's ADC to antennae
}
\end{figure}
\end{column}
\hfill
\begin{column}{0.5\textwidth}
\begin{figure}
\includegraphics[width=\textwidth]{grand/setup/channel-delay-setup.pdf}%
\caption{
Channel filterchain delay experiment
}
\end{figure}
\end{column}
\end{columns}
\end{frame}
\begin{frame}{GNSS clock stability II}
\begin{figure}
\centering
\includegraphics[width=0.7\textwidth]{grand/setup/grand-gps-setup.pdf}
\caption{
GNSS stability experiment
}
\end{figure}
\end{frame}
%%%%%%%%%%%%%%