Going for second round of feedback

presentations/2023-03-13_step_up_interview/2023-STEP_UP.tex

@@ -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}
-	Airshower split into EM, Muon and Hadron
 	\begin{columns}
 		\begin{column}{0.4\textwidth}
+			Airshower split into EM, Muon and Hadron
 		\end{column}
-		\begin{column}{0.6\textwidth}
+		\begin{column}{0.5\textwidth}
 			\begin{figure}
 				\centering
 				\includegraphics[width=\textwidth]{1607.08781/fig02a_airshower+detectors.png}
-				\caption{
-					\cite{Schroder:2016hrv}
-				}
+%				\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}
 
-\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}
-	   		}
-	   	\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}
+
+
 
 
 %%%%%%%%%%%%%%