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Taking a break: significant additions

This commit is contained in:
Eric Teunis de Boone 2020-04-19 19:08:38 +02:00
parent 1f32942419
commit 8866f11e31
10 changed files with 227 additions and 19 deletions

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@ -2,9 +2,10 @@
\usetheme{Antibes} \usetheme{Antibes}
\usepackage{pgfpages} %\usepackage{pgfpages}
\setbeameroption{show notes on second screen=left} %\setbeameroption{show notes on second screen=left}
%\setbeameroption{hide notes} %\setbeameroption{show notes}
\setbeameroption{hide notes}
%\setbeameroption{show only notes} %\setbeameroption{show only notes}
%%%%% Remove Subsection bar from header %%%%% Remove Subsection bar from header
@ -175,18 +176,17 @@
\item ORCA: \item ORCA:
\begin{itemize} \begin{itemize}
\item Focus on atmospheric neutrinos \item Focus on atmospheric neutrinos
\item densely packed \item densely packed $\mapsto$ GeV to TeV $\nu$'s
\item GeV to TeV $\nu$'s
\end{itemize} \end{itemize}
\item ARCA: \item ARCA:
\begin{itemize} \begin{itemize}
\item Focus on (extra)galactic neutrinos \item Focus on (extra)galactic neutrinos
\item sparsely packed \item sparsely packed $\mapsto$ TeV to PeV $\nu$'s
\item TeV to PeV $\nu$'s
\end{itemize} \end{itemize}
} }
%% Technology %% %% Technology %%
\section{Detector Design}
\begin{frame} \begin{frame}
\frametitle{Detector Design} \frametitle{Detector Design}
\pause \pause
@ -201,6 +201,8 @@
\item Cherenkov light \item Cherenkov light
\item Digital-Optical Module \item Digital-Optical Module
} }
%%
\begin{frame} \begin{frame}
\frametitle{Detector Prototypes} \frametitle{Detector Prototypes}
\begin{columns} \begin{columns}
@ -208,14 +210,15 @@
\begin{figure} \begin{figure}
\includegraphics[width=\textwidth]{images/km3net-ppm-du-schematic.png} \includegraphics[width=\textwidth]{images/km3net-ppm-du-schematic.png}
\end{figure} \end{figure}
\column{0.4\textwidth} \column{0.5\textwidth}
\begin{itemize} \begin{itemize}
\item Digital Optical Module (April 2013) \item Digital Optical Module \\(April 2013)
\item Detection Unit (May 2014) \item Detection Unit \\(May 2014)
\end{itemize} \end{itemize}
\end{columns} \end{columns}
\end{frame} \end{frame}
%%
\begin{frame} \begin{frame}
\begin{columns} \begin{columns}
\column{0.6\textwidth} \column{0.6\textwidth}
@ -236,33 +239,141 @@
%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{frame} \begin{frame}
\frametitle{ Digital Optical Modules } \frametitle{ Digital Optical Modules }
\begin{columns}
\column{.4\textwidth}
Sensors
\begin{itemize}
\item 31 PMTs per DOM \\ $\mapsto$ $1400 \mathrm{cm}^2$
\item Acoustic Sensor
\item Compass
\item Accelerometers
\end{itemize}
\column{.6\textwidth}
\begin{figure} \begin{figure}
\includegraphics[width=0.6\textwidth]{images/km3net-build-dom.png} \includegraphics[width=\textwidth]{images/km3net-build-dom-with-piezo.png}
\end{figure} \end{figure}
\end{columns}
\end{frame}
\note[itemize]
{
\item Acoustics: resolution to 20 cm $\mapsto$ 1 ns
}
%%
\begin{frame}
\frametitle{ DOM Data }
\begin{columns}
\column{.4\textwidth}
\begin{itemize}
\item Data each 8ns
\begin{itemize}
\item Start Time ($0.3$ photo-electrons)
\item Time over Threshold
\end{itemize}
\bigskip
\item ``All Data to Shore''
\item $2^{24} \times 8\mathrm{ns} \approx 134\mathrm{ms}$\note{ uplink: 25 Gb/s $\mapsto $ reduction of data by $10^5$}
\end{itemize}
\column{.6\textwidth}
\begin{figure}
\includegraphics[width=\textwidth]{images/km3net-arca-simulated-time-distribution.png}
\end{figure}
\end{columns}
\end{frame} \end{frame}
% Calibration
%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{frame} \begin{frame}
\frametitle{Calibration} \frametitle{Calibration}
\begin{itemize} \begin{itemize}
\item Acoustic Sensor \item Nanosecond level precision
\item $^{40}$K decay in seawater \begin{itemize}
\item Time between PMTs in the same DOM
\item Time between DOMs
\end{itemize}
\end{itemize}
\end{frame}
%%
\begin{frame}
\frametitle{Calibration}
Time between PMTs in the same DOM
\begin{itemize}
\item $^{40}K$ decay in sea water
\end{itemize} \end{itemize}
\begin{figure} \begin{figure}
\includegraphics[width=0.4\textwidth]{images/km3net-build-dom-with-piezo.png} \includegraphics[width=1.1\textwidth]{images/km3net-ppm-du-field-of-view-dom-3.png}
\end{figure} \end{figure}
\end{frame} \end{frame}
\note[itemize] \note[itemize]
{ {
\item $^{40}$K \item $^{40}$K decay
\begin{itemize} \begin{itemize}
\item $\lambda_{1/2}$ Gyr \item $\lambda_{1/2}$ Gyr
\item 150 Cherenkov $\gamma$ per decay
\end{itemize} \end{itemize}
} }
\subsection{Event Trigger} %%
\begin{frame}
\frametitle{Calibration}
\begin{columns}
\column{.4\textwidth}
\begin{figure}
\vskip -1.5em
\includegraphics[width=0.5\textwidth]{images/km3net-build-detection-string.png}
\end{figure}
\column{.6\textwidth}
Time between DOM
\begin{itemize}
\item LED nanobeacon
\item Acoustic Piezo sensor
\end{itemize}
\begin{figure}
\includegraphics[width=.7\textwidth]{images/km3net-build-dom-with-piezo.png}
\end{figure}
\end{columns}
\end{frame}
\note[itemize]
{
\item
}
%%
\begin{frame}
\frametitle{Background Effects}
\begin{itemize}
\item $^{40}$K decay in seawater
\item Bioluminescence
\item Dust in water
\end{itemize}
\end{frame}
\note[itemize]
{
\item LED: 470nm, fully controlled from shore ($I$, $f$)
\item bioluminescence: marine sciences, effect of upto 10\%
\item
}
% Events
%%%%%%%%%%%%%%%%%%%%%%%%
\begin{frame} \begin{frame}
\frametitle{Event Triggers} \frametitle{Event Triggers}
Multiple Triggers
\begin{itemize}
\item L0: 0.3 photo-electrons in PMT (in DOM)
\item L1: 2 hits in separate PMTs within 25ns
\item L2: use orientation of PMTs
\note { L2 halves the remaining hits }
\end{itemize}
\end{frame} \end{frame}
\note[itemize]
{
\item L1:
\begin{itemize}
\item 1kHz per DOM of which 0.6 is $^{40}K$ decay.
\item study gives relative time offset mostly 10 ns.
\end{itemize}
\item L2: halves the remaining hits
}
%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%
%% Physics %% %% Physics %%
@ -276,12 +387,65 @@
\end{figure} \end{figure}
\end{frame} \end{frame}
%%
\begin{frame}
\frametitle{ORCA - Particle Physics}
\begin{columns}
\column{.4\textwidth}
\begin{itemize}
\item
\end{itemize}
\column{.6\textwidth}
\begin{figure}
\includegraphics[width=\textwidth]{images/km3net-orca-footprint.png}
\end{figure}
\end{columns}
\end{frame}
\note[itemize]
{
\item horizontal distance 20m
\item vertical distance 6m
}
\begin{frame}
\begin{figure}
\includegraphics[width=\textwidth]{images/neutrino-signal-background.png}
\end{figure}
\end{frame}
\subsection{Neutrino Mass Hierarchy} \subsection{Neutrino Mass Hierarchy}
\begin{frame} \begin{frame}
\frametitle{Neutrino Mass Hierarchy} \frametitle{Neutrino Mass Hierarchy}
\begin{figure}
\includegraphics[width=\textwidth]{images/neutrino-mass-hierarchies.png}
\end{figure}
\end{frame} \end{frame}
%%
\begin{frame}
\frametitle{Neutrino Oscillations}
\end{frame}
\note[itemize]
{
\item mass eigenstates $\neq$ flavour eigenstates, mass squared diff
}
%%
\begin{frame}
\frametitle{Neutrino Oscillations in Matter}
\end{frame}
\note[itemize]
{
\item vaccum oscillations insensitive to sign of mass sq. diff.
\item matter is sensisitive $\mapsto$ different cross-sections for $\nu$ and $\bar{\nu}$
\item effect largest for $E_\nu \approx 30 GeV/\rho$ $\mapsto$ $1 - 20 GeV$ in KM3NeT
\item cannot measure charge
\item $\sigma(\nu N) \approx 2\sigma(\bar{\nu} N)$
}
%%%%%%%%%%%%%%%
%% ARCA %% ARCA
%%%%%%%%%%%%%%%
\section{ARCA - Astroparticle Physics} \section{ARCA - Astroparticle Physics}
\begin{frame} \begin{frame}
\frametitle{ARCA - Astroparticle Physics} \frametitle{ARCA - Astroparticle Physics}
@ -296,7 +460,14 @@
\end{figure} \end{figure}
\end{columns} \end{columns}
\end{frame} \end{frame}
\note[itemize]
{
\item horizontal distance 90m
\item vertical distance 36m
\item depth 3.5km
}
%%
\begin{frame} \begin{frame}
\frametitle{Differences between ARCA and ORCA} \frametitle{Differences between ARCA and ORCA}
\begin{figure} \begin{figure}
@ -304,9 +475,46 @@
\end{figure} \end{figure}
\end{frame} \end{frame}
%%
\begin{frame}
\frametitle{IceCube and Expected Signal}
\begin{itemize}
\item Signals from 10 TeV to above 1 PeV
\item 54 events with reconstructed energy above 30TeV (2016)
\end{itemize}
\pause
\begin{figure}
\includegraphics[width=.7\textwidth]{images/km3net-arca-significance-diffuse-neutrinos.png}
\end{figure}
\end{frame}
%%
\begin{frame}
\frametitle{Expected Signals: Diffuse Flux from Galactic Plane}
\begin{figure}
\includegraphics[width=\textwidth]{images/galactic-plane-1-GeV-gamma-rays.png}
\end{figure}
\end{frame}
\note[itemize]
{
\item TeV $\gamma$-ray emmission from GP
\item same hadronic processes lead to high-energy $\nu$'s
}
%%
\begin{frame}
\frametitle{Expected Signals: Diffuse Flux from Galactic Plane}
\begin{figure}
\includegraphics[width=0.9\textwidth]{images/km3net-arca-significance-diffuse-galactic-plane.png}
\end{figure}
\end{frame}
\subsection{Glashow Resonance} \subsection{Glashow Resonance}
\begin{frame} \begin{frame}
\frametitle{Glashow Resonance} \frametitle{Glashow Resonance}
\begin{figure}
\includegraphics[width=0.9\textwidth]{images/km3net-arca-eff-area-glashow-resonance.png}
\end{figure}
\end{frame} \end{frame}
@ -322,7 +530,7 @@
\item ARCA: Astrophysics Research with Cosmics in the Abyss \item ARCA: Astrophysics Research with Cosmics in the Abyss
\item ORCA: Oscillation Research with Cosmics in the Abyss \item ORCA: Oscillation Research with Cosmics in the Abyss
\end{itemize} \end{itemize}
\item Field of View contains Galactic Plane \item Significant results expected within a few years of observations
\end{itemize} \end{itemize}
\pause \pause
\begin{center} \begin{center}