\chapter{Tomography in the tau domain} \label{chap:tau}
\sepinput{macros}

\section{Introduction and summary}
\sepinput{intro}

\section{Ray based tomography in depth}
\sepinput{depth}

\section{Ray based tomography in tau}
\sepinput{tau}

%background
\par
%By formulating our back projection operator in terms of vertical
%travel-time ($\tau$) rather than depth our reflector locations become
%more stable \cite{Biondi.sep.95.biondo1,Clapp.sep.97.bob2}.  

\section{Operator change in tau vs. depth}
\sepinput{better}

%\section{Model resolution tau vs. depth tomography}
%\sepinput{resolution}

\section{Angle domain migration tomography}
\sepinput{angle}


\section{Comparing depth and tau tomography}
\sepinput{synth}



%\section{Conclusions}
%Formulating tomography in tau rather than depth space makes

\newpage
\cleardoublepage
