The \ctsim package has two executable files: the graphical \helprefn{ctsim}{ctsim} and text \helprefn{ctsimtext}{ctsimtext} programs.
-\chapter{Concepts}\index{Concepts}%
-\setheader{{\it CHAPTER \thechapter}}{}{}{}{}{{\it CHAPTER \thechapter}}%
-\setfooter{\thepage}{}{}{}{}{\thepage}%
-
-\section{Overview}\label{conceptoverview}\index{Concepts,Overview}%
-\section{Phantoms}\label{conceptphantom}\index{Concepts,Phantoms}%
-\section{Scanner}\label{conceptscanner}\index{Concepts,Scanner}%
-\section{Reconstruction}\label{conceptreconstruction}\index{Concepts,Reconstruction}%
+\include{ctsim-concepts}
\chapter{Installation}\index{Installation}%
\setheader{{\it CHAPTER \thechapter}}{}{}{}{}{{\it CHAPTER \thechapter}}%