fix figures

elements.tex

@@ -152,7 +152,15 @@ bend radius, entrance and exit angles etc. Therefore we have divided this sectio
   an \textit{OPAL-cycl} simulation.
 \end{enumerate}
 
-\input{figures/Elements/RBend}
+\begin{figure}[tb]
+\centering
+   \includegraphics{figures/Elements/rbend.png}
+  \caption{Illustration of a general rectangular bend (\keyword{RBEND}) with a positive bend angle $\alpha$. The
+    entrance edge angle, $E_{1}$, is positive in this example. An \keyword{RBEND} has parallel entrance and exit
+    pole faces, so the exit angle, $E_{2}$, is uniquely determined by the bend angle, $\alpha$, and $E_{1}$
+    ($E_{2}=\alpha - E_{1}$). For a positively charge particle, the magnetic field is directed out of the page.}
+  \label{fig:rbend}
+\end{figure}
 
 \subsection{RBend (\textit{OPAL-t})}
 \label{ssec:RBend}
@@ -250,7 +258,14 @@ pole faces. Figure~\ref{rbend} shows an \texttt{RBEND3D} with a positive bend an
 \end{description}
 \clearpage
 
-\input{figures/Elements/SBend}
+\begin{figure}[tb]
+\centering
+  \includegraphics{figures/Elements/sbend.png}
+  \label{fig:sbend}
+  \caption{Illustration of a general sector bend (\keyword{SBEND}) with a positive bend angle $\alpha$. In this example
+    the entrance and exit edge angles $E_{1}$ and $E_{2}$ have positive values. For a positively charge particle,
+    the magnetic field is directed out of the page.}
+\end{figure}
 
 \subsection{SBend (\textit{OPAL-t})}
 \label{ssec:SBend}
@@ -1010,8 +1025,8 @@ This is a restricted feature: \textit{OPAL-cycl}.
 
 \begin{figure}[tb]
 \begin{center}
-\includegraphics[width=0.58\textwidth]{figures/Elements/sbend3d-1}
-\includegraphics[width=0.4\textwidth]{figures/Elements/sbend3d-2}
+\includegraphics[width=0.58\textwidth]{figures/Elements/sbend3d-1.png}
+\includegraphics[width=0.4\textwidth]{figures/Elements/sbend3d-2.png}
 \end{center}
 \caption{A hard edge model of $90$ degree dipole magnet with homogeneous magnetic field. The right figure
 is showing the horizontal cross section of the 3D magnetic field map when $z = 0$}
@@ -1512,7 +1527,7 @@ rf0: RFCavity, VOLT=0.25796, FMAPFN="Cav1.dat",
 Figure~\ref{Cyclotron_cavity} shows the simplified geometry of a cavity gap and its parameters.
 
 \begin{figure}[hbt]
-  \centering\includegraphics[scale=0.6]{./figures/cyclotron/Cavity.pdf}
+  \centering\includegraphics[scale=0.6]{./figures/cyclotron/Cavity.png}
   \caption{Schematic of the simplified geometry of a cavity gap and parameters}
   \label{fig:Cyclotron_cavity}
 \end{figure}
@@ -1826,21 +1841,10 @@ The width of the septum. [{mm}]
  The particle hitting collimator will be recorded and directly deleted from the simulation.
 \end{description}
 
-\begin{tikzpicture}[scale=1.5,axis/.style={very thick, ->, >=stealth'}]
-    % Draw axes
-    \draw [->,thick] (1,-2.0) -- (1,2.0) node (yaxis) [above] {$y$};
-    \draw [->,thick] (-1.2,1.0)  -- (4.0,1.0) node (xaxis) [right] {$x$};
-    \draw (3.5,-0.2) --(2.0,-1.5)
-          (2.0,-1.5) --(2.5,-2.0)
-          (2.5,-2.0) --(4.0,-0.7)
-          (4.0,-0.7) --(3.5,-0.2);
-    \fill[red] (2.25,-1.75)  circle (1pt) node (start)[below] {(xstart,ystart)};
-    \fill[red] (3.75,-0.45)  circle (1pt) node (end)[above] {(xend,yend)};
-    \node (collimator) at (2.55,-0.55)[anchor=mid] {collimator};
-    \draw [<->,thick,blue] (2.75,-0.85)--(3.25,-1.35) node [right] {width};
-
-\end{tikzpicture}
-
+\begin{figure}[tb]
+\centering
+   \includegraphics{figures/Elements/collimator.png}
+\end{figure}
 
 \noindent Example:
 \begin{verbatim}
@@ -1880,20 +1884,10 @@ The y coordinate of the end point. [{mm}]
 The width of the septum. [{mm}]
 \end{description}
 
-\begin{tikzpicture}[scale=1.5,axis/.style={very thick, ->, >=stealth'}]
-    % Draw axes
-    \draw [->,thick] (1,-2.0) -- (1,2.0) node (yaxis) [above] {$y$};
-    \draw [->,thick] (-1.2,1.0)  -- (4.0,1.0) node (xaxis) [right] {$x$};
-    \draw (3.5,-0.2) --(2.0,-1.5)
-          (2.0,-1.5) --(2.1,-1.6)
-          (2.1,-1.6) --(3.6,-0.3)
-          (3.6,-0.3) --(3.5,-0.2);
-    \fill[red] (2.05,-1.55)  circle (1pt) node (start)[below] {(xstart,ystart)};
-    \fill[red] (3.55,-0.25)  circle (1pt) node (end)[above] {(xend,yend)};
-    \node (steptum) at (2.55,-0.55)[anchor=mid] {septum};
-    \draw [<->,thick,blue] (2.75,-0.85)--(2.85,-0.95) node [right] {width};
-
-\end{tikzpicture}
+\begin{figure}[tb]
+\centering
+   \includegraphics{figures/Elements/septum.png}
+\end{figure}
 
 \noindent Example:
 \begin{verbatim}
@@ -1920,19 +1914,10 @@ The y coordinate of the end point. [{mm}]
  The width of the probe, NOT used yet.
 \end{description}
 
-\begin{tikzpicture}[scale=1.5,axis/.style={very thick, ->, >=stealth'}]
-    % Draw axes
-    \draw [->,thick] (0.5,-2.0) -- (0.5,2.0) node (yaxis) [above] {$y$};
-    \draw [->,thick] (-1.2,1.0)  -- (4.0,1.0) node (xaxis) [right] {$x$};
-    \draw (1.5,-0.5) --(3.0,-1.5)
-          (3.0,-1.5) --(3.1,-1.4)
-          (3.1,-1.4) --(1.6,-0.4)
-          (1.6,-0.4) --(1.5,-0.5);
-    \fill[red] (1.55,-0.45)  circle (1pt) node (start)[above] {(xstart,ystart)};
-    \fill[red] (3.05,-1.45)  circle (1pt) node (end)[below] {(xend,yend)};
-    \node (steptum) at (2.55,-0.55)[anchor=mid] {probe};
-    \draw [<->,thick,blue] (2.25,-1.0)--(2.35,-0.9) node [right] {width};
-\end{tikzpicture}
+\begin{figure}[tb]
+\centering
+   \includegraphics{figures/Elements/probe.png}
+\end{figure}
 
 \noindent Example:
 \begin{verbatim}