

\subsection{\bf Example of Cherenkov Light}

\begin{slide}
\begin{itemize}
\item Cherenkov Light is given off by a charged particle in certain
media.

\item The amount of radiation is used to distinguish different
particles in physics experiments.

\item Total pulse height observed $y={\displaystyle
\sum^{N_\gamma}_{i=1}} y_i$.

\item $y_i = $ response in phototube of a single photon---probably
Gaussian (i.e., limit of large Poisson distribution).

\item $N_\gamma = $ number of photons given off in Cherenkov medium
which is certainly Poisson.
\end{itemize}

\vspace*{10pt}
\centerline{\psfig{figure=fig7.phys.ps,clip=true,width=5.5in}}
\vspace*{10pt}
\end{slide}

