\documentclass{../signatures}
\labacronym{RUT}
\labtitle{Rutherford Scattering}

\begin{document}

\maketitle

\names

\textbf{Before the Lab}

You must watch the Radiation Safety video, and get a Radiation Ring before you use the apparatus in this experiment. View the Rutherford video about this experiment online.
\\[24pt]

Ring \# $\rule{1cm}{0.15mm}$  Issued (Date and Signed) $\rule{3cm}{0.15mm}$  Returned (Date and Signed) $\rule{3cm}{0.15mm}$
\\[12pt]

\textbf{Suggested reading to start with (see the end of the manual for more):}
\begin{enumerate}
    \item 111B RUT Manual

    \item A. C. Melissinos, "Experiments in Modern Physics", Academic Press, New York, 2003, the section on Rutherford Scattering.     
\end{enumerate}
\prelab

\begin{enumerate}

    \item Describe Rutherford scattering. What particles are involved in our experiment, and what interaction causes the scattering?
    
    \item Derive the Rutherford scattering formula. What assumptions have been made in this formula and how this system different from our experimental setup? Define or explain each of the terms in the formula. What is a solid angle and what is a scattering cross section? How is the cross section related to what you actually measure in the experiment?

    \item Estimate how often multiple scattering is expected in our foil. What physical parameters control it?

    \item The Rutherford formula diverges as $\theta\rightarrow0$. Why does this divergence occur? Explain why our measured counts at small angles remain finite.

    \item Why is it difficult to obtain data at large scattering angles, give the reason quantitatively.

    \item When fitting data to determine the gold nuclear charge Z, how would you choose an angular fitting window?

    \item What steps must you take to ensure the safety of yourself and the apparatus?
       \\[36pt]
\end{enumerate}

\prelabsignatures

\midlab

\begin{enumerate}

    \item By day 4 you should have enough data to demonstrate the angular dependence of Rutherford scattering. Show it to an instructor and ask for a signature.
\\[36pt]
\end{enumerate}

\midlabsignatures{4}

\checkpointsection 

\begin{enumerate}

\item \checkp{PN Detector}

\item \checkp{Vacuum System}

\item \checkp{Signals}

\item \checkp{Measurements}

\item \checkp{Trial Run Analysis}

\item \checkp{Spectrum}

\end{enumerate}

\end{document}