Temp overview

\special{papersize=8.5in,11in}

\begin{center} {\LARGE{\underline{CT Experiment (E12-06-107) Run Plan Overview}}}\\ \large{\today} \end{center}

\begin{table}[htbp] \flushleft \large { \mathbf { \caption{Kinematics for the run.} \begin{tabular}{ccccccl} \hline \hline <math>Q^2</math> &<math>E_e</math> & <math>\theta_{e'}^{HMS}</math> & <math>p_{HMS}</math> & <math>\theta_{SHMS}</math> & <math>p_{SHMS}</math> & notes \\ \hline GeV<math>^2</math> & GeV & deg & GeV/c & deg & GeV/c & \\ \hline \hline 8.01 & 6.4 & 45.07 & 2.131 & 17.13 &5.122 & { overlap with E94139, first 3 pass kinematics, 1\ 14.76 & 10.6 & 41.8 & 2.736 & 12.02 & 8.753 & { First 5 pass kinematics 2-2.5\ 12.43 & 10.6 & 31.5 & 3.978 & 16.08 & 7.502 & { Second 5 pass kine, run with 2\ 10.02 & 10.6 & 24.48 & 5.259 & 20.55 & 6.209 & { Third 5 pass kine, run with 1.4\ 10.02 & 10.6 & 24.48 & 5.259 & 17.55 & 6.209 & { proton angle scan, ~2.5\ 10.02 & 10.6 & 24.48 & 5.259 & 23.55 & 6.209 & { proton angle scan, ~2.5\ \hline \hline \end{tabular} (1) }} \end{table}

All time estimates in the overview assume 50\

including configuration change time and a beam current of 65 <math>\mu</math>A. \

<math>2ex]

\subsection*{Last shift before Experiment begins:}

\item{All spectrometer magnets on to correct polarity and cycled to initial values. Spectrometers also at initial angles.}

\item{Check that no new obstructions have appeared since the spectrometer angles were certified. For example, ladders, RadCon survey ropes, etc.}

\item{Double-check HMS/SHMS Gas Cerenkov pressure is at correct value.}

\item{Verify there are no obstructions between the detectors (ie, no WC covers, no dangling cables, etc.) on both spectrometers.}

\item{Verify there are no unusual obstructions between the scattering chamber and the spectrometer front windows. Make sure any protective windows on the scattering chamber have been removed.}

\item{Lock up the hall.}

\item{Clean up the counting house. Make sure all terminals, consoles, and printers

   are alive and well.}

\item{Take a cosmic run and look for problems.}

\pagebreak \noindent {\color{blue}{ \large \mathbf{6.4 GeV data taking: 60 beam hours scheduled, need 8 hrs for calibration and 52 hrs (at 50\

{\BrickRed{ \item{Calibrations <math>\Rightarrow</math> 8 hours}

  \item{Verify magnets properly cycled - Beam energy measurement - Harp scan}  \item{Detector checkout with 3/4 trigger, and long run for detector ca

libration} \item{BCM Calibration (unless one was completed very close to the start of experiment)} \item{<math>ep</math> elastic coincidences, (Heepcheck) <math>Q^2</math>=4.0 GeV<math>^2</math>, HMS at 4.263 GeV/c, 22.10 deg, SHMS at 2.928 GeV/c, 33.21 deg ,expected rate ~ few Hz \@ 65 <math>\mu</math>A current. (at least 3 hrs).} \item{verify timing of all triggers} }}

\vspace{5ex}

\item{<math>Q^2=8.0</math> <math>\rm (GeV/c)^2</math> production, goal: 10000 cnts}

  \item{LH + MT 12 hrs + 4 hrs}  \item{C 36 hrs}  

\noindent {\color{blue}{ \large \mathbf{10.6 GeV data taking: 300 beam hours scheduled, need 8 hrs for calibration and 292 hrs (at 50\

{\BrickRed{ \item{Calibrations <math>\Rightarrow</math> 8 hours}

  \item{Verify magnets properly cycled - Beam energy measurement - Harp scan}  \item{Detector checkout with 3/4 trigger, and long run for detector calibration}      \item{BCM calibration}   \item{<math>ep</math> elastic coincidences (Heepcheck), <math>Q^2</math>=9.5 GeV<math>^2</math>, HMS at 5.5394 GeV/c, 23.20 deg, SHMS at 5.9250      GeV/c, 21.61 deg ,expected rate ~ few Hz \@ 65 <math>\mu</math>A current. (at least 4 hrs) }  

}}

{\PineGreen{

\item{<math>Q^2=14.76</math> <math>\rm (GeV/c)^2</math> production, goal: 2000 cnts}

  \item{LH + MT 51 hrs + 17 hrs}  \item{C 122 hrs}  

\item{configuration change 5 hrs} \item{<math>Q^2=12.43</math> <math>\rm (GeV/c)^2</math> production, goal: 2500 cnts}

  \item{LH + MT 12 hrs +  4 hrs}  \item{C 24 hrs}  

\item{configuration change 5 hrs} \item{<math>Q^2=10.02</math> <math>\rm (GeV/c)^2</math> production, goal: 4500 cnts}

  \item{LH + MT 6 hrs + 2 hrs}  \item{C 12.0 hrs}  

\item{<math>Q^2=10.02</math> <math>\rm (GeV/c)^2</math> proton angle scan, goal: 2500 cnts }

  \item{C 12.0 hrs, proton angle scan 1, 2500 cnts}  \item{C 20.0 hrs, proton angle scan 2, 2500 cnts}  

}}