\documentclass{chowto}

\title{How to set the SOS magnets}
\howtotype{user} % ``expert'', ``user'', ``reference''
%\experiment{Name of experiment} % Optional
\author{Nadia Fomin}
\category{magnet} % Subject area of this document
%\maintainer{Name of person maintaining document} % Optional
\date{\today} % Can use \today as the argument

\begin{document}

\begin{abstract}
This will describe how to set the SOS magnets by momentum.
\end{abstract}

\section{Getting Started}
First, you will need the SOS magnet controls.  From a terminal, type
"telnet vmec19" and use "cvxwrks" as the login and the password can be
found written somewhere around the slow controls computer.  Once you
log in, type "SOS" and press "ENTER".  A menu should appear. Now,
you're ready to set the magnets

\section{Degaussing}
You should degauss the magnets if you're changing the polarity or if
the "degauss needed" fields say "yes."  To degauss the magnets, select
either "degauss(electrons)", item 13 on the menu, if you want negative
polarity or "degauss(protons)", item 12 on the menu, if you want
positive polarity.  The magnet status field will indicate when the
degaussing process is complete.

\section{Setting the Magnets}
Magnets will be turned on one at a time, but the order is not
important.  First, choose "select power supply", item 1 on the menu.
Choose 1, 2 or 3 and press enter.  Next, select "turn power supply
on", item 2 on the menu, This will turn on the magnet you just
selected.  Repeat for the other magnets.  To select positive polarity,
select option 5 from the menu, or option 6 for negative polarity.  If
this happens too soon after the power supplies are turned on, you will
receive a message instructing you to wait some number of seconds.
Once they're all on, select "set by momentum", item 9 on the menu, and
enter the appropriate momentum.  Make sure to include the minus sign
if you're setting the magnets to negative polarity. You will see the
magnets ramping in the status field.

\end{document}

% Revision history:
% $Log: set_sos_magnets.tex,v $
% Revision 1.1  2004/09/18 19:35:08  saw
% Initial version
%
% Revision 1.1  2003/03/07 21:50:38  saw
% Initial Checkin
%
