| How to switch off the chicane for a foreseen shutdown or maintenance days ? |
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This procedure is only performed by MCC operators.
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First of all,
the Hall A Run Coordinator must request that
MCC tune the beam through the Compton chicane.
For a foreseen shutdown or maintenance days, you do not need this step.
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MCC operators have to apply the section 3 of
the procedure MCC-PR-04-001. Let's remind to the operator
to close valves located on the Compton line. It is very important
to keep the best vacuum in the Compton line and avoid
dust deposit on the high reflectivity mirrors of the cavity
The complete procedure is available on our web site at :
http://hallaweb.jlab.org/compton/Documentation/Procedures/compton_off.frm.ps
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