Several people have asked "what are the sweepers" in response to my
note this morning. The sweeper magnets are located just downstream of
the primary collimator. They consist of a pair of dipoles which are
used to sweep charged debris from the photon beam. We have not used
the sweepers at all during the commissioning phase....
Arne
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Arne Freyberger
JLAB (Mail Stop 12H) Phone: (757) 269-6268
12000 Jefferson Avenue Pager: (757) 680-8884 freyberg@cebaf.gov
Newport News, VA 23606 Phax: (757) 269-5800 http://www.cebaf.gov/~freyberg