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User name gaskell
Log entry time 10:11:11 on October 24, 2010
Entry number 336462
keyword=Hall C energy modulation
As part of the usual parity checks, Hall C will be modulating the beam
energy periodically to help measure their sensitivity to helicity
correlated beam energy shifts. When Josh Hoskins told me they would be
testing the system last night I learned the following:
1. Hall C plans to modulate the beam energy at the 1 keV level. This
should be negligible.
2. Typically, we should get some signals that tell us the energy lock is
off, and that modulation will be starting. I don't think these signals
are hooked up yet. I will check with Paul King to see if he knows how
they should get to Hall A.
A copy of this log entry has been emailed to: pking@jlab.org,munoz@jlab.org,camsonne@jlab.org.jroche@jlab.org,hyde@jlab.org