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2) Timeslot control and FACET - it is known that when FACET is running there will be a ~30Hz disturbance on the beam.
In order to correct for this in feedback, the feedbacks will need to know which timeslot FACET is running on. If FACET and LCLS share an EVG, or if we can get that FACET timeslot information to LCLS, then the feedback algorithm can work with it. Additionally, the 120Hz feedback algorithms may need to change significantly (to a base + difference type of algorithm) when FACET is on. It is projected that FACET will begin operating sometime in 2011 - It was decided we did not have to deal with these issues immediately, but plan for it with FACET. We should make it a goal to develop a good test environment so that we can test new algorithms after January 2010, to prepare for FACET.
3) RF control and longitudinal feedback
we - we need to develop a transition path for upgrading Joe's RF control so that it works cleanly with higher level applications like the longitudinal feedback, phase scans, energy_change, etc.