[Mott] Mott last 24 hours and next 24 hours until end of commissioning run

[Joseph Grames]

Mott work summary for last 24 hours is shown below. For those off-site you can access electronic logbook (https://logbooks.jlab.org) with your JLAB username and password to view all entries, pictures, plots, etc.

Last 24 hours (Mon SWING=Marcy, Tue OWL=cancelled)
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1. Last night recovered KE=5.0MeV and vertical polarization, checked OK with 1um gold.
2. Quick survey of 4 silver foils to determine rate, effective AP, run times for the shifts
3. Small down due to cryo issue in SRF cavities
4. Lost control of Mott target motion.  Wes called to fix controls/homing, but not the issue. Tracked down in tunnel to mechanical problem with gears.  Not able to move/control target remotely or be sure of position.  Deferred repair so cancelled remainder of SWING and OWL shift.

Next 24 hours (Tue SWING=Marty, Wed OWL=David)
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1. Repair target ladder, demonstrate homing
2. Early start-up at 3pm
3. Recover KE=5.0MeV and vertical polarization, check OK on 1um gold
4. ~10 hours on four Ag foils (run conditions already determined)
5. Remainder of shift on 1um Au (no wave plate changes) to assess stability