Log entry time 16:01:58 on October13,2005

Entry number 156745

keyword=Day Shift Summary

Shift Summary: Day Shift October 13 2005

HAPPEX-II hydrogen

Shift Leader/Target: D.S. Armstrong
Target: R. Gilman
3rd: J. LeRose

At start of shift: Kent is here as well; just at start of shift we get 5 µA of beam, back to nominal beam positions.
We have target full, but in empty position. Take a HAPPEX DAQ run to
look at phase advance and dithering. We are running at the moment
with the Hall B laser, as the Hall A laser will not lock, and EGG needs to do an access to fix that today.

8:30 We check the phase advance with 5 µA beam.
Looks good in x,y - Kent pronounces it fine after pumping up the amplitude in one coil. Now MCC takes beam to allow Matt Poelker to fix the Hall A laser.

Pedestal/cosmic runs underway while we wait.

10:00 Elog says Matt has fixed the Hall A laser, and it is now
locked. Now they are going to the "energy conservation" test plan (in
which the higher-pass arc magnet power supplies are turned off). Matt will also be resetting the Wein filter/precession solenoid magnet to zero-out the vertical polarization.

16:00 Still waiting for beam... Hand off to next shift...

HAPPEX Runs Taken



   Run     Pairs      Comment



   5588    45 K     beam study - phase advance check

   5589    100 K    Cosmics/Pedestals

   5590    100 K    Cosmics/Pedestals

   5591    100 K    Cosmics/Pedestals

   5592    100 K    Cosmics/Pedestals

   5593    100 K    Cosmics/Pedestals

   5594    100 K    Cosmics/Pedestals

   5595    100 K    Cosmics/Pedestals

   5596    100 K    Cosmics/Pedestals

   5597    100 K    Cosmics/Pedestals

User name Armstrong

Log entry time 16:01:58 on October13,2005

Entry number 156745

Shift Summary: Day Shift October 13 2005