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User name V. Sulkosky
Log entry time 08:04:25 on May 17, 2009
Entry number 274100
keyword=Owl Shift Summary, May 17, 2009
May 17, 2009
SL: V. Sulkosky
TO: D. Parno
3rd: W. Luo
Owl Shift Summary:
+++++++++++++++++++++++++++++++++++++++++
00:00 Begin shift with no beam.
02:55 Move to target to empty position.
03:10 Beam back, begin beam checkout procedure.
03:10 Turned off HAND HVs for beam tuning.
03:32 Beam profile looks good from Harp scans:
A: 111 x
162 microns
B: 151 x
171 microns
03:34 Move to Optics target to check raster.
03:41 Move to polarized 3He target and ask for 3x2 raster size.
03:48 Ask for 6 x 6 raster size (10 x 8 MCC units).
03:53 Ask for 4 x 4 raster size (7 x 5 MCC units).
03:57 Resume Production on 3He at 10 uA.
04:05 Restored HAND HVs.
04:07 First production runs with HAND on.
05:43 Change left HRS momentum setting to 2.277 GeV/c.
06:43 Noticed that left HRS stopped counting at 1.5 M events during run
2347.
07:16 Restart happex, new run number is 31385.
07:45 NMR measurement: 63.0%
Left Run Summary:
Start Run Events Comments
===============================================================================
23:35 2337 207 k No beam, cosmics
02:49 2338 842 k Cosmics, beam near the end
03:37 2339 335 k Raster Check on BeO (4 x 4)
03:46 2340 88.5 k Raster Check on 3He (2 x 2)
03:51 2341 82 k Raster Check on 3He (6 x 6)
03:58 2342 1.4 M Production on 3He
04:08 2343 5.0 M Production on 3He
04:39 2344 5.0 M Production on 3He
05:11 2345 5.0 M Production on 3He
05:54 2346 5.0 M Production on 3He, P0 = 2.277 GeV/c
06:21 2347 1.5 M Production on 3He, CODA Stopped counting
06:47 2348 5.0 M Production on 3He
07:16 2349 5.0 M Production on 3He
07:46 2350 ?? M Production on 3He, continued into Day
shift
Right Run Summary:
Start Run Events Comments
===============================================================================
23:34 21243 293 k No beam, cosmics
02:48 21244 954 k Cosmics, beam near the end
03:50 21245 75 k Raster Check on 3He (6 x 6)
03:57 21246 1.27 M Production on 3He, HAND HV's off
04:07 21247 4.52 M Production on 3He, HAND HV's on
04:39 21248 4.52 M Production on 3He
05:11 21249 4.53 M Production on 3He
05:53 21250 4.1 M Production on 3He, P0 = 2.277 GeV/c
06:21 21251 3.7 M Production on 3He, P0 = 2.277 GeV/c
06:46 21252 4.09 M Production on 3He, P0 = 2.277 GeV/c
07:16 21253 4.09 M Production on 3He
07:45 21254 ?? M Production on 3He, continued into Day
shift