Log entry time 07:59:04 on February15,2007

Entry number 193367

0:30  Requested controlled access to insert pin for LHRS small angle limit after moving to 14.046 deg for Kinematic 'X'.



1:12  Started runs 6407/26384



1:24  Noticed VDC inefficiency was approaching 10% at the elastic peak.  Requested the beam current to be dropped to 0.3 microAmps for the next run.  Found 0.4 microAmps is the minimum to get a readback from the BPMs and will run with it.



2:08  Switched to B4C target.



2:50  Switched to Carbon target.



3:30  Switched to Ta target, and raised current to 1 microamp to be consistent with the Carbon data.  Next run will be at 0.4 microamp to provide data to compare and understand the VDC/tracking efficiency.  (Dedicated data for this purpose might be called for later)



4:00  DAQ stopped collecting data for the LHRS.  Rebooted ROCs/TS and restarted coda.



6:30  Started moving to 46deg for kinematic F.



7:05  Starting kinematic F points.



7:30  Found raster patterns to be 1mm by 3mm (see halog entry).  Moved to empty target to try to improve raster shape.  Runs 6423-6425 were used to test the raster size.



7:55  Alexandre was kind and took over for me for the last few minutes.  Thanks!.

Run Summary


Runs         Kin   Target   Start   Comment

6407/26384    X       Li    1:07      0.5 microamp

6408/26385    X       Li    1:31      0.4 microamp

6409/26386    X       Li    1:47      0.4 microamp

6410/26387    X       B4C   2:11      0.4 microamp

6411/26388    X       B4C   2:28      0.4 microamp

6412/26389    X       C     2:51      0.4 microamp

6413/26390    X       C     3:08      0.4 microamp

6414/26391    X       Ta    3:40      1.0 microamp

6417/26394    X       Ta    4:20      0.4 microamp

6418/26395    X       Ta    4:50      0.19 microamp

6419/26397    X       C     5:16      0.19 microamp

6421/26399    X       B4C   5:49      0.19 microamp

6422/26400    X       Li    6:12      0.19 microamp



6426/26404    F       Li    7:52      4, then 3 microamp