Log entry time 07:49:02 on February 11, 2009

Entry number 260461

Owl Shift Summary Feb 11, 2009

00:00 BCM calibration run is in progress.
      Q3 oscillating : 0.867~0.87015(set value)~0.8735 GeV
01:15 Give up BCM calibration due to lack of time
01:35 Check beam with optics/BeO and ref. cell.
01:50 Start BB optics with Xin, 15uA, 4x6 rastered by MCC unit.
03:00 Ask for controlled access, Brad is coming in to put BB sieve OUT.
03:10 Controlled access
03:25 Controlled access end, BB SIEVE IS OUT.
03:40 Q2/Q3 cycled to ramp up, but just got back to original setting.
04:00 Take two runs of optics target with 5uA beam,
      1286 with raster on (4x7 MCC) and
      1288 with raster off 
04:40 Back to H2 ref cell and taking BB optics runs
05:00 Take data for tracking efficiency study
07:00 Ask for controlled access as planned. Target move to empty.
07:10 Set L-HRS magnet fields to 0 to prepare polarity change.
07:45 Under controlled access.

Run List
-BB optics with H2 reference cell
Run  Time        #Events Comment
1281 02:01-02:24 1M      15uA, raster 4x6 MCC
1282 02:25-02:47 1M      15uA
1283 02:47-03:05 1M      15uA
1289 04:45-05:12 1.5M    15uA
1291 05:27-05:54 1M      12uA
1292 05:56-06:21 1M      8uA
1293 06:22-06:42 550k    4uA, BB HV trip
1294 06:47-07:03 780k    2uA, controlled access
-BB optics with multi carbon foil w/ BeO target
Run  Time        #Events Comment
1286 04:21-04:26 1M      raster on 4x7 MCC, 5uA
1288 04:05-04:14 1M      raster off, 5uA