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User name X. Zheng
Log entry time 16:11:08 on March 08, 2012
Entry number 364662
keyword=Day shift summary
08:00 Left HRS is coming back to 2.251 GeV/c;
08:10 Left HRS momentum is set;
08:15 Escorted controlled access, Jixie is inserting the sieve slits to
08:36 End of access but MCC is having problems to deliver the beam;
09:05 Septum current is ramped to 725.40 Amp;
09:50 MCC is ready to send beam. Target experts will do the target
position calibration first with the "empty hole" aluminum target.
09:58 50nA, fast raster 2x2, slow raster 1.4V
10:22 Beam is down again and Hall C is using this time to change their HWP;
12:57 beam is back! We continue with the target position calibration.
Fast raster is OFF now and slow raster is ON;
14:55 We finished all target position calibration and we are now starting
optics. It took a while both for us to convey the correct beam nominal
position to the MCC, and for the MCC to get to these requested positions
BPMAX: -0.3 (H05AX)
BPMAY: -1.4 (H05AY)
BPMBX: -1.1 (H05BX)
BPMBY: -2.7 (H05BY)
15:30 MCC called and said they will take the beam away again for 15
minutes to add a patch to the gun.
15:55 Beam off for the gun patch, end runs, LHe are not fully drained yet.
Run list for checking target position using the "empty hole" target.
50nA, fast raster 2x2, slow raster 1.4V:
Optics Run list:
With LHe, Pointing, Sieve in, 40mil C12 target:
2919, 2920, 2921, 2922
22015, 22016, 22017, 22018
Draining LHe, Pointing, Sieve in, 40mil C12 target:
(LHe was not fully drained at the end of run due to MCC test)