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User name Yoomin
Log entry time 08:07:05 on April 22, 2012
Entry number 377400
keyword=Owl Shift Summary
Workers
Yoomin Oh(SL), Paul Reimer(TO), Herun Yang(3rd)
Summary
00:00 Shift starts, positioning beam and target.
00:30 No beam, MCC working on one of the cavities to make the energy stable.
01:20 Beam back, waiting it stablized.
02:10 Beam energy stable in a good position.
Position locked,
move on to production.
Target polarization
in process.
02:45 Starts production, TO optimizing the target polarization, 40% now.
05:50 There has been no beam for 20 minutes. Now comes back.
07:20 HWP Flip from IN to OUT. For 1.0171 GeV, we've reach the number we need. But,
08:00 Two more hours will be spent for this kinematics due to late HWP flip.
Over.
Production Run List
- P0 = 1.0171 GeV, NH3 Top, 66.5 M subtotal events
from previous.
4818 / 23708 : 7M / 7M (80.5M)
4819 / 23709 : 7M / 7M (94.5M)
4820 / 23710 : 7M / 6.7M (108.2M), unstable beam
4821 / 23711 : 7M / 6.7M (121.9M)
4822 / 23712 : 7M / 6.7M (135.6M)
4823 / 23713 : 7M / 6.6M (149.2M)
4824 / 23714 : 7M / 6.7M (162.9M)
4825 / 23715 : 2.8M / 2.6M (168.3M), no beam for 15 minutes at the end.
4826 / 23716 : 7M / 6.7M (182.0M)
4827 / 23717 : 7M / 6.7M (195.7M)
4828 / 23718 : 7M / 6.8M (209.5M)
4829 / 23719 : 7M / 6.6M (223.1M)
4830 / 23720 : 5.2M / 4.9M (233.2M), Stopped to flip HWP.
4831 / 23721 : 7M / 6.6 M (246.8M), HWP OUT from here.
4832 / 23722 : 7M / 6.7 M (260.5M)