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User name Ramesh Subedi
Log entry time 23:56:27 on December 5,2010
Entry number 342961
keyword=Shift Summary
Kinematics 2, left HRS at 18.781 deg, p=2.962 GeV/c
Beam energy 5.55176 GeV at 5 pass
16:00 Continue running production on liquid deuterium at 1 uA.
16:12 Change target to LH2
16:14 Asking for 1.5 uA beam on LH2
22:00 Beam is down due to injector gun trip, it may take about 15 minutes to recover.
22:10 DVCS calorimeter ioc tripped
22:18 beam back, started run 9283.
Run Summary:
Run 9275 is on Deuterium at 1 uA.
Run 9276 is a pedestal run.
Run end of 9278 was missing.
Run 9284 is an efficiency run but there is a long beam trip during this run, hence stopped. There will be another efficiency run.
All other runs are production runs on LH2 at 1.5 uA
Run Events BCM U3 D3 (C) Time Avg Curr Deadtime
9275 1311 k 0.00364 0.00362 60.3 mins 1.0039 uA 21.52%
9276 4 k 0.00000 0.00000 3.1 mins 0.0149 uA 7.35%
9277 930 k 0.00466 0.00466 63.9 mins 1.2148 uA 16.94%
9279 1083 k 0.00553 0.00550 59.8 mins 1.5365 uA 18.70%
9280 1044 k 0.00533 0.00534 57.5 mins 1.5455 uA 17.07%
9281 1031 k 0.00525 0.00524 60.2 mins 1.4520 uA 16.98%
9282 691 k 0.00350 0.00348 42.0 mins 1.3855 uA 15.88%
9283 953 k 0.00482 0.00480 58.9 mins 1.3611 uA 16.08%