Saturday, May 9, 2009

	ABU	BANU	BNA
Owl	6.21	1.22	0.58
Day	2.38	2.03	3.59
Swing	4.04	1.39	2.55
Total	14.69	2.35	6.93

·         00:00 – 00:30 Compton chicane tuning

·         00:30 – 01:00 Establish beam and quality check

·         01:00 – 09:00 Production with 2-pass beam: 5.5uA

·         09:00 – 09:45 DAQ crash after the attempts of turning on BigBite scintillator and wire chamber HV. Turned them off and the problem is gone.

·         09:45 – 10:30 Production with 2-pass beam: 5.5uA

·         10:30 – 11:00 DAQ problem, caused by a logging onto a incorrect machine. Ask MCC to tune the beam position while solving DAQ problem

·         11:00 MCC raster screw up happened! Extreme large raster caused the beam hitting the wall of 3He cell. Excessive radiation tripped neutron detector and possibly R-HRS VDC HV.

·         11:00 R-HRS VDC bottom chamber HV tripped, searching for experts to fix it while Jack is on vacation.

·         11:00 – 11:55 Establish beam and quality check

·         11:55 – 15:15 Production with 2-pass beam: 5.5uA and without R-HRC VDC#1

·         15:15 – 15:50 BigBite scintillator and wire chamber test

·         15:50 – 18:30 Controlled access: Fix R-HRS VDC#1 HV by switching to local mode and it is only a tempera work around!

·         18:30 – 19:15 Establish beam and quality check

·         19:15 – 24:00 Production with 2-pass beam: 5.5uA