Log entry time 17:42:25 on February 21, 2009

Entry number 262525

This entry is a followup to: 261625

Followups:

• 262534 02/21/09 19:27 V. Sulkosky Experiment Summary for Feb 17, Day - Feb 18, Day

Summary for Feb 20 owl - Feb 21 owl

Smooth data taking.

Beam in Use

shift	ABU	BANU	BNA
2009/02/20 owl	7.27	0.28	0.45
2009/02/20 day	5.52	1.69	0.8
2009/02/20 swing	6.33	1.00	0.68
2009/02/21 owl	6.79	0.29	0.94
total	25.9	3.2	2.9

Main events/issues:

• Transverse Production
• Feb. 20, 08:50 Completed kinematic J: P_lhrs = 1.42 GeV/c, 45^o.
• Feb. 20, 08:55 Start kinematic H: P_lhrs = 1.42 GeV/c, 45^o.
• Feb. 20, 13:30-14:30 Controlled access to fix network slow down.
• Feb. 20, 15:00 Resume production on kinematic H.
• Feb. 20, 19:05 Change target spin direction to 90 degrees.
• Average target polarization: ~ 62.5% from owl shift 2/20 through owl shift 2/21.
• Total accummulated charge for kinematic J: 1.24 C out of 1.30 C.
• Total accummulated charge for kinematic H: 0.77 C out of 1.08 C.
• Issue: BigBite DAQ sees deadtime burps where the DAQ stops for about 1-2 seconds.

Plans for the next day:

• Complete kinematic H: P_lhrs = 1.42 GeV/c.
• Begin kinematic F: P_lhrs = 1.13 GeV/c.