Moller measurement results

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User name Jixie

Log entry time 15:48:27 on May 04, 2012

Entry number 382205

keyword=Moller measurement results

Moller results on May 04 09:20 - 15:00

Crew: Jixie
Wien filter angle is 90.0 -91.947, (-60.85, -75, -20, 20, -60.20)°
The raster was OFF. The half wave plate was OUT for runs 15382-15417 and IN for runs 15418-15434
Beam tuning took ~1.5 hour.
Runs 15382-15417 - spin dance (wien angle=-60.85, -75, -20, 20) (Target 2)
Runs 15419-15430 - beam polarization measurement at wien angle -60.2 (Target 2)
Runs 15431-15434 - bleed-through measurement Hall A laser OFF, slit is -1.0

Preliminary results
#	Wien angle	beam	runs	target	P_beam%	comments
1	-60.85°	0.1 µA	15382-15387	2	-83.29±0.57	IHWP=OUT, PAS=OUT
2	-60.85°	0.1 µA	15388-15393	2	-81.70±0.59	IHWP=OUT, PAS=IN
3	-60.85°	0.1 µA	15382-15393	2	-82.52±0.41	IHWP=OUT, PAS=IN
4	-75.00°	0.1 µA	15394-15401	2	-86.01±0.55	IHWP=OUT, PAS=IN
5	-20.00°	0.1 µA	15402-15408	2	-43.61±0.51	IHWP=OUT, PAS=IN
6	+20.00°	0.1 µA	15409-15417	2	+17.06±0.52	IHWP=OUT, PAS=IN
7	-60.20°	0.1 µA	15419-15430	2	-79.98±0.45	IHWP=IN, PAS=OUT
8	-70°	Hall A at 0 Hall C at 4.4 µA	15431-15434	2	XX±XX	Hall A laser OFF,Slit=-1 IHWP=IN, PAS=OUT, To be analyzed

A copy of this log entry has been emailed to: gen@jlab.org, glamazdi@jlab.org, romanip@jlab.org

Figure 1: Spin dance

Figure 2: Beam polarization at Wien angle -60.85

Figure 3: Beam polarization at Wien angle -60.20