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User name O. Glamazdin
Log entry time 20:53:04 on November 30, 2009
Entry number 303792
keyword=Moller resultsMoller results on November 30 18:15 - 20:40
- Crew: O.Glamazdin
- Wien filter angle is 74.73°
- The raster was ON. The half wave plate was OUT.
- Beam tuning took 30 min! Thanks to MCC!
- Beam current was 1uAmp to use ARC2 energy lock. Due to that the beam polarization was measured with targets 4 and 5 only.
- Beam energy for Moller measurements was about 6066.2MeV (see strip chart). Spin precession correction has to be done.
| # | Wien angle | beam | runs | target | Ptarget% | Pbeam% | comments |
|---|---|---|---|---|---|---|---|
| 1 | 74.73° | 1.0 µA | 13930-13935 | 5 | 8.02 | 88.14±0.2±2.0 | Slit=15.7 Att=190 |
| 2 | 74.73° | 1.0 µA | 13936-13941 | 4 | 7.51 | 87.00±0.2±2.0 | |
| 3 | 74.73° | 1.0 µA | 13942-13945 | 4 | 7.51 | 89.22±0.2±2.0 | Levchuk |
| Aver 1-2 | 74.73° | - | - | - | - | 87.62±0.1±2.0 | Targets 4-5 |
A copy of this log entry has been emailed to: gen@jlab.org, saha@jlab.,org, brads@jlab.org, doug@jlab.org
Figure 1
Figure 2 Strip Chart for Moller measurements
Figure 3 Beam Energy for Moller measurements
