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User name O. Glamazdin
Log entry time 21:45:47 on February 11, 2009
Entry number 260554
keyword=Moller resultsMoller results on Feb 11 15:25-21:10
Mini Spin Dance
- There was no energy lock..
- The raster was ON.
- For the beam energy current - see the chart attached.
| # | Wien angle | beam | runs | target | Ptarget% | Pbeam% |
|---|---|---|---|---|---|---|
| 1 | 30° | 0.8 µA | 13174-13175 | 5 | 8.03 | 81.5±0.2±2.0 |
| 2 | 30° | 0.8 µA | 13176-13179 | 4 | 7.51 | 81.1±0.2±2.0 |
| Aver. | 30° | 0.8 µA | 13174-13179 | 4,5 | - | 81.2±0.1±2.0 |
| 1 | 20° | 0.8 µA | 13180-13181 | 5 | 8.03 | 72.6±0.2±2.0 |
| 2 | 20° | 0.8 µA | 13182-13185 | 4 | 7.51 | 70.5±0.2±2.0 |
| Aver. | 20° | 0.8 µA | 13180-13185 | 4,5 | - | 71.1±0.1±2.0 |
| 1 | 23° | 0.8 µA | 13186-13187 | 5 | 8.03 | 73.2±0.2±2.0 |
| 2 | 23° | 0.8 µA | 13189-13190 | 4 | 7.51 | 73.5±0.2±2.0 |
| Aver. | 23° | 0.8 µA | 13186-13190 | 4,5 | - | 73.3±0.1±2.0 |
Spin Dance Results
The Wien filter angle 23° was choosen as an optimal for the Hall A and the Hall C beam polarization values.Hall A Moller results are presented in the chart attached.
All results are preliminary only and have to be corrected on the beam energy fluctuation.
A copy of this log entry has been emailed to: gen@jlab.org
Figure 1
Figure 2
