Make New Entry, Make Followup Entry
User name O. Glamazdin
Log entry time 14:07:33 on November 07, 2009
Entry number 298080
This entry is a followup to: 297889
Followups:
keyword=Energy fluctuation correction for Moller resultsCorrected Moller results on November 06
- The beam energy (Tiefenback) was 6067.45MeV
- There was no an energy lock for runs 13831-13847 and runs 13855-13858.
- The beam energy fluctuation for these runs was in range 6067.0-6067.8MeV (HALLA:p).
- There was an energy lock in ARC2 for runs 13848-13851 and the beam energy reading (HALLA:p) was 6064.5MeV. I don't understand what does it mean.
- Beam energy correction was done for all runs. Results are presented below.
- Results for runs 13848-13851 should be excluded from analysis and situation with the energy lock in ARC2 should be checked.
- For Monday spin dance we MUST have the energy lock in Hall C BSY.
| # | Wien angle | beam | runs | target | Ptarget% | Pbeam% | comments |
|---|---|---|---|---|---|---|---|
| 1 | 74.73° | 0.7 µA | 13831-13835 | 5 | 8.01 | 88.20±0.2±2.0 | |
| 2 | 74.73° | 0.7 µA | 13836-13839 | 4 | 7.51 | 86.79±0.2±2.0 | |
| 3 | 74.73° | 0.5 µA | 13840-13843 | 3 | 7.56 | 86.95±0.2±2.0 | |
| 4 | 74.73° | 0.3 µA | 13844-13847 | 2 | 8.24 | 87.63±0.2±2.0 | |
| 5 | 74.73° | 1.1 µA | 13848-13851 | 5 | 8.01 | 89.53±0.2±2.0 | |
| 6 | 74.73° | 1.1 µA | 13855-13858 | 4 | 7.51 | 86.44±0.2±2.0 | |
| Aver 1-2 | 74.73° | - | - | - | - | 87.49±0.2±2.0 | Targets 4-5 |
| Aver 1-4 | 74.73° | - | - | - | - | 87.42±0.1±2.0 | Targets 2-5 |
A copy of this log entry has been emailed to: gen@jlab.org, doug@jlab.org
Figure 1
