| 1600 | 1700 | 1800 | 1900 | 2000 | 2100 | 2200 | 2300 | Total Time | |
|---|---|---|---|---|---|---|---|---|---|
| Acceptable Beam in Use | 0.00 | 0.00 | 0.00 | 0.29 | 0.72 | 0.75 | 0.76 | 0.68 | 3.20 |
| Beam Available but Not in Use | 0.17 | 0.00 | 0.43 | 0.57 | 0.06 | 0.08 | 0.08 | 0.02 | 1.40 |
| Beam Not Available or Unacceptable | 0.83 | 1.00 | 0.57 | 0.15 | 0.22 | 0.17 | 0.16 | 0.30 | 3.39 |
| Accelerator Con- figuration Change | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Experiment Ready | 0.83 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 7.83 |
| Planned Config- uration Change | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Unplanned Experiment Down | 0.17 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 |
| Hall not ready reasons | |||||||||
| Target | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Data Acq | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Other | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| HRSL | 0.17 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 |
| HRSR | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| HALL_OFF | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
Comments: Beam off at start of shift - data taking began at ~19:30. Beam down due to magnet problem in accelerator around 22:00. Beam after that had similar or higher trip rate, but long recover times due to a problem cavity. We asked if running at lower current would help, the were told that it would probably not have any effect. Lost beam due to injector problems Data taking on 4He: Runs 2907-2916
Data Entry by: J. Arrington