Performance Metrics: User Time for FY21
The beam parameters in these summaries, when present, are obtained automatically from the accelerator control system. They have not been vetted and particularly during this commissioning period, treat with caution.
Experiment: E305 - Beam filamentation and bright gamma-ray bursts Shift Start: 2021-08-13 13:00:00 | |||
| Requested Beam Time (hours): | 15.0 | Charge delivered in S20 (E10 electrons/bunch): | Not Available |
| Useful Beam Time (hours): | 13.0 | Horizontal beam size in S20 (rms, microns): | 46.0 |
| Unscheduled Accelerator Downtime (hours): | 1.0 | Vertical beam size in S20 (rms, microns): | 23.08 |
| Unscheduled User Downtime (hours): | 1.0 | Bunch length (rms, microns): | 23.64 |
| Total delivered+downtime+user off (hours): | 15.0 | | |
Brief Summary: We got a lot of useful data that will help us characterize the the E305 diagnostics! | |||
Experiment: E320 - Probing Strong-field QED at FACET-II Shift Start: 2021-08-13 16:00:00 | |||
| Requested Beam Time (hours): | 14.0 | Charge delivered in S20 (E10 electrons/bunch): | Not Available |
| Useful Beam Time (hours): | 12.0 | Horizontal beam size in S20 (rms, microns): | 46.0 |
| Unscheduled Accelerator Downtime (hours): | 1.0 | Vertical beam size in S20 (rms, microns): | 23.08 |
| Unscheduled User Downtime (hours): | 1.0 | Bunch length (rms, microns): | 23.64 |
| Total delivered+downtime+user off (hours): | 14.0 | | |
Brief Summary: Concluded calorimeter/PMT and EDC screen checkout. Performed detailed background measurements for the PMTs. | |||
Experiment: E305 - Beam filamentation and bright gamma-ray bursts Shift Start: 2021-08-12 16:00:01 | |||
| Requested Beam Time (hours): | 12.0 | Charge delivered in S20 (E10 electrons/bunch): | Not Available |
| Useful Beam Time (hours): | 3.0 | Horizontal beam size in S20 (rms, microns): | 46.0 |
| Unscheduled Accelerator Downtime (hours): | 11.0 | Vertical beam size in S20 (rms, microns): | 23.08 |
| Unscheduled User Downtime (hours): | 0.0 | Bunch length (rms, microns): | 23.64 |
| Total delivered+downtime+user off (hours): | 14.0 | | |
Brief Summary: Beam was recovered at around 3am and provided a few hours of very useful beamtime. Goal of scanning the | |||
Experiment: E305 - Beam filamentation and bright gamma-ray bursts Shift Start: 2021-08-12 16:00:01 | |||
| Requested Beam Time (hours): | 9.0 | Charge delivered in S20 (E10 electrons/bunch): | Not Available |
| Useful Beam Time (hours): | 0.0 | Horizontal beam size in S20 (rms, microns): | Not Available |
| Unscheduled Accelerator Downtime (hours): | 8.5 | Vertical beam size in S20 (rms, microns): | Not Available |
| Unscheduled User Downtime (hours): | 0.0 | Bunch length (rms, microns): | Not Available |
| Total delivered+downtime+user off (hours): | 8.5 | | |
Brief Summary: No beam delivered. Tested software for data acquisition and on the fly data analysis. | |||
Experiment: E305 - Beam filamentation and bright gamma-ray bursts Shift Start: 2021-08-12 00:00:00 | |||
| Requested Beam Time (hours): | 2.0 | Charge delivered in S20 (E10 electrons/bunch): | Not Available |
| Useful Beam Time (hours): | 2.0 | Horizontal beam size in S20 (rms, microns): | 46.0 |
| Unscheduled Accelerator Downtime (hours): | 0.0 | Vertical beam size in S20 (rms, microns): | 23.08 |
| Unscheduled User Downtime (hours): | 0.0 | Bunch length (rms, microns): | 23.64 |
| Total delivered+downtime+user off (hours): | 2.0 | | |
Brief Summary: We got more data. | |||
Experiment: E305 - Beam filamentation and bright gamma-ray bursts Shift Start: 2021-08-11 16:00:00 | |||
| Requested Beam Time (hours): | 8.0 | Charge delivered in S20 (E10 electrons/bunch): | Not Available |
| Useful Beam Time (hours): | 0.5 | Horizontal beam size in S20 (rms, microns): | Not Available |
| Unscheduled Accelerator Downtime (hours): | 7.5 | Vertical beam size in S20 (rms, microns): | Not Available |
| Unscheduled User Downtime (hours): | 0.0 | Bunch length (rms, microns): | Not Available |
| Total delivered+downtime+user off (hours): | 8.0 | | |
Brief Summary: Despite not getting beam to dump for very long, this was a very productive shift. | |||
Experiment: E326 - Non-Intercepting Diagnostics for High Intensity Beams and Computer Control Shift Start: 2021-07-23 16:00:00 | |||
| Requested Beam Time (hours): | 6.0 | Charge delivered in S20 (E10 electrons/bunch): | Not Available |
| Useful Beam Time (hours): | 6.0 | Horizontal beam size in S20 (rms, microns): | 46.0 |
| Unscheduled Accelerator Downtime (hours): | 0.0 | Vertical beam size in S20 (rms, microns): | 23.08 |
| Unscheduled User Downtime (hours): | 0.0 | Bunch length (rms, microns): | 23.64 |
| Total delivered+downtime+user off (hours): | 6.0 | | |
Brief Summary: On this shift the E326 experiment tested out experimental and machine settings by examining the change in edge radiation stripe width as a | |||
Experiment: E326 - Non-Intercepting Diagnostics for High Intensity Beams and Computer Control Shift Start: 2021-06-26 16:00:00 | |||
| Requested Beam Time (hours): | 3.5 | Charge delivered in S20 (E10 electrons/bunch): | Not Available |
| Useful Beam Time (hours): | 3.5 | Horizontal beam size in S20 (rms, microns): | 46.0 |
| Unscheduled Accelerator Downtime (hours): | 0.0 | Vertical beam size in S20 (rms, microns): | 23.08 |
| Unscheduled User Downtime (hours): | 0.0 | Bunch length (rms, microns): | 23.64 |
| Total delivered+downtime+user off (hours): | 3.5 | | |
Brief Summary: The goal for this shift was to perform a preliminary checkout of the E326 dogleg magnetic and visible optics. | |||
