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Initial betas: 50 cm
List of Datasets
| ELOG | URL | Comments | Responsible for analysis |
|---|---|---|---|
| /nas/nas-li20-pm00/E320/2024/20240218/E320_05516 | ||
| /nas/nas-li20-pm00/E320/2024/20240218/E320_05517 | ||
| /nas/nas-li20-pm00/E320/2024/20240218/E320_05518 | Alex, analysis done. Results here | |
| /nas/nas-li20-pm00/E320/2024/20240218/E320_05519 | ||
| /nas/nas-li20-pm00/E320/2024/20240218/E320_05520 | ||
| /nas/nas-li20-pm00/E320/2024/20240218/E320_05521 | Forgot Probeline1 before | |
| /nas/nas-li20-pm00/E320/2024/20240218/E320_05522 | ||
| /nas/nas-li20-pm00/E320/2024/20240218/E320_05523 | ||
| /nas/nas-li20-pm00/E320/2024/20240218/E320_05524 | ||
| /nas/nas-li20-pm00/E320/2024/20240218/E320_05525 | ||
| /nas/nas-li20-pm00/E320/2024/20240219/E320_05527 | Laser ON. Waist at FILS | |
| /nas/nas-li20-pm00/E320/2024/20240219/E320_05528 | Repetition Laser ON Waist at FILS Nevertheless no matches Might be a CMOS issue | |
| /nas/nas-li20-pm00/E320/2024/20240219/E320_05529 | Laser OFF Waist at FILS
| |
| /nas/nas-li20-pm00/E320/2024/20240219/E320_05530 | Calibration with main beam and ND2 Inserted Waist at FILS | |
| /nas/nas-li20-pm00/E320/2024/20240219/E320_05532 | Laser ON with waist at PIC_CENT | |
| /nas/nas-li20-pm00/E320/2024/20240219/E320_05533 | Laser ON with waist at PIC_CENT | |
| /nas/nas-li20-pm00/E320/2024/20240219/E320_05535 | Timing scan beta = 50 cm waist at pic_cent | |
| /nas/nas-li20-pm00/E320/2024/20240219/E320_05538 | Timing scan beta = 25 cm waist at pic_cent | |
| /nas/nas-li20-pm00/E320/2024/20240219/E320_05539 | Timing scan beta = 10 cm waist at pic_cent | |
| /nas/nas-li20-pm00/E320/2024/20240219/E320_05540 | Timing scan beta = 5 cm waist at pic_cent | |
Post-beam characterization:
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Bunch length (rms): 200 um
longitudinal data is a bit misleading, bunch length was measured at 3 PM (see http://physics-elog.slac.stanford.edu/facetelog/show.jsp?dir=/2024/08/19.02&pos=2024-02-20T23:50:00)
beta = 50cm:
| Sigma X | 38.1 | 37.7 | 34.0 | 39.1 | 37.2 | 37.0 | 37.1 | 33.3 | 34.2 | 37.8 |
| Sigma Y | 87.9 | 86.2 | 84.8 | 77.3 | 97.0 | 92.6 | 85.8 | 81.5 | 90.6 | 84.8 |
beta = 25cm:
| Sigma X | 31.7 | 29.7 | 32.6 | 28.6 | 32.3 | 35.3 | 32.0 | 28.3 | 31.5 | 33.4 |
| Sigma Y | 71.5 | 81.2 | 79.1 | 79.4 | 75.1 | 74.4 | 79.6 | 72.8 | 77.5 | 84.9 |
beta = 15cm:
| Sigma X | 21.2 | 27.0 | 23.6 | 23.8 | 25.9 | 24.4 | 22.6 | 22.7 | 20.5 | 24.7 |
| Sigma Y | 56.7 | 62.2 | 70.4 | 58.4 | 52.0 | 61.5 | 57.9 | 66.9 | 75.8 | 66.6 |
beta = 5cm:
| Sigma X | 26.0 | 28.6 | 26.3 | 28.5 | 28.4 | 29.3 | 27.6 | 26.0 | 23.8 | 28.6 |
| Sigma Y | 59.2 | 37.3 | 52.7 | 58.2 | 78.3 | 53.5 | 36.4 | 75.0 | 53.9 | 62.6 |
Focal scan
We have a very non-ideal laser focus (see elog)
peak intensity during the z-scan looked okish
outside the focal plane the spot becomes messy
after optimizing with the beam shaper
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