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Experiment data
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OPERATION-2023 logbook, Contact: F.Wolff-Fabris, A.Galler, L.Samoylova, H.Sinn |
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Message ID: 415
Entry time: 25 Oct 2023, 15:18
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Author: |
Sergii, Teguh |
Group: |
SCS |
Subject: |
Morning Shift Summary, 25.10.2023 |
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Morning Shift Summary, 25.10.2023
Achievements:
- Re-aligned FEL beam pointing and beamline mirrors after XGM intensity drop due to slow beam pointing drift over night.
- Continued taking momentum-dependent tr-REXS data.
Problems:
- There was slow drift of FEL beam pointing over night, causing XGM intensity to slowly drop over time.
- The slow drop of XGM intensity continues even after beamline alignment. Compared to morning, the XGM intensity has dropped by ~10%.
- It is advisable to re-check the beam pointing again some time before the night shift due to correct for this beam drift problem.
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