M3 calibration, posted by Kelin Tasca on 10 Apr 2024, 17:03 
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- M3 TX moved to 0 in steps of 1 mm and beam on FXE Pop-In corrected with M3 RY (+) and M2 RY
- Started calibration with M3 Rz in steps of 0.5 (+) and corrected with M2 RY and RZ to find a position with a minimum of parasitic motion
- Iterations with M3 TY |
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start of shift - status, posted by Antje Trapp on 10 Apr 2024, 16:35
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Starting shift with mirror motor calibration:
- beam is centered on FEL imager
- pblm in XTD9 is inserted |
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start of shift - status, posted by Antje Trapp on 10 Apr 2024, 16:35
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Starting shift with mirror motor calibration:
- found solid attenuator 0.5mm silicon inserted
- beam is centered on FEL imager |
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Status, posted by Harald Sinn on 10 Apr 2024, 11:55
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Yesterday two motors of the SASE2 seeding mono were damaged. The mono was exchanged in the afternoon and pumped down. Currently, an issue with the vertical
cystal motion is being investigated. The vacuum improved much faster than expected after this intervention, so the hope is that the tunnel can
be searched soon and electrons could go through SASE2 already this afternoon. Watch for updates in the program for SASE2 in the DESY logbook under |
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Shift end, posted by Marcin Sikorski on 08 Apr 2024, 06:37
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In-house/commissioning beam time summary night 5
X-ray delivery:
12.7 keV, up to 128 pulses at 0.5MHz, ~1.3 mJ, one very short beam down. |
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Shift summary, posted by Raphael de Wijn on 07 Apr 2024, 07:04
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In-house/commissioning beam time summary night 4
X-ray delivery:
12.7 keV, up to 128 pulses at 0.5MHz, ~1.3 mJ, one very short beam down. |
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Shift summary, posted by Raphael de Wijn on 06 Apr 2024, 07:06
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Staff: MS, RB, PS, RdW
In-house/commissioning beam time summary night 3
X-ray delivery: |
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Shift summary, posted by Raphael de Wijn on 05 Apr 2024, 07:14
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In-house/commissioning beam time summary night 2
X-ray delivery:
12.7 keV, up to 288 pulses at 1.1MHz, ~1.2 mJ |
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Shift summary, posted by Raphael de Wijn on 04 Apr 2024, 06:48
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In-house/commissioning beam time summary night 1
X-ray delivery:
12.7 keV, up to 208 pulses at 1.1MHz, 1.1-1.5 mJ |
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Shift end, posted by Adam Round on 31 Mar 2024, 23:20
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X-ray delivery
12.72 keV, 10Hz, ~1.4 mJ/pulse, some beam drift in the horizontal direction observed (probably mirror related)
Optical
laser delivery |
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Shift summary, posted by Chan Kim on 30 Mar 2024, 22:50
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X-ray delivery
- 12.72 keV, 10Hz, ~1.4 mJ/pulse, continuous beam drift in the horizontal direction observed
Optical laser delivery |
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Issue, posted by Chan Kim on 30 Mar 2024, 22:02
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Continuous pointing drift in horizontal direction.
It may trigger a vacuum spike at SPB OH (MKB_PSLIT section) at 21:07 pm.
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Issue, posted by Romain Letrun on 30 Mar 2024, 06:59
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DOOCS panels are again incorrectly reporting the FXE shutter as opened when it is in fact closed. This had been fixed after it was last reported in February
(elog:24), but reappeared now. |
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(Resolved) Issues with DAQ, posted by Björn Senfftleben on 30 Mar 2024, 00:17
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We had some trouble with the DAQ. It was not able to start runs properly.
We got the following error messages:
initially: |
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Shift summary, posted by Chan Kim on 29 Mar 2024, 22:38
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X-ray delivery
- 12.72 keV, 10Hz, ~1.4 mJ/pulse, stable delivery
Optical laser delivery |
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Issue, posted by Chan Kim on 28 Mar 2024, 14:56
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| Pulse energy fluctuation observed after full train operation in SA2 starts. |
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Shift summary, posted by Chan Kim on 28 Mar 2024, 14:54
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X-ray delivery
12.72 keV, 10 Hz, NOT stable delivery, pointing drastically changed in the afternoon, presumably due to the train-on-demand operation
at SASE2
Optical laser delivery |
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Shift summary, posted by Peter Zalden on 23 Mar 2024, 23:12
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User experiment transient grating, Cris Svetina. (LTP)
Used 7.11 keV from ACC with very good performance, above 4 mJ.
Collected pump-probe data on user sample most of the time
today
FXE will operate in 24h mode for the rest of the delivery week
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Shift summary, posted by Peter Zalden on 22 Mar 2024, 23:13
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User experiment transient grating, Cris Svetina. (LTP)
Used 7.11 keV from ACC with very good performance, above 4 mJ.
Collected pump-probe data on user sample most of the time
today, only minor interruptions due to accelerator outages
After the outage at 21h, SASE came back with 17 eV lower photon energy, so we had |
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Shift summary, posted by Raphael de Wijn on 22 Mar 2024, 06:35
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X-ray delivery
- 9.3 keV, >3 mJ/pulse, beam down around 30min
Optical laser delivery |