Status, posted by Frederik Wolff-Fabris on 25 Apr 2024, 21:11 
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V0 valve for SA2 closed as the pump P22090I at HED branch enters in wrong state. This closed nearby vacuum valves for HED branch and consequently
V0. Vacuum levels at the section remained in 10^-9 all time.
Thanks to VAC-OCD Denis Finze we removed this pump signal from interlock to allow operation in SA2 at MID branch. Further investigation will |
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Shift summary, posted by Jörg Hallmann on 25 Apr 2024, 01:50
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instrument alignment including NaFos, DES spectrometer, diamond detector, PUMA & test samples
seeding makes a good impression based on the DES spectrometer |
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Shift summary, posted by Raphael de Wijn on 22 Apr 2024, 23:26
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End of User beamtime 5157
X-ray delivery:
21 keV, ~500 uJ; stable delivery
Optical Laser: |
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Shift summary, posted by Raphael de Wijn on 22 Apr 2024, 00:06
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User beamtime 5157 day 5
X-ray delivery:
21 keV, ~400 uJ
Optical Laser: |
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SA2 status, posted by Jan Gruenert on 20 Apr 2024, 23:58
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20.4.2024 / 22h51:
DOC informed PRC that the SASE2 topic broker had to be restarted.
The EPS power limit was reset by PRC to the previous value of 40 W. |
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Shift summary, posted by Juncheng E on 20 Apr 2024, 23:37
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Staff: JK, SB, JE, AS, RW, FK
**X-ray delivery:**
- 21 keV, ~500 uJ |
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Status, posted by Jan Gruenert on 18 Apr 2024, 19:31
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The intra-bunchtrain feedback (IBFB) was not active until today afternoon.
Although not strictly required or requested for the current week experiments,
it was decided to turn on this feedback, which should generally be active to |
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Shift summary, posted by Peter Zalden on 13 Apr 2024, 23:03
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Measurements to check the impact of bunch compression on FXE mono transmission were successful. We could change the peak current between 4 and 12 kA
and saw changes in bandwidth between 17 and 100 eV (at 14 keV). Results are under evaluation.
SA1 brought to safe state: |
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SASE1 MIRROR MOTORS CALIBRATED, posted by Antje Trapp on 11 Apr 2024, 21:54
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Dear all,
we calibrated the mirror vertical motors to their geometrically neutral.
Please be aware that saved values for beamline settings may no longer be valid. This mainly applies to the vertical motor positions, but will |
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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 |