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 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 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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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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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 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 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 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 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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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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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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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 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 Jörg Hallmann on 27 Apr 2024, 02:11
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optimized the FEL energy on the absorption edge of Iridium
measurements on the SDW
of Chromium with max magnetic discharges of the PUMA at different attenuations
changed the sample from Chromium to user samples
issues:
energy scan not efficiently working
poor seeding quality in long FEL trains |
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Shift summary, posted by Juncheng E on 01 May 2024, 23:31
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X-ray delivery
9.3 keV, 3.3 mJ, 190 pulses/train
Optical later delivery
For jet illumination
Achievements/Observations |
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Shift summary, posted by Juncheng E on 02 May 2024, 23:19
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X-ray delivery
9.3 keV, 3.3 mJ, 190 pulses/train
Optical later delivery
For jet illumination
Achievements/Observations |
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Shift summary, posted by Juncheng E on 03 May 2024, 23:31
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X-ray delivery
- 9.3 keV, 3.1 mJ, 214 pulses/train at 1.1 MHz and 132 at 0.5 MHz
Optical later delivery |
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Shift summary, posted by Romain Letrun on 09 May 2024, 07:14
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X-ray delivery
11.56 keV, 1-352 pulses @ 1.13 MHz, 2.6-3.1 mJ.
Average intensity slowly decaying through the night.
Quite some
intensity gradient through the train (~35%).
Optical laser delivery |
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Shift summary, posted by Romain Letrun on 10 May 2024, 07:06
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X-ray delivery
11.56 keV, 1-352 pulses @ 1.13 MHz, 2.6-3.1 mJ. Stable delivery.
Intensity gradient with long train could not be reduced by
BKR.
Optical laser delivery |
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Shift summary, posted by Romain Letrun on 11 May 2024, 07:20
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X-ray delivery
11.56 keV, 1-352 pulses @ 1.13 MHz, 2.4-3.1 mJ. Stable delivery.
Intensity gradient with long train better than previous shifts
(~20% drop).
Optical laser delivery |