Issue, posted by Frederik Wolff-Fabris on 12 Nov 2024, 10:07 
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- While FEL IMG with YAG screen was inserted in SA1, EPS/MPS was not limited to the expected 2 bunches, but to 30 bunches;
- It was found
the condition #3 ("SA1_XTD2_VAC/Switch/SA1_PNACT_Close") at the EPS Mode-S was disabled which should be always enabled;
- Condition
#3 has been enabled again and now SA1 is limited to 2 bunches, as expected when YAG screen is inserted.
Further investigations will be done to |
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Issue, posted by Frederik Wolff-Fabris on 15 Nov 2024, 10:50
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SA2 cell#5 undulator segment moved at ~09:45AM Fri to 25mm without aparent reason and undulator experts need a ZZ to exchange power supply; FEL
instensity dropped from 230uJ to 60uJ s consequence.
RCs are preparing south branch for the iminent ZZ. HED is informed. |
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Status, posted by Dirk Raiser on 17 May 2024, 10:42
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Laser status:
After the laser issues listed in https://in.xfel.eu/elog/OPERATION-2024/99 the
late shift was finally able to find a timing setting for the amplifier trigger that was beyond stable settings under usual conditions, but which allowed |
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Shift summary, posted by Chan Kim on 31 Jan 2024, 23:26
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31.01.2024 (Day shift)
X-ray delivery
10 keV
1200 - 400 uJ (significant pulse energy slope within train)
Optical laser delivery |
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Shift summary, posted by Chan Kim on 13 Mar 2024, 23:41
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X-ray delivery
6 keV, 2.6 mJ/pulse, stable delivery
Optical laser delivery
800nm PP laser, stable delivery
Achievements/Observations |
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Shift summary, posted by Chan Kim on 15 Mar 2024, 00:16
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X-ray delivery
6 keV, 2.4 mJ/pulse, stable delivery
Optical laser delivery |
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Shift summary, posted by Chan Kim on 15 Mar 2024, 23:43
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**X-ray delivery**
- 6 keV, 3.2 mJ/pulse, stable delivery
**Optical laser delivery** |
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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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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 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 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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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 Chan Kim on 07 Jun 2024, 23:12
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X-ray delivery
- 7.0 keV, up to 202 pulses at 564 kHz, 1.0 mJ.
- Average pulse energy was about 1.9 mJ on Tuesday and Wednesday. It has to be discussed with BKR tomorrow morning. |
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Shift summary, posted by Chan Kim on 09 Jun 2024, 22:45
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X-ray delivery
7.0 keV, up to 202 pulses at 564 kHz, 1.0 mJ.
Optical laser delivery
ns laser for jet illumination
Achievements/Observations |
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Shift summary, posted by Chan Kim on 24 Aug 2024, 23:09
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X-ray delivery
-12.40 - 12.82 keV, XDT9 XGM ~0.81 mJ@ end of shift
Optical laser delivery |
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Shift summary, posted by Chan Kim on 27 Aug 2024, 12:17
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X-ray delivery
12.78 keV, ~1.3 mJ
Optical laser delivery
800 nm laser for jet visualization
Achievements/Observations |
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Issue, posted by Chan Kim on 25 Sep 2024, 16:53
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600um thick CVD diamond (XTD2 attenuator) seems damaged
Attachment 1: 600um thick CVD diamond (Arm 4) OUT |
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Shift summary, posted by Chan Kim on 25 Sep 2024, 23:36
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X-ray delivery
6 keV, ~2.8 mJ, stable delivery
Optical laser delivery
ns laser for particle visualization
Achievements/Observations |
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Shift summary, posted by Chan Kim on 26 Sep 2024, 23:12
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X-ray delivery
6 keV, ~2.7 mJ, stable delivery
Optical laser delivery
ns laser for particle visualization
Achievements/Observations |
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Shift summary, posted by Chan Kim on 27 Sep 2024, 23:13
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X-ray delivery
6 keV, ~3.0 mJ, stable delivery
Optical laser delivery
ns laser for particle visualization
Achievements/Observations |