Shift summary, posted by Tokushi Sato on 03 May 2025, 06:47
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**X-ray delivery**
- 8.3 , 1600 uJ pulse energy
**Optical laser delivery** |
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Issue, posted by Andreas Koch on 02 May 2025, 08:07
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Concerning eLog entry #59, SPB PopIn:
The problem of the motor position, driving to the OUT position is fixed. |
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Shift summary, posted by Tokushi Sato on 01 May 2025, 23:35
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X-ray delivery
8.3 / 9.3 keV, 1400 uJ pulse energy, 1 hour down time
Optical laser delivery
NS illumination
355 nm pump laser
Achievements/Observations |
Issue, posted by Romain Letrun on 01 May 2025, 07:25 
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SPB pop-in monitor was not dricing to the switch when we retracted it to the "out " position with the MDL this morning. This prevented us to
use more than two pulses. We have moved the motor one step of 300 um up, which activated the switch and relased the interlock. This should however be fixed
so that the "out" position in the MDL works as expected and the motor operates reliably. |
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Shift summary, posted by Romain Letrun on 30 Apr 2025, 22:46
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X-ray delivery
9.3 keV, 1800 uJ pulse energy
1 - 202 pulses at 564 kHz
Poor beam stability overall. Lots of intensity fluctuations and rather long time to recover after change of number of pulses in |
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Shift summary, posted by Tokushi Sato on 26 Apr 2025, 06:55
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Staff: PV, TS, JK + external collaborators
X-ray delivery:
10 keV, ~ 800 uJ, 128 pulses, tuning was needed for 10 min. |
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Shift summary, posted by Tokushi Sato on 25 Apr 2025, 06:48
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X-ray delivery:
10 keV, ~ 850 uJ, 128 pulses, tuning was needed for 1 hour
Optical Laser: |
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Issue, posted by Konopkova Zuzana on 24 Apr 2025, 08:42
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self-seeding level in SA2 is currently very low (~100 uJ, about 50% in the pedestal), need more information on how to proceed - is there any chance to
improve the seeding, or should we consider going to sase operation. |
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Shift summary, posted by Jayanath Koliyadu on 24 Apr 2025, 06:56
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X-ray delivery:
10 keV, ~ 900 uJ, 128 pulses, tuning was needed for few hours
Achievements / Observations: |
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Shift summary, posted by Chan Kim on 17 Apr 2025, 01:39
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X-ray delivery
18.8 keV, 260 uJ pulse energy
Optical laser delivery
No optical laser
Achievements/Observations |
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Shift summary, posted by Tokushi Sato on 14 Apr 2025, 23:08
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X-ray delivery:
20 keV, 250-400 uJ, 250 pulses, stable delivery
Optical Laser: |
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Status, posted by Jan Gruenert on 14 Apr 2025, 09:50
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Beam Downtime
During last night, apparently the photon beam was down in all SASE beamlines during two longer periods:
between 2:48am and 3h23am (35 min) on 14.4.2025
between 5:09am and 6h59am (1 hour 50 min) on 14.4.2025
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Shift summary, posted by Tokushi Sato on 13 Apr 2025, 22:55
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Staff: PV, TS, JK, FK, + users
X-ray delivery:
20 keV, ~ 300-400 uJ, 250 pulses, stable delivery |
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Shift summary, posted by Tokushi Sato on 12 Apr 2025, 23:15
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X-ray delivery:
20 keV, ~ 500 uJ, 246 pulses, stable delivery
Optical Laser: |
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Shift summary, posted by Tokushi Sato on 11 Apr 2025, 23:14
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X-ray delivery:
20 keV, ~ 400 uJ, 246 pulses, stable delivery
Optical Laser: |
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Shift summary, posted by Tokushi Sato on 10 Apr 2025, 23:17
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X-ray delivery:
20 keV, ~ 400 uJ, 128 pulses, stable delivery
Optical Laser: |
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Shift summary, posted by Tokushi Sato on 09 Apr 2025, 22:46
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X-ray delivery:
20 keV, ~ 400 uJ, 128 pulses, stable delivery
Optical Laser: |
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SA3 status, posted by Jan Gruenert on 09 Apr 2025, 10:22
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SASE3 Apple-X undulator cell 26 issue - SOLVED
During the night, an issue appeared with the SASE3 undulator cell 26 (2nd last Apple-X undulator).
This cell could not be operated and was in status open. |
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Issue, posted by Jan Gruenert on 09 Apr 2025, 09:41
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SASE1 XTD2 attenuator arm issue
On monday 7.4.2025, one of the SASE1 attenuator arms (SA1_XTD2_ATT/PNACT/A9) with a 2mm Silicon attenuator got stuck when inserted
EEE reports in the XO meeting today that DOC / EEE helped to unblock and remove it from the beam |
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Stability Issue, posted by Jan Gruenert on 07 Apr 2025, 15:35
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SASE1 pulse energy drops slowly three times
SASE1 XGM detects three times during the morning some slow drop in puls
energies from the SASE1 undulator.
The machine cannot find any correlation with any electron diagnostics. |