Shift summary, posted by Raphael de Wijn on 08 May 2025, 04:56
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Shift summary in-house beamtime night 1
X-ray delivery
9.3 keV, 1.7-2.2 mJ pulse energy, up to 202 pulses at 0.5MHz
Optical laser delivery |
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Shift summary, posted by Raphael de Wijn on 09 May 2025, 06:59
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Shift summary in-house night 2
X-ray delivery
9.3 keV, 2.2-2.5 mJ pulse energy, up to 202 pulses at 0.5MHz, high slope across the train
Optical laser delivery |
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Experiment summary, posted by Raphael de Wijn on 13 May 2025, 07:00
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End of in-house beamtime
X-ray delivery
9.3 keV, 2.2-2.5 mJ pulse energy, up to 202 pulses at 0.5MHz, stable over the week
Optical laser delivery |
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Shift summary, posted by Raphael de Wijn on 22 May 2025, 23:29
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Staff: @**Katerina Doerner** @**Elizabeth Galtry** @**Raphael de Wijn** @**Mohammad Vakili** @**Chan Kim** @**Diogo Melo**
**X-ray delivery**
- 9.34 keV, 1400-1600 uJ pulse energy |
Issue, posted by Peter Zalden on 06 Feb 2025, 23:02 
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We observed a damage spot on the SA1 FEL imager. It moves with the target holder, but not sure if its damage on the optical mirror or on the target itself.
This issue is not critical, but can become problematic in case one wants to determine beam size or state of optics (ATT or CRLs) upstream. |
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Shift summary, posted by Peter Zalden on 07 Feb 2025, 05:56
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Preparation for user expt #7944
X-ray delivery
since pulses (10 Hz) at 9.3 keV, 3 mJ
Pointing stability 55 um RMS in the horizontal plane on FXE PI, which is lower as compared |
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Shift summary, posted by Peter Zalden on 08 Feb 2025, 06:25
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Preparation for user expt #7944
X-ray delivery
Since pulses (10 Hz) at 9.3 keV, 2.2 mJ
Again similar low pointing noise
Achievements/Observations |
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Shift summary, posted by Peter Zalden on 09 Feb 2025, 06:35
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Preparation for user expt #7944
X-ray delivery
Single pulses (10 Hz) at 9.3 keV, 2.3 mJ
Again similar low pointing noise
Achievements/Observations |
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Shift summary, posted by Mohammad Vakili on 21 Feb 2025, 23:21
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SPB/SFX shift summary user experiment 8039
**X-ray delivery**
-15 keV with Hirex monitoring, 0.5 mJ/pulse, 202 pulses/train at 0.56 MHz pulse repetition rate |
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Issue, posted by Martin Dommach on 01 Mar 2025, 11:53
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Due to issues SCS has with pulses from SASE1 lasing in SASE3 and destroying,
or at least modifying, their sample, it was decided to change the order
in the RF configuration to have SASE3 pulses before SASE1. The change will be done at 12 pm, agreed with FXE. |
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Shift summary, posted by Lena Worbs on 16 Jun 2025, 07:14
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SPB/SFX shift summary inhouse experiment 9456, shift 15./16.06.2025
**X-ray delivery**
- 6.51 keV, 1.3-1.4 mJ 352 pulses/train at 1.1MHz rep rate |
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Experiment summary, posted by Lena Worbs on 17 Jun 2025, 07:08
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SPB/SFX shift summary inhouse experiment 9456, shift 16./17.06.2025
**X-ray delivery**
- 6.51 keV, 1.4 mJ, 352 pulses/train at 1.1MHz rep rate |
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Shift summary, posted by Konstantin Kharitonov on 21 May 2025, 22:41
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Staff: @**Katerina Doerner** @**Elizabeth Galtry** @**Raphael de Wijn** @**Mohammad Vakili** @**Chan Kim** @**Konstantin Kharitonov**
**X-ray delivery**
- 9.3 keV, 1400-1600 uJ pulse energy |
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Shift summary, posted by Konstantin Kharitonov on 24 May 2025, 23:06
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Staff: @**Katerina Doerner** @**Elizabeth Galtry** @**Raphael de Wijn** @**Mohammad Vakili** @**Chan Kim** @**Diogo Melo** @**Konstantin Kharitonov**
**X-ray delivery**
- 9.34 keV, 1200-1400 uJ pulse energy |
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Shift summary, posted by Konstantin Kharitonov on 25 May 2025, 23:57
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**X-ray delivery**
- 9.34 keV, 1200-1400 uJ pulse energy
**Optical laser delivery** |
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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 Jörg Hallmann on 31 Jan 2025, 06:28
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Alignment of KB mirrors: focused beam H150-200nm x V300-350nm. Characterization of focused beam with wire scan.
Installed ePIX table
and ePIX. Thorlabs server is not running, needs to be fixed by controls during the morning shift
Aligned rotation center of SSRY and put the
beam into it. Moved alignment pin down by 10mm and put protecting cover on it.
Aligned DES spectrometer crystal (using YAG) to 9keV.
Checked |
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Shift summary, posted by Jayanath Koliyadu on 25 Feb 2025, 02:41
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X-ray delivery
-15 keV with Hirex monitoring, 0.5 mJ/pulse, 202 pulses/train at 0.56 MHz pulse repetition rate
Optical laser delivery |
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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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Issue, posted by Jan Gruenert on 19 Jan 2025, 11:46
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1) BKR calls SUN11h20 and informs about issues with the SA1 SRA. Motors in ERROR.
2) Additionally, there was this morning a fire alarm, where in one rack (SASE1 rack 1.1 in XTD2) the gas extinguishing system was triggered,
see also https://ttfinfo.desy.de/XFELelog/show.jsp?dir=/2025/03/19.01_M&pos=2025-01-19T10:22:14 |