Status, posted by Frederik Wolff-Fabris on 01 Feb 2025, 15:40
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Saturday 01.Feb around 2AM machine went down due to problems with cold magnet at A20:
https://ttfinfo.desy.de/elog/XMLlist?file=/XFELelog/data/2025/05/31.01_n/2025-02-01T07:06:16-04.xml&xsl=/elogbook/xsl/elog.xsl&picture=true
During the early morning BKR used a diffrent trajectory at LINAC to continue lasing, altough with poor performance. |
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Status, posted by Harald Sinn on 15 Mar 2025, 19:49
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MID called and reported issue with Dachs terminals at the user labs (probably no power). TS was informed. Because the lab are currently accessible
(doors are locked open), TS will take care about it on Monday. |
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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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. |
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Shift summary, posted by Chan Kim on 30 Jan 2025, 23:08
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X-ray delivery
11.0 keV, up to 178 pulses at 564 kHz, 650 uJ.
Optical laser delivery
illumination and pp lasers
Achievements/Observations |
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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 Chan Kim on 31 Jan 2025, 21:24
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X-ray delivery
11.0 keV, up to 352 pulses at 1.1 MHz, 900 uJ.
Optical laser delivery
ns illumination and pp lasers
Achievements/Observations |
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Shift summary, posted by Raphael de Wijn on 05 Feb 2025, 23:42
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X-ray delivery
up to 202 pulses per train (~1 mJ pulse energy), 0.5 MHz.
Optical laser delivery
PP laser aligned to the interaction point
Achievements/Observations |
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Shift summary, posted by Raphael de Wijn on 06 Feb 2025, 23:13
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X-ray delivery
up to 202 pulses per train (~1.4 mJ pulse energy), 0.5 MHz.
Optical laser delivery
OPO issue in the late shift
PP laser aligned and timed both at the interaction point and in PAM
Achievements/Observations |
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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 Tokushi Sato on 08 Feb 2025, 00:00
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SPB/SFX 7955 Shift 1
**X-ray delivery**
* up to 202 pulses per train (~1.4 mJ pulse energy), 0.5 MHz. |
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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 Raphael de Wijn on 08 Feb 2025, 23:44
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SPB/SFX 7955 Day 2
**X-ray delivery**
* up to 202 pulses per train (~1.4 mJ pulse energy), 0.5 MHz. |
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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 Raphael de Wijn on 10 Feb 2025, 00:56
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SPB/SFX 7955 Day 3
X-ray delivery
up to 202 pulses per train (~1.4 mJ pulse energy), 0.5 MHz. |
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Shift summary, posted by Tomas Popelar on 11 Feb 2025, 01:41
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SPB/SFX 7955 Day 4
X-ray delivery
up to 202 pulses per train (~1.4 mJ pulse energy), 0.5 MHz |
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Shift summary, posted by Tokushi Sato on 13 Feb 2025, 07:24
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X-ray delivery
up to 352 pulses per train (~1.9 mJ pulse energy)@9.3 keV, 0.5 MHz ans 1.1 MHz. Beamdown for 40 min.
Optical laser delivery |
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Shift summary, posted by Tokushi Sato on 15 Feb 2025, 06:52
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X-ray delivery
up to 202 pulses per train (~1.9 mJ pulse energy)@9.3 keV, 0.5 MHz
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Shift summary, posted by Tokushi Sato on 16 Feb 2025, 06:46
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X-ray delivery
up to 202 pulses per train (~1.9 mJ pulse energy)@9.3 keV, 0.5 MHz
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Shift summary, posted by Tokushi Sato on 17 Feb 2025, 06:57
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X-ray delivery
up to 202 pulses per train (~1.9 mJ pulse energy)@9.3 keV, 0.5 MHz
Optical laser delivery |