Shift summary, posted by Ben, Justine on 05 Aug 2023, 15:33
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Achievements
Measured XAS and RIXS from NdNiO3 test sample at 230 K
Plan for next shift
Measure test sample at 20K
Find timing between X-ray and laser and look for transient signal
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Shift summary, posted by Romain Letrun on 05 Aug 2023, 08:20
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X-ray delivery
9.3 keV, 1-202 pulses at 1.13 MHz, 1.9-2.1 mJ.
Overall stable delivery.
L-IBFB could not be activated due to missing
missing transfer matrix elements. Missing parameters entered by the expert who happened to be on shift this morning.
Optical |
late shift summary, posted by Andreas, Sergii on 04 Aug 2023, 23:20
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achievements:
hooked up sample cooling and reached 20K at sample at typical low consumption rate
we archieved targeted resolving power of
~10,000 or 86meV @ 857eV at low temp 20K after indications that heating broadens the elastic line of CoO
we observe sample damage at 30% and |
night shift summary, posted by Giuseppe Mercurio, Teguh Asmara on 04 Aug 2023, 07:10
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achievements:
changed the LEPM to optimize resolution
found 140 meV
problems:
were not able to recover settings found because it is difficult to reproduce LEPM positions
plan: |
shift summary, posted by Giuseppe Mercurio, Teguh Asmara on 02 Aug 2023, 06:44
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achievements:
beam transport with the second half of undulators closed
measured pulse energy in SCS hutch and verified that the transmission
of the beamline with hr grating is as previously reported
knife edge scans along vertical direction to find focus (<=11 um) and horizontal |
Night shift summary 30.07.2023, posted by Sergii, Martin on 31 Jul 2023, 01:42
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Achivements:
-We measured vertical spot size for several VFM settings
Problems: |
Shift summary, posted by Ulrike Boesenberg on 30 Jul 2023, 23:06
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9 and 10keV beam, up to 30 bunches, significant drop in intensity in the morning and in the evening.
Activities:
Commissioning of EH MIRR device |
Morning Shift summary, posted by Giuseppe, Andreas on 30 Jul 2023, 18:35
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achievements:
calibration of exit slits
measurement of Cu L3 edge
moved hRIXS to nominal settings for Cu L3 edge
problems:
hRIXS motors could not be moved remotely, the problem was finally understood: GTZ had been moved manually into an interlock condition, |
Shift summary, posted by Ulrike Boesenberg on 30 Jul 2023, 02:02
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9.3 keV, 1-35pulses, stable delivery ~600uJ
*General alignment of MID branch to the DES
*Commissioning of CRL2 (MID_XTD6_CRL) together with EEE after change to close loop in the maintenance period and alignment of lenses, characterization |
Shift end, posted by Adam Round on 29 Jul 2023, 23:46
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X-ray delivery
12.4 keV, up tp 352 pulses but the intensity drop across the train was too dramatic to use. reasonably stable delivery with 202 pulses.
Optical
laser delivery |
Issue, posted by Harald Sinn on 29 Jul 2023, 17:57
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The hutch search of SASE3, SXP became defective around 5am.
DESY MPS group replaced a defective warning light unit and now it seems ok. |
Status, posted by Harald Sinn on 28 Jul 2023, 15:37
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Good news: The 'jitter'-tests was sucessful and BKR could identify the jitter source related to a wrong software setting around the AH1 module
of injector.
This was now fixed and the jitter has disappeared |
end of shift summary, posted by Giuseppe Mercurio, Laurent Mercadier on 28 Jul 2023, 14:56
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achievements:
found new M2 bender position for focusing using blank
tried to use unfocused beam for ESLITS calibration, but could not see
it at SCSPopin, only at M5 Popin
we moved the XRD chamber laterally, closer to hRIXS, to be able to cut the beam using the sample at grazing |
Status, posted by Harald Sinn on 28 Jul 2023, 14:46
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As discussed, there will be a beam interuption form 14:45 until probably 15:45 related to jitter studies at A1 that the BKR would like to try out.
Harald |
Shift Summary 27_07_23 night, posted by Sergii, Manuel on 28 Jul 2023, 06:38
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Achievements:
1. Beam in sample chamber, almost overlapping with ALAS
2. We saw signal on MCP and diode2 |
Status, posted by Harald Sinn on 25 Jul 2023, 19:18
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After the 12 hour cryo failure last night, it was decided to exchange a faulty window with some reduced transmission at the injector laser today
(see email by Andreas to xo-info yesterday).
This was sucessful and the injector tunnel was closed today 16:40 and restart of the gun is ongoing. Tomorrow ramp up and SASE tuning. |
Status, posted by Frederik Wolff-Fabris on 23 Jul 2023, 17:28
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Photon Activities by XPD colleagues in SA3 are concluded on Sunday 23.07 at 17:00. The photon commissioning activities are concluded for this
week.
The PRC agrees with RCs to handle beam back to BKR for further tuning activities while touching common nobs. |
Shift Summary SA2, posted by Silja Schmidtchen on 21 Jul 2023, 20:31
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Alignment to HED: https://in.xfel.eu/elog/XRO+Beam+Commissioning/205
SA2 - divergence with various M2 bender positions HED - https://in.xfel.eu/elog/XRO+Beam+Commissioning/200
SA2 - divergence with various M2 bender positions MID - https://in.xfel.eu/elog/XRO+Beam+Commissioning/196 |
Summary of SA1 shift for XO and instruments, posted by Kelin Tasca on 21 Jul 2023, 17:22
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PBLM checked: https://in.xfel.eu/elog/XRO+Beam+Commissioning/203
Solid attenuators checked: https://in.xfel.eu/elog/XRO+Beam+Commissioning/194 |
Beam aligned to HED, posted by Antje Trapp on 21 Jul 2023, 16:54
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Position stored in XRO setpoints - F and HED setpoints - A |