Morning Shift Summary on 15.08.2023, posted by Teguh Citra Asmara, Eugenio Paris on 17 Aug 2023, 11:00
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Achievements
Start cooling down the sample
Align the beamline and deliver the beam into the sample
Performed knife edge scans
and enlarge the beam horizontal size to 350 um
Tuned the VHM bending by checking the hRIXS resolution
Performed energy calibration |
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Late Shift Summary on 15.08.2023, posted by Justine Schlappa, Le Phuong on 17 Aug 2023, 11:04
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Achievements:
Set up PP laser, find spatial and temporal overlap between FEL and PP laser
Optimize MCP and HAMP settings for good XAS signal
Find
time zero from XAS on sample and optimize for XAS delay scans at 40 deg incidence angle
Take a fluence series on XAS delay scan from about 0.1 |
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Night Shift Summary on 15.08.2023, posted by Sergii Parchenko, Manuel Harder on 17 Aug 2023, 11:06
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Achievements:
Replaced focusing lens of PP laser and measured focus with knife edge, focus is about 720 micron vert. & 600 horizontal. Horizontal
x-ray spot size is 220 micron
Adapted fluence calibration for the new spot sizes
Optimized spatial and temporal overlap with new |
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Morning Shift Summary on 16.08.2023, posted by Teguh Citra Asmara, Eugenio Paris on 17 Aug 2023, 11:07
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Achievements:
Performed tr-RIXS on peak A, B, and C at 2.4 mJ/cm^2
Performed tr-XAS on peak A at 3 fluences
Performed tr-RIXS
on peak A at 4 mJ/cm^2
Problems: |
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Afternoon shift summary on 16.08.2023, posted by Teguh Citra Asmara on 17 Aug 2023, 11:08
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Achievements:
tr-RIXS at 4 mJ/cm2 for energies A, B, C, and D (pre-edge)
Checked and optimized FEL alignment, t0 and overlap with PP laser
after reset of machine synchronization
Long delay scans for Peak A and C, up to 100 ps |
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Night shift summary on 16.08.23, posted by Sergii Parchenko, Manuel Harder on 17 Aug 2023, 11:09
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Achievements
Acquired tr-RIXS data with 4.0 mJ/cm² laser power for 21 delays between -2 and +10 ps at 853 eV. including static XAS and dark hRIXS
runs. Totally collected 210 minutes of data i.e. 10 minutes per delay
Acquired tr-RIXS data with 4.0 mJ/cm² laser power for 21 delays between |
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Afternoon Shift Summary on 17.08.2023, posted by Justine Schlappa on 17 Aug 2023, 23:54
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Achievements:
1. Finalized tr-RIXS series at 1.74 mJ/cm2
2. Checked FEL alignment |
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Noght shift sammary 18.08.2023, posted by Sergii, Manuel on 19 Aug 2023, 07:16
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Night shift summary on 18.03.2023
Finished XAS series at 1.5 mJ/mm² for different delays
Performed XAS at 6 mJ/mm²
Tested tr-RIXS signal
at 1mj/mm² with 29 different delays, signal too weak to continue
Took 5 hours of tr-RIXS signal at 1.2 mj/mm² with 29 different delays
Problems: |
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Giuseppe, Justine, posted by Giuseppe Mercurio on 06 Sep 2023, 06:35
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achievements:
- we found optimum hRIXS settings for 1020 eV but moving the detector arm
- we found optimum hRIXS settings for 920 eV but moving the detector arm, and then grating pitch and detect arm |
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Shift Summary, posted by Ben, Andreas on 06 Sep 2023, 23:33
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Achievements
Determined temporal overlap between the X-ray and laser
measured Ti L-edge XAS and RIXS on samples for Asamara beamtime
Problems
No problems
Plan for Next Shift |
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Shift summary, September 7 after nightshift, posted by Justine Schlappa, Guiseppe Mercurio on 07 Sep 2023, 07:24
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Achievements:
- Optimized hRIXS settings for OK edge at 145 deg scattering angle, resolution of about 50 meV
- Transferred the user sample |
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Shift summary, posted by Andreas Scherz on 07 Sep 2023, 23:46
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Shift summary 07.09.2023
Achievements:
1. found t0 on LSCO x=0.15 at pre-peak O K edge |
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Shift summary, posted by Benjamin van Kuiken on 22 Sep 2023, 06:51
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Achievemnets
Characterized the X-ray and laser danage on the STO2LNO2
Problems
Cound not find fine timeing from XAS measurements performed on the sample
MCP sees 266 nm PP laser
SiN mesaurement |
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summary of 23.09, posted by Natalia, Justina, Giacomo, Sergey, Ben, Eugenio, Teguh on 24 Sep 2023, 07:49
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Around 6:55 there was a power glitch. Power in the experimental hutch and rack room went down in SASE3, error message in Xray interlock system and no
power for PP laser.
During morning TS turned the power on and interlock issues were solved by DESY. SCS could restart large part of SCS systems, however got help |
SCS Night Shift Summary, posted by Benjamin van Kuiken on 27 Sep 2023, 07:51 
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Achievements
Characterized optical laser spot at sample
Problems
FEL beam had very unstable intensity and spectrum. As a result no useful data could be collected during the night
FEL pointing |
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Shift summary, posted by Laurent Mercadier on 29 Sep 2023, 22:59
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# Late shift summary 29.09.2023
Laurent, Phuong
## Achievements |
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Morning shift summary, posted by Giuseppe Mercurio on 01 Oct 2023, 14:48
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# Morning shift summary
Giuseppe, Martin
* achievements |
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Morning Shift Summary, posted by Benjamin van Kuiken on 20 Oct 2023, 15:22
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Achievements
Tested MCPs and APD for XAS
Both MCPs give a good XAS spectrum with no amplification, but small MCP requires higher bias
voltage
No fluorescence signal observed on the APD
Measured XAS of both samples
Measured static RIXS |
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Late Shift Summary on 20.10.2023, posted by Sergii, Giacomo on 20 Oct 2023, 23:22
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Late shift summary 20.10.2023
Achievements
-Switched AFS to burst mode
-Characterized PPL beam size |
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Night shift summary 21.10.2023, posted by Laurent, Phuong on 21 Oct 2023, 06:30
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Night shift summary 21.10.2023
Achievements
Found T0 on SiN, but the response is very slow (~10 ps).
Azimuth (phi) scan
Start of theta scan with optimized
phi
Problems |