Issue, posted by Chan Kim on 25 Oct 2023, 04:48 
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SA3 background is very strong and it affects our NKB (nano KB, Ru coating) focus.
Attachment 1: optimized NKB focus with 1 pulse @SA3 |
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Issue, posted by Thomas Preston on 24 Oct 2023, 19:26
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Vacuum issue at HED
At 18:26 the vacuum failed in the HED CRL3 chamber in the OPTs hutch. The vacuum failed in the section and tripped the valves in the OPT hutch;
it went from 1e-8 to 5 mbar in seconds. The leak is confined to the CRL chamber -- the sections upstream and downstream are not compromised and still have |
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Night shift summary, 23.10.2023, posted by Laurent Mercadier on 23 Oct 2023, 06:46
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Shift summary, posted by Raphael de Wijn on 23 Oct 2023, 05:15
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X-ray delivery
13.6 keV, ~1.6 mJ and up to 352 pulses at 1.1 MHz.
Beam down from 10:30 to 19:00.
Optical laser
delivery |
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Late shift summary 22.10.2023, posted by Sergii , Giacomo on 23 Oct 2023, 01:38
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Achievements
-Check XAS and static RIXS after the beam was back
-Do the warm up cycle to remove ice from the sample surface |
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Shift summary, posted by Alexey Zozulya on 23 Oct 2023, 01:10
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Milestones:
*Finish measurement program on the STO sample at room temperature
*Check mono fpitch and energy rocking curve |
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Shift summary, posted by Benjamin van Kuiken on 22 Oct 2023, 13:21
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Morning shift Summary 22.10.2023
Achievements
Checked beam alignment and overlap
confirmed sample integrity with static rixs on other sample locations
Problems |
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night shift summary, 22.10.2023, posted by Laurent, Phuong on 22 Oct 2023, 07:34
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Night shift summary 22.10.2023
Laurent, Phuong
Achievement:
-Collecting static RIXS data at different FEL repitition rates |
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Shift summary, posted by Raphael de Wijn on 22 Oct 2023, 00:27
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X-ray delivery
13.6 keV, ~1.6 mJ and up to 352 pulses at 1.1 MHz.
Beam down until around 1PM.
After agreement with FXE, we could
collect data until midnight.
Optical laser delivery |
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Late shift summary 21.10.2023, posted by Sergii, Giacomo on 21 Oct 2023, 23:34
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Achievements:
-Collecting TR-RIXS data for different fluencies and delay range
Problems |
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Shift Summary, posted by Benjamin van Kuiken on 21 Oct 2023, 15:34
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# Morning Shift Summary 21.10.23
Ben, Eugenio
Achievements |
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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 |
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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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Shift summary, posted by Romain Letrun on 20 Oct 2023, 23:10
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X-ray delivery
13.6 keV, ~1.6 mJ and up to 352 pulses at 1.1 MHz.
Beam down at 22:47, not recovered before the end of the shift. Otherwise
stable delivery.
Optical laser delivery |
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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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Shift end, posted by Jayanath Koliyadu on 19 Oct 2023, 23:30
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X-ray delivery
13.6 keV, ~1.7 mJ and up to 352 pulses at 1.1 MHz
Optical laser delivery
PP laser, 1 to 202 pulses, stable delivery except for the down time of ~1h
Achievements/Observations |
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Shift summary, posted by Raphael de Wijn on 18 Oct 2023, 23:19
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X-ray delivery
13.6 keV, ~1.8 mJ and up to 352 pulses at 1.1 MHz
Optical laser delivery
PP laser, amphos laser computer in error for ~2h
Achievements/Observations |
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Shift summary, posted by Alexey Zozulya on 18 Oct 2023, 02:09
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Shift summary (p4239)
Achievements:
- HXSS beam at 10.5 keV at 400 uJ pulse energy |
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Shift summary, posted by Raphael de Wijn on 17 Oct 2023, 23:23
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X-ray delivery
13.6 keV, ~1.6 mJ and up to 202 pulses at 0.5 MHz
Optical laser delivery
PP laser, stable delivery
Achievements/Observations |
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Experiment summary, posted by Konopkova Zuzana on 16 Oct 2023, 05:05
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Beam parameters: 18.8 keV, 350-600 uJ, 1 pulse
Experiment: Shock compression experiments using DiPOLE 70 J + XRD
- run through most of the users targets, largely succesful |