Shift summary, posted by Chan Kim on 01 Nov 2023, 22:57
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X-ray delivery
19 keV, ~0.9 mJ/pulse, stable delivery
Optical laser delivery
no
Achievements/Observations |
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Shift summary, posted by Johannes Moeller on 01 Nov 2023, 02:22
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stable delivery of 1mJ at 18keV SASE
succesful beamline alignment for MID (CRLs + M1 and M2) with mono.
alignment of NAFO
stack to DES and zyla camera with SASE and monochromatic beam
setup of DES spectrometer for 18keV on 440 reflection with SASE
timing
of PP laser with perpendicular excitation condition with diode and YAG
Problems: |
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Shift summary, posted by Chan Kim on 31 Oct 2023, 23:08
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X-ray delivery
19keV, 700-800uj
Optical laser delivery
ns laser
Achievements/Observations |
Status, posted by Jan Gruenert on 30 Oct 2023, 23:18 
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At the end of the MON late shift, the tuning status and obtained lasing pulse energies (ATT#1) are as follows:
SA1 at 19 keV : 660 uJ +/- 23 uJ
SA2 at 18 keV : 1073 uJ +/- 55 uJ
SA3 at
1.2 keV : 4330 uJ +/- 122 uJ
SD for a stable 2 min interval, fast XGM train average (INTENSITY.RAW.TRAIN) |
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Issue, posted by Jan Gruenert on 30 Oct 2023, 14:36
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The EPD reading system at the turnstiles of XTD10 entrance were not working this morning.
A necessary ZZ access to XTD10 could not be performed in the morning and had to be postponed.
Resetting the system by Michael Prollius was not sufficient. |
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Shift summary, posted by Raphael de Wijn on 30 Oct 2023, 07:10
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X-ray delivery
7.8keV, ~2.5mj, no beam before 1:15am
One undulator was not moving, expert was called
Optical laser
delivery |
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Shift summary, posted by Konopkova Zuzana on 28 Oct 2023, 14:52
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Beam parameters: 18 keV, 1 pulse, 600 uJ
- user beamtime started Friday, the 27th and going smoothly until now and we are in data collection mode
- shock compression setup with XRD and DiPOLE |
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Shift summary, posted by Chan Kim on 27 Oct 2023, 06:35
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X-ray delivery
7.8keV, 2.5mj, stable delivery, homogeneos intra train energy most of the time.
Optical laser delivery
ns laser for particle imaging
Achievements/Observations |
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Issue, posted by Chan Kim on 27 Oct 2023, 03:19
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We observed auto changes of the number of X-ray pulses last night and tonight.
It is related to 500 um thick Si attenuator in XTD2_ATT.
Even with 2.4 mm thick CVD (XTD2_ATT) IN, the number of pulses @SA1 changes to 28 whenever we insert 500 um thick Si attenuator. |
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Late shift summary, 26.10.2023, posted by Robert Carley on 26 Oct 2023, 23:25
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Achievements:
Continued with tr-RIXS
No problems
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Morning shift summary, 26.10.2023, posted by Sergii, Teguh on 26 Oct 2023, 15:03
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Morning shift summary, 26.10.2023
Achievements:
Continued measuring tr-RIXS at different laser fluences
Problems:
The max-jhub notebook server was very slow this morning around 9-10 h. DOC was informed, but the slowness has improved without any action |
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night shift summary, posted by Andreas Scherz / Eugenio Paris on 26 Oct 2023, 07:13
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Night shift summary
Achievements:
- Recovered time0 on SiN (time0 moved >20ps after FEL beam loss in the evening) |
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Shift summary, posted by Chan Kim on 26 Oct 2023, 07:10
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X-ray delivery
7.8keV, 2.4mj, stable delivery, homogeneos intra train energy most of the time.
Optical laser delivery
ns laser for particle imaging
Achievements/Observations |
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Shift summary 25.10.2023, posted by Diogo Filipe Monrroy Vilan e Melo on 26 Oct 2023, 06:48
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Staff: DM, CK, KK, JB, SR (SEC), LW (Uppsala university), MM (GU)
X-ray delivery
7.8keV, 2.4mj, stable delivery, homogeneos intra train energy most of the time.
Optical laser delivery |
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Morning Shift Summary, 25.10.2023, posted by Sergii, Teguh on 25 Oct 2023, 15:18
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Morning Shift Summary, 25.10.2023
Achievements:
Re-aligned FEL beam pointing and beamline mirrors after XGM intensity drop due to slow beam pointing drift over night.
Continued
taking momentum-dependent tr-REXS data.
Problems: |
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Morning Shift Summary, 24.10.2023, posted by Sergii, Teguh on 25 Oct 2023, 15:10
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Morning Shift Summary, 24.10.2023
Achievements:
Re-aligned the beamline after maintenance
Found time zero using SiN at 300 K
Change the He dewar and cooled down
back to 20 K
Adjusted the AFS laser parameters to recover the proper experiment settings
Started taking tr-RIXS with several time |
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other, posted by Chan Kim on 25 Oct 2023, 06:02
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Issue solved (elog:410) after changing NKB mirror coating to B4C.
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Shift Summary, posted by Diogo Filipe Monrroy Vilan e Melo on 25 Oct 2023, 06:02
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Staff: DM, CK, KK
X-ray delivery
7.8keV, 2.4mj, stable delivery, homogeneos intra train energy most of the time.
SASE 3 background
Optical |
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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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SASE 3 background heavily impacts our focus, posted by Diogo Filipe Monrroy Vilan e Melo on 25 Oct 2023, 02:43
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Attch 1: We were having trouble focusing at IRU chamber. After multiple attempts the best we could achieve was 2.9-3.1 um beam.
Attch 2: We then wanted to test if this was caused by the SASE 3 background, after them changing from >350 pulses to 1, we saw an instant
improvement of ~0.5um down to 2.3 um beamsize. |