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 |
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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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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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 |
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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 Chan Kim on 02 Nov 2023, 23:25
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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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other, posted by Chan Kim on 24 Nov 2023, 20:48
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Beam drift in the horizontal direction (XTD9_XGM x position) started at around 10am and continuously drifted until 16:00.
After then, beam has been drifted back to original position within 4 hours. |
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Shift summary, posted by Chan Kim on 24 Nov 2023, 23:11
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X-ray delivery
16.9 keV, up to 30 pulses and 1.1 MHz for alignment, 1 pulse for data collection
900 uJ
Beam pointing and stability
issues towards end of shift
Optical laser delivery |
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other, posted by Chan Kim on 25 Nov 2023, 19:56
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Beam drift in the horizontal direction (XTD9_XGM).
From ~16:00, X-ray beam started to drift in the horizontal direction. In total, ~0.3 mm drift observed within 2-3 hours.
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Shift summary, posted by Chan Kim on 25 Nov 2023, 23:45
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X-ray delivery
16.9 keV, up to 30 pulses and 1.1 MHz for alignment, 1 pulse for data collection
800 uJ
Beam pointing and stability
issues towards end of shift (again)
Optical laser delivery |
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Sample Camera got stuck (likely at 11pm) and was only noticed at 5am, posted by Bjoern Senfftleben on 24 Nov 2023, 05:07
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After going in and reconnecting the camera, we observe att. 1.
According to logs the camera device server was restarted around 11pm, however the camera instance was never reinstantiated after the restart. |
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Late Shift Summary, posted by Benjamin, Yi-Ping, Ru-Pan, Andreas on 31 Mar 2023, 05:10
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Achievements
Optimized BOZ for Co and Fe
Estabilished Stable liquid jet flow with 30 mM Fe(bpy)3
Problems
Jet froze several times
Chamber warmed up earlier in the day. This led to a "dusting" of CNCbl on many surfaces |
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Shift Summary, posted by Benjamin, Robert, Yi-Ping, Ru-Pan on 30 Mar 2023, 04:16
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Achievements
Found coarse timing between XFEL and optical laser
Problems
Did not see a observe fine timing signal from silicon nitride measurement
Plan for night shift |
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morning shift summary, posted by Benjamin, Nahid, Raphael, Philippe, Victoria, Timo on 15 Mar 2023, 17:01
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Achievements
Found RIXS signal from liquid jet
Measured static RIXS and PFY-XAS spectrum of Co(cp)(CO)2
Problems
hRIXS detector has a data latency issue and images were not being recorded in the DAQ. This required ~2-3 hours to solve plus time lost |
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Night Shift summary, posted by Benjamin, Manuel, Ricardo on 18 Feb 2023, 07:06
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Achievements
Used scanning of liquid jet to improve S/N
Measured x-ray PP XAS as a function of the delay between the two X-ray colors
Scan
energy of probe pulse with fixed pump energy
Problems |
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Night Shift Summary, posted by Benjamin van Kuiken on 15 Feb 2023, 06:54
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Achievements
Located flat jet and attempted measurement of XAS at several incident energies 1300, 1305, 1315 eV
Problems
We have difficulty locating the beam on the sample
We have not found a signal on eith of the diodes in the Chem chamber.
Knife |
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Late Shift Summary, posted by Benjamin van Kuiken on 02 Apr 2023, 04:46
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Achievement
Measured tXAS at the Fe L-edge of Fe(bpy)3 using both delay and energy scans.
Issues
The cold traps ran empty on the chamber resulting in a pressure spike that interlocked the DSSC
The rough vacuum of the chem |
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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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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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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 |