End of shift, posted by Johannes Moeller on 16 Mar 2023, 01:35 
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Stable HXRSS delivery with >800 uJ, 1 bunch, 8.99 keV.
Re- Alignment of X-ray beam performed.
-Beam position defined for sample interaction in SAM CAM1. Do not touch SAM CAM1 |
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Shift summary, posted by Johannes Moeller on 17 Mar 2023, 01:48
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The intensity of the Seeding decreesed from 850 uJ to 550 uJ during the time between 20:00 and 02:00.
The Spectral purity also got worst, the beam in HIREX looks to have more SASE shoulders.
Between 18 and 20 we show a prossible transiant signal, PPL, of the lower branch. But a problem with the monochromator in the MID opt Hutch trigger |
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shift summary, posted by Johannes Moeller on 18 Mar 2023, 01:45
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stable HXRSS delivery at 8.99 keV, 1 bunch. XGM intensity during the day decreased from 750 uJ to 600 uJ.
Vacuum in sample chamber
stabilized with cold trap and full beam path opened to AGIPD and endstation
Again problems with smaract stages in DES, but imager in a good
position to continue.
First scattering data recored from water jet. Unknown, bimodal intensity distribution
Focus characterization |
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shift summary, posted by Johannes Moeller on 19 Mar 2023, 02:01
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upper and lower branch of SDL aligned
beamsizes and angular mismatch characterized
vacuum leak of flight
path fixed
side view microscope re-aligned
problems with replaced MPC diamond detector. issue with in-vacuum cabeling suspected
misconfigured
timing of AGIPD fixed
splitting ratio of SDL detuned while HXRSS intensity decreased significantly. Possibly correlated.
With |
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Issue, posted by Johannes Moeller on 08 Jun 2023, 11:02
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Addition to previous issue:
Last incident (of overall 4), we had 0 bunches, moved in XTD1 ATT 0.6 and 1.2 mm CVD diamond in and 2.4mm CVD out. However, vacuum started to
become bad already two days ago. |
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Shift summary, posted by Johannes Moeller on 25 Aug 2023, 06:20
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Shift summary the 24th of Aug
MID takes the seeded beam about 200 uJ including SASE background.
Monochrometer is aligned.
Mono + CRL2 was tested.
Found
rough timing with a fast diode at the sample position
Finding the temporal overlap with Forsted YAG hasn't been done yet. The motor (PPODL) |
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Shift summary, posted by Johannes Moeller on 29 Sep 2023, 00:35
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1, 60 and 350 pulses at 8.7keV, HXRSS
*focus characterization CRL2 lens 3,5,6
*Si 20nm XPCS with 20 and 50 pulses to evaluate the contrast |
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Shift summary, posted by Johannes Moeller on 01 Oct 2023, 02:00
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HXRSS at 8.8 keV, 1, 60 or 350 pulses. Quite stable seeding performance
loaded new sample (HGW) in the morning
measured full temperature series on HGW during the day
problem with vacuum
in the cryostat-chamber, which triggered the interlocked during the data taking and blocked AGIPD for some temperatures
focussing optimized |
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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 Johannes Moeller on 02 Nov 2023, 02:28
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stable delivery of 1mJ SASE at 18keV
NAFO lens characterization with caustic scan
successful detector calibration of AGIPD
with LaB6 and alignment of Jungfrau to diffraction signal with LaB6
test of ptychography with 18keV (not successful)
successful setup
of online holography analysis with test measurements
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Shift summary, posted by Johannes Moeller on 03 Nov 2023, 02:08
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stable 18 keV SASE delivery
measurement of siemens star in the morning
alignment of phase plate for the nano focussing
lenses
testing and debugging of the pulse on demand macro
holography test measurements and optimization of online analysis
alignment
of user samples
Problems: |
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Shift summary, posted by Johannes Moeller on 04 Nov 2023, 02:29
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Stable delivery of SASE at 18 keV. The intensity dropped slightly from 1mJ to 0.88mJ during the evening, but everything good.
fixed
the laser pulse-on-demand + FSSS scanning macro
We take some images series of the laser drilling process for different laser fluences
We
started to take first time resolved data
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Issue, posted by Johannes Moeller on 22 Nov 2023, 10:19
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The Si 0.5mm absorber of XTD1 attenuator seems to be damaged. First screenshot is with that one inserted. In the second screenshot, it is replaced with
a Si 0.5mm from MID_XTD6_ATT.
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Shift summary, posted by Johannes Moeller on 22 Nov 2023, 22:48
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*Tests for online XPCS pipeline ongoing
*beam optimization with power slits, current beam size 8x13um (v x h), we assign the larger value in the horizontal direction to jitter
*Movement of the AGIPD quadrants to increase q range to lower values |
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XTD2 Si500 attenuator broken, posted by Johan Bielecki on 04 Apr 2023, 11:18
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Attachment 1: Beam in SPB hutch with Si500
Attachment 2: Beam without Si500 |
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Shift summary, posted by Johan Bielecki on 07 Apr 2023, 23:03
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Beam delivery for proposal 3378
Achievements/Observations
Collected data on liquid H20 and D20
Found conditions where only ice were seen. approx. 4h of ice data taken. Starting to |
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Shift summary, posted by Johan Bielecki on 08 Apr 2023, 22:52
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Beam delivery for proposal 3378
Achievements/Observations
Collected large amounts of data for the user program on water crystallisation and angular correlations
To do for next |
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Shift summary, posted by Johan Bielecki on 15 Jun 2023, 23:08
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X-ray delivery
12.42 keV, stable delivery in single pulse mode with 1.9 mJ/pulse
Optical laser delivery
532 nm ns-laser for sample pumping
Achievements/Observations |
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Jet alignment test- obeserver, posted by Jaydeep Patel on 29 Oct 2022, 11:03
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Nozzle type
Nozzle Aperture(µm)
Sample |
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Shift end, posted by Jayanath Koliyadu on 09 Feb 2023, 07:14
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X-ray delivery
9.3 keV, 1-85 pulses, 1.3 mJ, stable delivery
Optical laser delivery
800 nm, 1-226 pulses, stable delivery except for shift change issues
Achievements/Observations |