Shift summary, posted by Wonhyuk Jo on 12 Aug 2024, 02:07
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Found spatial overlap at Suna microscope with Zyla cam.
The splitting ratio was obtained about 1:1.
The spatial jittering from upper and lower branch were investigated. |
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Shift summary, posted by Wonhyuk Jo on 13 Aug 2024, 02:04
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Found the interference fringe at Suna microscope with Zyla cam from MID split-and-delay line.
The fringe patterns were recorded as a function of delay controlled by the upper branch motor position.
Obtained the interference fringe patterns with two pulses with different repetition rate of machine. |
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Shift summary, posted by Wonhyuk Jo on 13 Sep 2024, 02:16
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- DAQ was crashed after taking darks of AGIPD. It was solved by DOC and OCD.
- Laser could not switched from optical to RF lock. Solved by OCD (using doocs).
- Energy scan was attempted, which was not successful. |
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Shift summary, posted by Wonhyuk Jo on 14 Sep 2024, 02:23
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- The seeding optimization result: Total 450 uJ (Seeding of 150 uJ + SASE of 300 uJ). BKR will be able to start optimization on Saturday
around noon if necessary.
- The pump-probe (PP laser and PuMa pulse) experiment data on the substrate peak was collected. |
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Shift summary, posted by Wonhyuk Jo on 15 Sep 2024, 02:16
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- The seeding optimization is ongoing, which was not successful. Now we have a total of 170 uJ including SASE and seeding.
- The option to switch to SASE is relatively not complex and can be done with the support of BKR without a seeding expert. BKR expects to
provide about (more than) 1 mJ. To be discussed with user later. |
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Shift summary, posted by Wonhyuk Jo on 16 Sep 2024, 02:21
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- Pump-probe experiments are being conducted using PuMa and PP laser.
- The user program is ongoing over the night.
Tomorrow, |
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Shift summary, posted by Jörg Hallmann on 26 Sep 2024, 01:46
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Started the day with vacuum & detector issues
real start of the experiments only at about 6 p.m.
measurement of a selection of samples (urea, ludox) using the levitation device |
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Shift summary, posted by Jörg Hallmann on 27 Sep 2024, 01:51
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started initial alignment for the ptycho experiment
Continued with XPCS measurement using the levitation device
issues: contribution of the 2nd harmonic of 8 keV at 16 keV visible on the Jungfrau detector - surpressing via mirror alignment not successful |
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Shift summary, posted by Jörg Hallmann on 28 Sep 2024, 01:31
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started with data acquisition for the ptycho experiment with different geometries
started with XPCS measurements of capillaries using the FSSS |
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Shift summary, posted by Jörg Hallmann on 28 Sep 2024, 23:42
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continued with the evaluation of the XPCS analysis packages
investigated the effect of alignment optimizations and forced misalignments on the contrast directly with the online XPCS tool
checked additional standard samples |
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Shift summary, posted by Jörg Hallmann on 30 Sep 2024, 01:50
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01:49
Worked on the XPCS analysis packages |
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Shift summary, posted by Ulrike Boesenberg on 31 Oct 2024, 02:43
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12.389keV, HXRSS, 1-400+ bunches, 450uJ
Seeding alignment
Beamline alignment (Mirror + foccussing)
Measured energy and moved it the requested value
Cryos
for sample and monochromator are prepared
Aligned DES spectrometer
Started with DCCM characterization (440)
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Shift summary, posted by Jörg Hallmann on 05 Dec 2024, 00:06
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machine runs at 17 keV with about 1.2 mJ
achievements: |
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Shift summary, posted by Konopkova Zuzana on 02 Feb 2024, 12:40
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beam parametes: 8.5-9 kev, 1.2 mJ, 1-2 pulses
HED trajectory established from XRO setpoint, shape and transmission optimized
monochromator aligned
5
sets of CRLs including nano-focus aligned
ZZ yesterday morning to fix cameras, connect motors..
DAQ rolled back to legacy version, |
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Experiment summary, posted by Konopkova Zuzana on 13 Feb 2024, 08:55
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*Achievements :
- Generally rather successful with very high quality beam parameters
- We had a nearly steady 800 uJ+ HXRSS flux during the user run and ~ 4mJ SASE during the setup at HED. |
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Shift summary, posted by Motoaki Nakatsutsumi on 24 Feb 2024, 11:58
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Shift summary 2024-02-23 07:00 - 2024-02-24 10:00
We got self-seeding at 8.5 keV very quickly after changeover from 10.5 keV operation finished at 2024-02-23 07:00.
Pulse energy ~ 600 uJ. |
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Shift summary, posted by Motoaki Nakatsutsumi on 25 Feb 2024, 14:47
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Shift summary for 2024-02-24 from 07:00 to 2024-02-25 at 14:00:
Self-seeding at 8.5 keV, with approximately 500 μJ per pulse. Following re-tuning around 10 am on the 25th, the energy per pulse increased
to around 600 μJ. |
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Shift summary, posted by Motoaki Nakatsutsumi on 26 Feb 2024, 14:32
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Shift summary for 2024-02-25 from 11:00 to 2024-02-25 at 14:00:
Self-seeding at 8.5 keV, with approximately 500 μJ per pulse.
Overall, the performance of x-ray self-seeding remains good, and users are happy. Pointing stability is also exceptional. However, enhancing |
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Experiment summary, posted by Konopkova Zuzana on 05 May 2024, 00:25
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proposal 5700 finished on 04.05. The experiment used 352 pulses at 4.5 MHz and 18 keV to X-ray heat pressurized samples in diamond
anvil cells. Overall succesful on several samples.
Issues:
the requested 20.5 keV photon energy had too low pulse intensities
so we had to go down to 18 keV
pulse energies at 18 keV (300-400 uJ) were insufficient for some samples
the ramp in pulse envelope |
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Shift summary, posted by Konopkova Zuzana on 27 May 2024, 06:41
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beam parameters: 2 colors at around 6.5 keV, 1 pulse
achievements:
user program continues with data acquisition at slightly varying photon energies (tens of eV both colors simultaneously) and at different delays |