Shift summary, posted by Jörg Hallmann on 23 Nov 2023, 22:15
|
progress with the Damnit - XPCS analysis test with various samples (SiO2, Ludox etc.)
tested some external samples P3HT, SOD1 but it looks like conventional XPCS is not working (signal too low - increasing transmission leads to
radiation damage in both cases) |
|
CRL3: recalibration of y axis, test of x range and move to SEPS interlock trigger position, posted by karen appel on 16 Jan 2023, 16:01
|
CRL3 arm 2, 5 and 9 were mecanically religned to the V groove and retracted to some y position.
The y motor position was recalibrated by moving the motor to the lower limit switch, moving it up by 0.5 mm and then recalibrating the motor
and encoder position to the former software limit position. |
|
Shift summary, posted by karen appel on 04 Feb 2023, 08:34
|
We took the beam from 7 am, 24 h operation in three shifts.
We set up a new scheme for aligning the beam to the HED branch, which gives one X-ray axis downstream of the tunnel even if we operate at different
angles of M1 and M2 (i.e. 3 to 2 mrad). This relies on a fixed M3 Tx position and was tested for 2.5 mrad and 3 mrad during the shifts. CRL3 in the HED |
|
Shift summary, posted by karen appel on 05 Feb 2023, 08:40
|
Start up of HED ongoing for the three shifts
Day shift:
work on the new X-ray alignment scheme at 2, 2.5 and 3 mrad: test was positive and we can not work with Tx of M3 fixed at 4 mm for all |
Late shift activities, posted by bouffetier on 17 Feb 2023, 17:16 7x
|
17 Feb 2023, 17:15 : We centered Pin in the FEL beam and then imaged this pin with ILM and FSI to get common references.
We corected astigmatism with OAP |
|
Shift summary - night shift 2023-02-17, posted by Motoaki Nakatsutsumim, Carsten Baehtz, Olly Humphries on 18 Feb 2023, 00:32
|
Ealier shift members managed to get a good quality image on Optique Peter by imaging the sample plane to the Optique Peter with downstream nanofocus
(CRL4b). The quality is far superiour compared to the one with upstream nanofocus, which does just a projection of sample (backlight). The decision is
to stay with the downstream CRL. They had a few full power shots. The problem of reading Zyla data when rotation = 0 is solved by Olly. He put the script |
|
Shift summary - night shift 2023-02-18, posted by Motoaki Nakatsutsumi, Carsten Baehtz, Olver Humphries on 19 Feb 2023, 05:29
|
18 Feb 2023, 23:37 Together with the last shift members, we continued shooting laser on Cu 25 um thick wire for another 2 hours. We got excellent quality
x-ray imaging with a series of time delay up to several ns (eLog ID 39). X-ray imaging is now commissioned. The magnification was x7.5.
19 Feb 2023, 01:30 We tried to go to x20, but we couldn't find the x-ray beam. We even put the burn paper in front of the Optique Peter to |
|
Day shift summary, posted by Erik Brambrink on 19 Feb 2023, 08:06
|
19 Feb 2023, 08:08 Hand over from night shift
Added polarizer in the PAM beam in the optics hutch, reequilibrated reference arm of PAM
19 Feb 2023, 08:09 Darks taken for JF 1 and 2 |
|
late shift summary, posted by bouffetier on 19 Feb 2023, 19:51
|
19 Feb 2023,15:30 Shift handover
Runs will be added in the general Elog for data runs and acqusitions (Elog-4)
|
|
Shift summary 2023-02-19, posted by Motoaki Nakatsutsumi, Oliver Humphries, Carsten Baehtz on 19 Feb 2023, 23:25
|
8.2 keV, 750 uJ.
Short summary
- Optimize the downstream nanofocus CRL to image the sample to our detector (optique Peter) - successful) |
|
Shift summary, posted by Alexander Pelka on 01 Mar 2023, 16:07
|
Day shift 28.02
Got the beam, aligned it up to the TCC, mirrors in 3 mrad configuration, checked positions for the CRLs. Optimised
beam at the HAPG. Beam stability was fine, energy up to 1,5 mJ at 8.2 keV, and up to 1 mJ at 9.1 keV (used for the spectrometer calibration). |
|
Stability Issue, posted by Ulf Zastrau on 02 Mar 2023, 22:54
|
HED would like to report that since 2 days the SASE2 beam is instable.
The attached movie shows, on the left (90° rotated, so up-down is left-right)
the beam at the end of the HED hutch, and on the right its the same beam |
|
Shift summary, posted by Ulf Zastrau on 03 Mar 2023, 23:06
|
Beam delivery SASE 8,25 keV, 1300 µJ. Intensity stable,
but beam jittery in horizontal.
PRC (Dommach) did a ZZ around 13:00 and switched off coolling of M1 in XD1, but no effect on beam jitter. |
|
Shift summary, posted by Ulf Zastrau on 06 Mar 2023, 06:48
|
X-ray delivery stable in intensity, 1300-1400 mJ at 8150 eV SASE.
user experiment 3430 (Zastrau / Mishchenko)
|
|
HED Summary 21.3., posted by Lisa Randolph on 21 Mar 2023, 23:39
|
Got the beam, aligned it up to the TCC, mirrors in 3 mrad configuration, checked positions for the CRLs. Energy up to 500 uJ at 8.2 keV, 2
bunches.
Feedback M2 PBLM-2 camera was UNKNOWN. Power cycle (just switch off >> on) solved the issue. Also, the screen was extracted. Insert the screen. |
|
Late shift summary, posted by Konstantin / Lisa / Carsten / Rahul / Toma / Masruri on 22 Mar 2023, 17:07 7x
|
22 Mar 2023, 17:08 started the log, the aim for the shift is the alignment of the sample and source point measurement. In addition to that, we also plan
to check the Greateyes camera.
22 Mar 2023, 17:53 continuing the sample alignment |
|
HED shift summary 22.03., posted by Lisa Randolph on 22 Mar 2023, 23:57
|
During the night we worked on the temporal overlap between Relax laser and XFEL.
In the morning we noticed that the beam jitter is quite large (in and out of the aperture of the CRL4 lenses). There seems to be a correlation
with the HED popin. We adjusted the TCC with x-ray and laser. Performed transmission scans. |
|
HED shift summary 22.03., posted by Lisa Randolph on 22 Mar 2023, 23:57
|
During the night we worked on the temporal overlap between Relax laser and XFEL.
In the morning we noticed that the beam jitter is quite large (in and out of the aperture of the CRL4 lenses). There seems to be a correlation
with the HED popin. We adjusted the TCC with x-ray and laser. Performed transmission scans. |
|
Shift summary - night shift, posted by JP, Hauke, Samuele on 23 Mar 2023, 00:27 7x
|
22 Mar 2023, 23:30 Handover from late shift
Tasks for the night:
source point measurement
Sample alignment
timing
23 Mar 2023, 00:39 Source point measurement |
|
HED shift summary 23.-24.3., posted by Lisa Randolph on 24 Mar 2023, 21:46
|
8.2 keV, 1-2 bunches, 600uJ
23.3.
did timing runs and optimized the beamline alignment
Karabo was working very slow
continued with sample alignment
performed |