ID |
Date |
Author |
Group |
Subject |
281
|
30 Jul 2023, 02:02 |
Ulrike Boesenberg | MID | Shift summary |
9.3 keV, 1-35pulses, stable delivery ~600uJ
*General alignment of MID branch to the DES
*Commissioning of CRL2 (MID_XTD6_CRL) together with EEE after change to close loop in the maintenance period and alignment of lenses, characterization of beamsize using the X-ray eye at the sample position.
*Alignment of spectrometer in DES |
283
|
30 Jul 2023, 23:06 |
Ulrike Boesenberg | MID | Shift summary |
9 and 10keV beam, up to 30 bunches, significant drop in intensity in the morning and in the evening.
Activities:
Commissioning of EH MIRR device
Preparation of user experiment at 10keV with lenses and monochromator |
294
|
09 Aug 2023, 01:42 |
Jörg Hallmann | MID | Shift summary |
- after alignment of the beam, the main topic of the day were flatfields for the AGIPD with various settings
- corresponding darks have been taken in addition
-
- it was challenging to generate proper flatfield intensities on the detector (1photon peak equally high as the 0photon peak) due to the low intensity (750uJ)
- shift crew received a warning of the machine that using the required 352 pulses for longer time could lead to an overheating of components in the machine -> flatfields were generated by using 172 pulses and sticking them together by shifting the delay
|
295
|
10 Aug 2023, 01:31 |
Jörg Hallmann | MID | Shift summary |
- finalized the flatfields of the AGIPD at 0.5 MHz
- optimized the performance of the beam (now 850 - 950 uJ)
- measured flatfield and darks for the Jungfrau detector
- optimized the instrument alignment of FEL beam and ALAS to the center of rotation
|
298
|
11 Aug 2023, 01:44 |
Jörg Hallmann | MID | Shift summary |
alignment checks of the CRL2 device as well as the Mono - continuation of both devices together planned for tomorrow
flatfelds for EPIX & AGIPD (needed to be redone because of too low intensity during the previous measurements)
installation of the levitation device and first test measurements
|
300
|
12 Aug 2023, 01:32 |
Jörg Hallmann | MID | Shift summary |
measured various sample using the levitation device
issues:
during the change of the sample detector distance, the AGIPD chiller "Julabo" switch itself off and went into error - on & off procedure solved the problem and need further investigation
|
321
|
25 Aug 2023, 06:20 |
Johannes Moeller | MID | Shift summary |
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) doesn't change the laser delay, but LA2_LAS_PPL/CTRL/TRGDLY does. The values is not able to implemented into the Scantool since it doesn't have target position.
- Photon energy spectrum was measured w and w/o mono with Gotthard at DES.
- Nano focusing lens is aligned. The beam size is about 20 um X 20 um. Very stable pointing at the sample position.
|
324
|
26 Aug 2023, 02:07 |
Felix Brausse | MID | Shift summary |
Shift summary the 25th of Aug
- Found laser and X-ray spatiotemporal overlap with Bi diffraction peak
- Found a diffraction peak from STO nano particles
-
X-ray dose test is ongoing
-
EXP_UPP_T10 was stuck at the hardware limit but the encoder value shows different values.
-
Cryo Failure at 1:30 am; BKR called and predicted ~20 hrs of downtime
|
328
|
28 Aug 2023, 02:14 |
Wonhyuk Jo | MID | Shift summary |
Shift summary for 28th of Aug.
- Realigned the center of rotation.
- MID took the seeded beam at about 120 uJ around 4 p.m. after the long intervention.
- Cross-checked the time zero with Bi 222 diffraction peak.
- Searching and collecting diffraction patterns from a single nanocrystal.
The user will continue to find the optimized condition for the flux of X-ray and Laser.
|
330
|
29 Aug 2023, 03:14 |
Wonhyuk Jo | MID | Shift summary |
Shift summary for 29th of Aug.
- Conducted Time-resolved Bragg CDI experiment using 3rd harmonic pump laser.
- Collected coherent diffraction patterns from Perovskite-oxide nanocrystals for various time delay and laser fluence.
- Checked the correlations between the XGM, diamond detector in SDL, and two Jungfrau detectors running on interleave mode. |
372
|
29 Sep 2023, 00:35 |
Johannes Moeller | MID | Shift summary |
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
*damage and dynamic studies on HGW with 1 and 350pulses and different attenuation and different temperatures
HXRSS tuning is ongoing during the night, we leave the beam on the MID spectrometer and the zoom session open for tuning.
|
378
|
01 Oct 2023, 02:00 |
Johannes Moeller | MID | Shift summary |
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 in the evening and relaxing the bender, with 2-3 times better contrast determined. Please don’t touch CRL2 from now.
- loaded new sample in the evening, but insufficient vacuum in the user chamber prevents opening the valve to the AGIPD first
|
393
|
18 Oct 2023, 02:09 |
Alexey Zozulya | MID | Shift summary |
Shift summary (p4239)
Achievements:
- HXSS beam at 10.5 keV at 400 uJ pulse energy
- MID beam alignment to DES
- aligned DES spectrometer for C220 reflection on Gotthard and flight path;
Issues:
- Seeding crystal was stuck in parked position and could not be inserted back (late evening); to be investigated via ZZ access tomorrow |
405
|
23 Oct 2023, 01:10 |
Alexey Zozulya | MID | Shift summary |
Milestones:
*Finish measurement program on the STO sample at room temperature
*Check mono fpitch and energy rocking curve
*Darks for AGIPD and JF
*take out mono, CRLs etc from the tunnel
Beam delivery:
*Beam was not available from 11:30 to 19:30. Returned to good conditions back at ~2mJ, 10.5keV, 15bunches
|
428
|
01 Nov 2023, 02:22 |
Johannes Moeller | MID | Shift summary |
- 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:
Mirror M2 needs 30min to move from SASE to Mono position |
430
|
02 Nov 2023, 02:28 |
Johannes Moeller | MID | Shift summary |
- 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
|
434
|
04 Nov 2023, 02:29 |
Johannes Moeller | MID | Shift summary |
- 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
|
437
|
05 Nov 2023, 04:08 |
Angel Rodriguez Fernandez | MID | Shift summary |
- stable SASE beam delivery with 1mJ pulse energy
- we took data for different optical laser excitation fluences and delays
- we changed from the optical lock to the electronic lock to measure also longer delays.
|
453
|
22 Nov 2023, 10:19 |
Johannes Moeller | MID | Issue |
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.
|
454
|
22 Nov 2023, 22:48 |
Johannes Moeller | MID | Shift summary |
*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
*analysis and update of Sample to detector distance and geometry
*ScannerX of the FSSS is crashing very! frequently.
|