Solid attenuator arm 5 limit switch, posted by Antje Trapp on 30 Jul 2024, 10:38 6x
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On 27th of July, it was reported that arm 5 of the solid attenuator did not stay in 'out' position when retracted, but moved
in immediately again.
Reason was, that the limit switch for the 'out'-position did not trigger, and thus the actuator was in error state. Default for error |
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Issue, posted by Jan Gruenert on 18 Apr 2024, 23:19
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22h55:
HED informs that they have issues with the HED pulse picker in XTD6. It affects the ongoing experiment, but not to an extent that they cannot continue
the beamtime. |
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Diamond detector / DDM commissioning, posted by Wolfgang Freund on 26 Nov 2022, 10:40
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beam: 30 keV / 30 uJ
reduce to single bunch for insertion
put FEL imager in |
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end of shift summary, posted by Antje Trapp on 26 Jan 2024, 15:24
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Vertical motors of M3 now calibrated in first iteration and gemetrical neutral calibrated to 0 in motor settings!!!
New HED positions saved in XRO setpoints 'C'
euler calibration not completed for M3 |
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end of shift summary, posted by Antje Trapp on 25 Jan 2024, 14:57
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It was possible to align to HED in parasitic mode to seeding tests
mirror horizontal position (coating stripes) was optimized as far as possible under parasitic conditions
vertical motors calibration and EulerMDL calibration still to be done - collimated beam needed for that. |
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scanning for HED beam, posted by Antje Trapp on 24 Jan 2024, 14:00
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We found reflection of M3 on M2 popin, but could not locate the beam on HED PBLM nor HED_XTD6_SDLBM-1
scanning both horizontally and vertically around previously saved positions on M3 popin.
managed to get beam through to sdlbm-1. No beam found downstream of that. |
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Status, posted by Jan Gruenert on 28 Nov 2023, 19:36
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Ramp down activities completed by XPD. References:
SASE1
https://in.xfel.eu/elog/SASE1+technical+commissioning/2204
https://in.xfel.eu/elog/SASE1+technical+commissioning/2205
https://in.xfel.eu/elog/SASE1+technical+commissioning/2206
SASE2
https://in.xfel.eu/elog/SASE2+technical+commissioning/1206
...until...
https://in.xfel.eu/elog/SASE2+technical+commissioning/1209
SASE3
https://in.xfel.eu/elog/SASE3+technical+commissioning/2220
https://in.xfel.eu/elog/SASE3+technical+commissioning/2221
The
XFEL photon beam was switched off as planned at 19h00 sharp. |
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Shift summary, posted by Adam Round on 26 Nov 2023, 23:26
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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 corrected
with M2 Ry piezo stepping optimizing scatering intensity seen on JF4M
Optical laser delivery |
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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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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 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 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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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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Shift end, posted by Adam Round on 23 Nov 2023, 23:12
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Staff: AR, MS, DM, KK, RL, RdW
X-ray delivery
16.9 keV, up to 30 pulses and 1.1 MHz for alignment, 1 pulse for data collection
900 uJ
Beam down around 1h
Optical |
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Shift summary, posted by Jörg Hallmann on 23 Nov 2023, 22:15
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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) |
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Shift summary, posted by Raphael de Wijn on 22 Nov 2023, 23:18
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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
700-800 uJ
stable delivery
Optical
laser delivery |
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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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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 end, posted by Adam Round on 21 Nov 2023, 23:29
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Staff: AR, MS, DM, RL, RdW
X-ray delivery
16.9 keV, up to 30 pulses and 1.1 MHz for alignment, 1 pulse for data collection
stable delivery
Optical |
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Shift end, posted by Jayanath Koliyadu on 20 Nov 2023, 07:12
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X-ray delivery
1.3-1.7 mJ, 10.7 keV, 1-100 pulses, stable delivery
Optical laser delivery
None
Achievements/Observations |