Shift summary, posted by Tokushi Sato on 01 Oct 2024, 02:39
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X-ray delivery
6 keV, ~2.8 mJ, continuous beam drift in both direction
Optical laser delivery |
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Shift summary, posted by Chan Kim on 24 Oct 2024, 06:51
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X-ray delivery
12.4 keV, ~1.4 mJ
Achievements/Observations
Beam is through the inline mic
Flight tube vacuum optimized
Beam trajectory up to JF4M manually optimized
EHC |
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Shift summary, posted by Chan Kim on 25 Oct 2024, 05:51
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X-ray delivery
12.4 keV, ~1.4 mJ
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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 Raphael de Wijn on 03 Nov 2024, 00:00
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X-ray delivery
12.5 keV, ~1.6 mJ
Achievements/Observations: |
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Shift end, posted by Adam Round on 31 Mar 2024, 23:20
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X-ray delivery
12.72 keV, 10Hz, ~1.4 mJ/pulse, some beam drift in the horizontal direction observed (probably mirror related)
Optical
laser delivery |
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Shift end, posted by Marcin Sikorski on 08 Apr 2024, 06:37
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In-house/commissioning beam time summary night 5
X-ray delivery:
12.7 keV, up to 128 pulses at 0.5MHz, ~1.3 mJ, one very short beam down. |
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Shift end, posted by Adam Round on 12 Sep 2024, 23:48
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X-ray delivery
8.951 keV, 1.6 mJ
Achievements/Observations |
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Shift end, posted by Adam Round on 13 Sep 2024, 23:17
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On Shift: TS, FT, CK, AR, PS
X-ray delivery
8.951 keV, 1.6 mJ up to 200 pulses at 0.5 MHz (intesity drops off at end of train) |
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SASE3 end of shift summary, posted by Antje Trapp on 22 Jul 2024, 15:27
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this morning, ZZ was done together with Sylvia Huynh (EEE) to solve softmono pre-mirror motor issue https://redmine.xfel.eu/issues/177392
The issue was solved and also mechanical functionality of the stage was checked.
After ZZ, the beamline remained interlocked. Hutches will be searched and closed tonight to allow final checks on Tuesday |
SASE2 end of shift summary, posted by Antje Trapp on 22 Jul 2024, 15:20 
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Beam is now aligned back to HED for hand-over to Naresh (see picture)
points achieved:
-vibometer measurements on M2 at high energy, 2,1 and 3 mrad setting |
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SASE1 MIRROR MOTORS CALIBRATED, posted by Antje Trapp on 11 Apr 2024, 21:54
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Dear all,
we calibrated the mirror vertical motors to their geometrically neutral.
Please be aware that saved values for beamline settings may no longer be valid. This mainly applies to the vertical motor positions, but will |
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SA2 status, posted by Jan Gruenert on 20 Apr 2024, 23:58
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20.4.2024 / 22h51:
DOC informed PRC that the SASE2 topic broker had to be restarted.
The EPS power limit was reset by PRC to the previous value of 40 W. |
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SA2 status, posted by Frederik Wolff-Fabris on 04 Nov 2024, 15:07
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Dear MID colleagues, Svitozar (PRC), Bolko and Shan (RCs),
This morning we faced the situation where MID was limited to 400 pulses (mode M) via the EPS signals. The current RF window set at the machine
allows to the requested 450 pulses. |
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SA1 status, posted by Frederik Wolff-Fabris on 31 Jan 2024, 11:24
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A ZZ is taking place today, 31.01 at 11:30, in XTD9 to verify and fix the M3 Pop-in screen which is currently blocking the beam. It is not
yet clear if this is an electrical or mechnical problem.
** Update 13:05: ZZ intervention is finished and successful. A mechanical issue due to a loose coupling between motor and spindle was fixed. |
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SA1 status, posted by Peter Zalden on 28 Feb 2024, 08:57
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5.61 keV setpoint in SA1 was confirmed to correspond to 5.660 keV (+/- 0.003 keV), see attached.
The user expt #5644 can proceed as planned. |
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SA1 status, posted by Peter Zalden on 21 Sep 2024, 09:50
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The xray beam drifted significantly on wednesday and thursday (18. and 19.) but then was not drifting on friday (20.), see attached trendline of the
M2 actuator that kept the beam at fixed position on M3.
Today also seems that beam pointing is stable. But unclear what happened earlier... |
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SA1 status, posted by Peter Zalden on 28 Oct 2024, 09:58
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This is to report some findings during operation that should be looked into (mostly to avoid in the future, because both negatively affect data quality
of the user expt at FXE):
At the moment, the 99:1 mode affects 4 to 5 pulses out of 100 in SA1, see first screenshot that shows in the top right the IPM reading |
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M3 calibration, posted by Kelin Tasca on 10 Apr 2024, 17:03
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- M3 TX moved to 0 in steps of 1 mm and beam on FXE Pop-In corrected with M3 RY (+) and M2 RY
- Started calibration with M3 Rz in steps of 0.5 (+) and corrected with M2 RY and RZ to find a position with a minimum of parasitic motion
- Iterations with M3 TY |
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M1 Rz damaged - DO NOT MOVE!!!, posted by Antje Trapp on 30 Aug 2024, 13:02 6x
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What has happened:
During euler motion calibration of M1, we were driving the vertical motors by a few mm back and forth. At some point, the Rz motor went into error,
as we attempted to go further in negative direction. Resetting the axis several times did not solve the problem. The vertical motors were then moved to |