Shift summary, posted by Romain Letrun on 09 Sep 2024, 06:52
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X-ray delivery
12.8 keV, 1 pulse, ~0.7 mJ
Achievements/Observations
Except for some downtime due to beam down, majority of the time was for data collection
6 windows of a chip collected, with |
Issue, posted by Peter Zalden on 08 Sep 2024, 20:30 
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We observe a continuous horizontal beam drift in SA1 after the M1 incident. It seems not to converge, so one can wonder where this will go....
Attached screenshot shows the M2 piezo actuator RY that keeps the beam at the same position on the M3 PBLM. These are about 130 m apart, The
drift is 1V/12 hours. 0.01V corresponds to a beam motion by 35 um. So the drift velocity is 0.3 mm/hour. In the past days this had at least once lead to |
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Shift summary, posted by Tokushi Sato on 08 Sep 2024, 06:44
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X-ray delivery
12.8 keV, ~0.8 mJ
Achievements/Observations |
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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 |
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Shift summary, posted by Chan Kim on 27 Aug 2024, 12:17
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X-ray delivery
12.78 keV, ~1.3 mJ
Optical laser delivery
800 nm laser for jet visualization
Achievements/Observations |
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Shift summary, posted by Tokushi Sato on 26 Aug 2024, 23:05
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X-ray delivery
-12.40 - 12.82 keV, ~1.3 mJ
Optical laser delivery |
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Shift summary, posted by Tokushi Sato on 25 Aug 2024, 22:37
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X-ray delivery
-12.40 - 12.82 keV, XDT9 XGM ~0.85 mJ, 3 hours interruption by vacuum issue on XTD9
Optical laser delivery |
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Shift summary, posted by Chan Kim on 24 Aug 2024, 23:09
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X-ray delivery
-12.40 - 12.82 keV, XDT9 XGM ~0.81 mJ@ end of shift
Optical laser delivery |
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Shift summary, posted by Peter Zalden on 23 Aug 2024, 08:48
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Used 9.4 keV with 94 kHz wed and thu nights. Received approx. 0.9 mJ with large fluctuations in pulse energy, however acceptable for the tasks below.
Achievements:
X-ray optics and goniometer aligned for next user experiment 5725
Transmission through Mono #2 recovered and calibrated to |
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Shift summary, posted by Raphael de Wijn on 22 Aug 2024, 23:15
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X-ray delivery
12.40 - 12.82 keV, ~1.1 mJ
Optical laser delivery |
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Shift summary, posted by Raphael de Wijn on 21 Aug 2024, 23:34
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X-ray delivery
12.40 - 12.82 keV, ~1.1 mJ
Optical laser delivery |
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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 Raphael de Wijn on 12 Aug 2024, 23:47
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X-ray delivery
11.56 keV, 202 pulses @0.5 MHz, ~0.9 mJ, stable delivery
Optical laser delivery |
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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 Raphael de Wijn on 11 Aug 2024, 23:07
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X-ray delivery
11.56 keV 202 pulses @0.5 MHz, ~1.0 mJ
some downtime due to fire alarm in the tunnel |
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Shift summary, posted by Romain Letrun on 11 Aug 2024, 14:33
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Summary 06.08 - 10.08
X-ray delivery
9.3 keV, 1-352 pulses @ 1.13 MHz and 564 kHz, 1.4-1.8 mJ
11.56 keV 1-352 |
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Shift summary, posted by Wonhyuk Jo on 11 Aug 2024, 02:15
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Found the spatial overlap on the Suna microscope with Zyla.
Found the SDL motor position giving 200 fs time difference between the upper and lower branches.
The encoder and current values of DC2_CASZ and DC1_CASZ are not 100 % correlated. |
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Attention, posted by Andreas Galler on 11 Aug 2024, 00:13
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EPS Interlock change for Mode30:
the 3 HIREX Interlock conditions had been disabled
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Issue, posted by Romain Letrun on 10 Aug 2024, 07:19
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The SASE1 HIREX interlock is not working as expected.
At the position 'OUT' (step 2 in HIREX scene) and while none of the motors are moving, the interlock SA1_XTD9_HIREX/VDCTRL/HIREX_MOVING
is triggered, which prevents the use of more than two pulses. |
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Shift summary, posted by Jörg Hallmann on 10 Aug 2024, 01:17
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Found the delay time from upper and lower branches of SDL with a frosted-YAG.
The upper branch is -512.8 and the lower branch is -513.28.
The delay time difference is about 500 fs. |