Issue, posted by Romain Letrun on 15 Mar 2024, 07:08 
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There are now two watchdogs for the XTD2 attenuator running at the same time
SA1_XTD2_WATCHDOG/MDL/ATT1_MONITOR020
SA1_XTD2_OPTICS_PROTECTION/MDL/ATT1
that are configured differently,
which results in different pulse limits (see attachment). |
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Issue, posted by Romain Letrun on 30 Mar 2024, 06:59
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DOOCS panels are again incorrectly reporting the FXE shutter as opened when it is in fact closed. This had been fixed after it was last reported in February
(elog:24), but reappeared now. |
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Shift summary, posted by Romain Letrun on 09 May 2024, 07:14
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X-ray delivery
11.56 keV, 1-352 pulses @ 1.13 MHz, 2.6-3.1 mJ.
Average intensity slowly decaying through the night.
Quite some
intensity gradient through the train (~35%).
Optical laser delivery |
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Shift summary, posted by Romain Letrun on 10 May 2024, 07:06
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X-ray delivery
11.56 keV, 1-352 pulses @ 1.13 MHz, 2.6-3.1 mJ. Stable delivery.
Intensity gradient with long train could not be reduced by
BKR.
Optical laser delivery |
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Shift summary, posted by Romain Letrun on 11 May 2024, 07:20
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X-ray delivery
11.56 keV, 1-352 pulses @ 1.13 MHz, 2.4-3.1 mJ. Stable delivery.
Intensity gradient with long train better than previous shifts
(~20% drop).
Optical laser delivery |
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Shift summary, posted by Romain Letrun on 12 May 2024, 07:35
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X-ray delivery
11.56 keV, 1-352 pulses @ 1.13 MHz, 2.4-3.1 mJ. Stable delivery.
Intensity gradient with long train now slightly less than
20%.
Optical laser delivery |
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Shift summary, posted by Romain Letrun on 13 May 2024, 10:36
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X-ray delivery
11.56 keV, 1-197 pulses @ 564 kHz, 2.4-3.1 mJ.
Beam down a bit over
1 hour due to accelerator interlock problem.
Optical laser delivery |
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Shift summary, posted by Romain Letrun on 14 May 2024, 11:49
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X-ray delivery
11.56 keV, 1-197 pulses @ 564 kHz, 2.6 mJ.
Optical laser delivery
No PP laser output after shift change.
Achievements/Observations |
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Shift summary, posted by Romain Letrun on 26 May 2024, 00:23
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X-ray delivery
6.0 keV, up to 202 pulses at 564 kHz and 101 at 282 kHz, 0.8-1.6 mJ
Low pulse energy after beam handover. Improved around
10:00.
~1.5 hour downtime due to issue with A5.
Several timing jumps of up to 1.5 ps visible on BAM and confirmed by X-ray/optical |
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Shift summary, posted by Romain Letrun on 26 May 2024, 23:23
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X-ray delivery
6.0 keV, up to 202 pulses at 564 kHz, 1.8-1.9 mJ.
Stable delivery except for downtime at start of shift (until 7:15) and two
more hours in the morning.
Optical laser delivery |
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Shift summary, posted by Romain Letrun on 27 May 2024, 23:33
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X-ray delivery
6.0 keV, up to 202 pulses at 564 kHz 1.3-1.8 mJ.
Decaying intensity through the day. Recovered once at 15:15 and slowly decaying
again after that.
Optical laser delivery |
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Shift summary, posted by Romain Letrun on 04 Jun 2024, 23:38
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X-ray delivery
7.0 keV, up to 202 pulses at 564 kHz, ~1.7 mJ.
Number of pulses initially limited to 178. Promptly addressed by BKR.
Optical laser delivery |
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Shift summary, posted by Romain Letrun on 05 Jun 2024, 23:22
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X-ray delivery
7.0 keV, up to 202 pulses at 564 kHz, 1.6-1.9 mJ.
Average pulse energy tuned up to 1.9 mJ at 14:45, but slow continuous decay
after that down to 1.7 mJ at the end of the shift.
45 minutes downtime in the morning and another 15 minutes to reset the IBFB later on, as |
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Shift summary, posted by Romain Letrun on 27 Jul 2024, 23:42
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X-ray delivery
- 9.22 and 11.0 keV, 1-352 pulses @ 1.1 MHz, 600-1400 uJ.
- Large intensity gradient with long trains (>70% drop with 352 pulses @ 1.1 MHz). |
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Shift summary, posted by Romain Letrun on 28 Jul 2024, 23:34
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X-ray delivery
11.0 keV, 1-352 pulses @ 1.1 MHz, 600-1100 uJ.
Even larger intensity gradient with long trains than yesterday.
Optical laser delivery |
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Shift summary, posted by Romain Letrun on 29 Jul 2024, 23:22
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X-ray delivery
11.0 keV, 1-351 pulses @ 1.1 MHz, 300-1100 uJ.
Continuously decaying average intensity through the day.
Large intensity
gradient with long trains.
Optical laser delivery |
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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 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 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 |
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Shift summary, posted by Romain Letrun on 10 Sep 2024, 07:26
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X-ray delivery
12.8 keV, 1-20 pulses at 47 kHz, 500-700 uJ.
Pulse energy constantly decaying since ~3:00.
Achievements/Observations
Continuous SFX data collection since 00:10.
Issues |