late shift summary, posted by Giuseppe Mercurio and Sergii on 02 Mar 2023, 22:58
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achievements:
knife edge scans of OL to find lens position corresponding to the smallest beam size
knife edge scans of FEL to determine
the position to proceed for spatial overlap
liquid jet was set up and it's running since afternoon
measured x-ray absortion via |
Re: Shift summary, posted by Giuseppe Mercurio on 05 May 2023, 07:23 
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Actually, it looks like the sync was lost shortly before 23h last night as the jitter went to 0fs and recovered at 1am when a new sync search probably
started.
Giuseppe |
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morning shift summary, posted by Giuseppe Mercurio on 05 May 2023, 14:56
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achievements
with help from LAS OCD, we got the PPL synchronized again with optical lock and close to the initial t0 on the sample
we found
t0 on the sample again
collected data with magnetic field
initial setup of damnit/amore for semi-automatized data processing
problems |
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night shift summary, posted by Giuseppe Mercurio on 06 May 2023, 06:53
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achievements:
- measured delay scans at sample tilted by 20 degree
problems: |
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night shift summary, posted by Giuseppe Mercurio on 06 May 2023, 06:53
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achievements:
- measured delay scans at sample tilted by 20 degree
problems: |
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morning shift summary, posted by Giuseppe Mercurio on 06 May 2023, 14:42
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achievements
finished recording dataset at 20degree
changed for sample with smaller grains at normal incidence and moved DSSC to 1.2m
OL
induced some change of the sample but the scattering ring remains and then stabilize
started collecting data
problems |
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shift summary, posted by Giuseppe Mercurio on 07 May 2023, 06:52
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achievements:
measured delay scans on 16 nm samples at different magnetic fields (4 runs) before the problem below appeared
problems:
scroll pump of the FFT degraded, rough vacuum got worse, this led to pump in error state and interlock valves. The scroll pump was replaced, |
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morning shift summary, posted by Giuseppe Mercurio on 07 May 2023, 14:47
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achievements
exchanged He dewar and managed to cool down the sample again after vacuum issue last night
started collecting additional scattering
data with alternating magnetic field on large nanoparticles sample
problems |
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Giuseppe, Justine, posted by Giuseppe Mercurio on 06 Sep 2023, 06:35
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achievements:
- we found optimum hRIXS settings for 1020 eV but moving the detector arm
- we found optimum hRIXS settings for 920 eV but moving the detector arm, and then grating pitch and detect arm |
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Morning shift summary, posted by Giuseppe Mercurio on 01 Oct 2023, 14:48
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# Morning shift summary
Giuseppe, Martin
* achievements |
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Issue, posted by Frederik Wolff-Fabris on 13 Feb 2023, 19:02
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SA3 SCS exit slit: the upper blade was detached from the motor and fall into closed position. Maurizio V. and F. Wolff-Fabris tried to move it out
of the beam by placing spacers to hold the blade up.
Bottom blade was moved down with the motors. Currently both motors are disconnected. |
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SA2 status, posted by Frederik Wolff-Fabris on 16 Feb 2023, 14:04
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Data for the Horizontal jitter at the HED Pop-In was observed during beam delivery on cw05 (03-05.Feb) and cw07 (14-16.Feb) (see attached pictures).
We have a similar base jitter in both periods of beam delivery to HED, ranging from a minimum of 50-60um to around 80-100um in both operational
weeks. |
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SA2 status, posted by Frederik Wolff-Fabris on 11 Mar 2023, 12:46
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The SA2 XTD1 XGM is current offline since Saturday morning.
Yesterday, Friday, it already started to present communication problems ( https://ttfinfo.desy.de/elog/FileEdit?file=/XFELelog/data/2023/10/10.03_a/2023-03-10T19:06:29-00.xml&xsl=/elogbook/xsl/elog-fileform.xsl&mode=edit
) and today it became clear a Hard drive is broken and need to be exchanged. |
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Issue, posted by Frederik Wolff-Fabris on 04 Apr 2023, 08:37
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TUE 08:30AM:
The SA3 Cell 17 & 18 Phase shifters do not move and encoders are damaged. A ZZ is needed to exchange the encoders. Instruments are informed
and access will take place Tuesday morning. Machine has separated the north branch. |
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SA3 status, posted by Frederik Wolff-Fabris on 12 May 2023, 16:12
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The SA3 EPS power limit at the Big brother was disabled to allow photon energy scans in SQS (due to Kr resonance at XGM, invalid power values are generated
and then beam is blocked);
Action was performed by Lars F. (RC), Michaela Petrich (PRC) and F. Wolff-Fabris (XO) with Accelerator RPO. |
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Status, posted by Frederik Wolff-Fabris on 23 Jul 2023, 17:28
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Photon Activities by XPD colleagues in SA3 are concluded on Sunday 23.07 at 17:00. The photon commissioning activities are concluded for this
week.
The PRC agrees with RCs to handle beam back to BKR for further tuning activities while touching common nobs. |
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Status, posted by Frederik Wolff-Fabris on 14 Oct 2023, 09:48
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Machine went down overnight (4AM and 6AM) and could not be properly restarted by BKR.
Ongoing tuning is proceeding with RC onsite since 6AM; Instruments are informed and in direct contact to BKR.
Status 09:45AM: SA1 ~3mJ; SA2: ~500uJ; SA3 being restarted |
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Shift summary, posted by Fernando Ardana on 28 May 2023, 23:15
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User proposal 3273:
X-ray delivary
We use several deliveraly modes:
Continous single pulse
Continous 30 pulses
POD:
1 pulses / 30 pulses
All works fine, FXE is sastificed with X-ray delivery
DA:
Few |
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Shift Summary Feb 25th, posted by Felix Brausse on 26 Feb 2023, 01:37
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Aligned both branches of the split-and-delay line.
Brought the beam into the experimental hutch to image it on the x-ray eye; the
sample hexapod is not moving (again?); the values keep changing, but the device clearly does not move
PLEASE INVESTIGATE TOMORROW
Looked at the beam on the Zyla (Zyla is still in)
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Shift Summary Feb 26th, posted by Felix Brausse on 27 Feb 2023, 02:10
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Moved out MONO, aligned SDL without MONO
Looked at both beams on DES
Struggled to get the same beam size with SDL inserted compared to direct beam (~8 um); fixed by adjusting slits |