Stability Issue, posted by Peter Zalden on 22 Feb 2023, 14:53 
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Instability observed today at 14:05, reported to PRC and BKR, including RC: We saw RMS jitter amplitude of up to 4 mm at FXE imager. The jitter was also
seen by the upstream XGM with 100 um RMS amplitude. So it is something from the source.
This instability is suddenly appearind/disappearing and was absent over night and started this morning at 7h to occasionally turn on. It appear |
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Issue, posted by Peter Zalden on 20 Sep 2023, 19:42
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Connerning the phase shifter adjustment after undulator gap scan via karabo:
At 19:30 FXE tested the scan change via Karabo with BKR. When the energy was changed with step size of 100 eV, the intensity of X-ray stays unchanged.
This means the phase shifter adjusment is corrrected and it is working now. |
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Issue, posted by Peter Zalden on 23 Sep 2023, 08:14
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FXE interlock in fault state. See photo attached with original error message from 6:53h. It cannot be reset by acknowledging. BKR is informed and they
are contacting MPS OCD. |
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Shift summary, posted by Peter Zalden on 24 Sep 2023, 09:16
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Summary for sept., 23rd
6:55 SPB just handed the beam over to FXE when the power glitch killed the interlocks and brought down ACC
11:30 After a lot of communication with PRC, Wolfgang Clement and DOC, the beam is back in SA1. We request change to 5.5 keV |
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Shift summary, posted by Peter Zalden on 24 Sep 2023, 09:24
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7:00 Power glitch during SPB operation - they were supposed to hand the beam back at 7:30h
Power glitch brought down FXE interlock system with beam stop monitor alarm that could not be reset
SA1 PPL running fine,
seems unaffected
9:10 Beam back in SA1, but still at 7 keV and cannot be changed by BKR to the req'd 5.8 keV, 94 kHz. |
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Shift summary, posted by Oliver Humphries on 05 Sep 2023, 22:33
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Received the beam from day shift, aligned to beam stop (low signal due to 4m air scatter, only 700uJ upstream)
ZYLA5 camera was
having issues, restarted without rotating to limit dropped trains.
1.2mm CVD solid attenuator in SA2 seems to be damaged
We
have trouble with our SEPS interlock after changes last week
We are supposed to be able to close the shutter (upstream of CRL3) without removing |
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Shift summary, posted by Oliver Humphries on 23 Sep 2023, 07:59
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Shift summary from Monday 18th 7am until Saturday 7am
MONDAY
Aligned beamline until the beamstop. Macro for recovering mirror positions worked well. Minimal fine
tuning required.
Changed energy to 8.4 keV to align spectrometes on Ni kalpha emission.
Characterized focal spot of the x-rays at |
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morning shift summary, posted by Natalia, Zhong on 05 Feb 2023, 12:32
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achievements:
- Viking spectrometer set up in 8th order around 1280eV and calibrated
problems: |
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summary of 23.09, posted by Natalia, Justina, Giacomo, Sergey, Ben, Eugenio, Teguh on 24 Sep 2023, 07:49
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Around 6:55 there was a power glitch. Power in the experimental hutch and rack room went down in SASE3, error message in Xray interlock system and no
power for PP laser.
During morning TS turned the power on and interlock issues were solved by DESY. SCS could restart large part of SCS systems, however got help |
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Status, posted by Naresh Kujala on 23 Mar 2023, 13:07
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Update for elog 99:
Now Gotthard timing is changed to new setting for 0.5 MHz.
attached screenshot with gothard timing setting |
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Status, posted by Naresh Kujala on 24 Mar 2023, 19:42
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Reply to elog103:
Spoke with Machine RC Thomas Wamsat and SQS.
Machine RC has some ideas to try. SQS have agreed that they can give 30 min for the machine to optimize the intensity. |
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Status, posted by Naresh Kujala on 26 Mar 2023, 13:26
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Machine RC Raimond informed PRC that there is an issue with the A4 module that needs to fix to have a continuous operation. To fix this they need
20 min.
Agreed with all instruments (SPB, SQS, and HED) that at 13:30hr machine will take over the beam for 20 min. |
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Issue, posted by Naresh Kujala on 28 Apr 2023, 11:21
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Issue with SA1_XTD9_PBLM and it is stuck.
Hi All,
After discussion with SPB, they will slightly move the PBLM screen where they don't see any distortion in the beam and are willing to continue |
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Issue, posted by Naresh Kujala on 28 Apr 2023, 13:00
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- Received a call from machine RC (Sergey Tomin)
- There is an issue with DOOCS to Karabo bridge, Tim and DESY experts are looking into this and came to the conclusion that it can't be resolved
now and need more time something like 1 week. (probably next week). Due to this PySpectrometer for SA3 is not available, as SQS would like to set up a |
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Attention, posted by Naresh Kujala on 28 Apr 2023, 16:08
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FXE (Fred) confirmed that they don't use beam for night shifts from Friday to Sunday.
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Issue, posted by Naresh Kujala on 31 May 2023, 17:35
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HED reported that they are unable to go 352 pulses and while changing/dailing the no. of pulses in the bunch Pattern it is showing the EPS is
limited to 300 pulses. It seems on the SA2_MAIN scene the link for bunch Pattern apparently using the macros scene, which is preventing it from going |
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Status, posted by Naresh Kujala on 05 Jun 2023, 08:28
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- SA2 photon beamline
Today morning found the CRL1: 5 and 6 arm and Pop-in 45-I are still IN. I have retracted them. |
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Status, posted by Naresh Kujala on 06 Jun 2023, 08:28
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SA2 photon beamline
- SRA position were 7 mm x 7 mm, MID reported they see the hallow of beam shadow at MID Popin
- I have closed the SRA to 3.5 mm x 3.5 mm |
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SA1 status, posted by Naresh Kujala on 22 Aug 2023, 15:52
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SA1 photon beam line status
- CRL1 lenses are in the beam.
- The shutter between XTD2 and XTD9 is closed (The reason is not known) |
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SA1 status, posted by Naresh Kujala on 22 Aug 2023, 15:56
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SA1 photon beam line status
- CRL1 lenses are in the beam.
- The shutter between XTD2 and XTD9 is closed (The reason is not known) |