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  OPERATION-2025 logbook, Contact: F.Wolff-Fabris, A.Galler, H.Sinn  Not logged in ELOG logo
Message ID: 77     Entry time: 31 May 2025, 07:30
Author: Yoonhee Kim 
Group: SPB 
Subject: Shift summary 

X-ray delivery

  • 9.3 keV, 2000 uJ at the beginning, 1600 uJ after 2AM. There was downtime around 15 minutes due to gun issue.
  • FXE used the beam until 23:30.

Optical laser delivery

  • ns laser for particle illumination inside the chamber,
  • another ns laser to visualize the tip of capillary on top of the chamber

Achievements/Observations

  • Measured PSI
  • Hit rate is extremely low. We could see some peaks from AGIPD preview, but it was difficult to see it from the hit finder.

Issues

  • Sample capillary line was clogged twice.
  • From the images of capillary tip and particle scattering (rayleigh / mie scattering), it seems it works fine. But hit rate is too low.

Instrument status

  • AGIPD HV off.
  • AGIPD gate valve closed and pinned.
  • Attenuators set to thickest diamond.
  • Vacuum valves closed.
  • AGIPD breaks enguaged
  • ns Lasers off
  • HIREX is out
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