X-ray delivery

• 9.3 keV, 1400 uJ photon flux

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 GV for ~2 hours, hit rate is ~0.0003 (from Karabo TST/SFX/MONITOR/sfx, 1 = 100 %)
• Measured PSI with different condition as below :
  1) without dryer : as we observed sample deposited on the tube connected to the inlet of dryer yesterday. Black tube is coated to avoid any deposition of particle on the wall)
  2) without both lasers : to avoid any heat effect if laser produces heat
  3) without EtOH : EtOH can disolve PSI crystals

Issues

• PSI sample is not delivered well to the interaction region.
• When adjust the skimmer at first, I did not run liquid flow. After the skimmer distance is adjusted to the reference pressure on Pressure at injector position, we started run sample and it increased pressures not only on pressure next to the skimmer and injector inlet, but also the pressure of IRU chamber. So it triggered the valve at upstream of IRU chamber (SPB_IRU_VAC/VALVE/VALVE_INLINE_1) to close. It is solved by adjusting skimmer gap again while the liquid flow is running.

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