SPB/SFX In-house research 4978 shift 2

X-ray delivery

• 9.3 keV 202 pulses / train, relatively stable intensity 2.0 mJ / pulse at start of train, ~30% decrease in intensity across train
• BKR made an attempt to inprove slope around 18:00, small improvement but degraded again over time
• One short interruption

Optical laser delivery

• PP laser 1030nm 3rd harmonic (343nm) @ 282 kHz, 101 pulses / train

Achievements/Observations

• PP laser timing for 10nm time point
• PP laser / x-ray overlap with buffer + caged compound
• de-oxy Myoglobin + caged compound data with and without PP laser activation of caged compound

Issues

• several nozzle changes requried throughout the day
• significant sample debris on windows from nozzle 'events' requried mid-run shroud and window clean

Instrument status

• AGIPD HV off
• Shutters closed
• in-line vacuum valves closed.

To do for next shift

• shroud / catcher clean needed
• alignment etc.
• in-line crystallisation project