Shift summary for 27.9.2023

X-ray delivery

• 6.3 keV, 3-4 mJ/pulse, 1-352 pulses at 1.13 MHz

Optical laser delivery

• PP laser, 1030 nm, 226 pulses at 1.1 MHz, delivered from 9:45 on and was stabilizing over the day
• ns laser for rayleigh scattering, stabe delivery

Achievements/Observations

• Aligned MKB trajectory and optimzed background
• Scattering laser aligned with X-rays references and overlaped with particle beam
• Few runs with sucrose while trying to optimize injection

Issues

• PP laser was still drifting in energy and pointing, better stabilized towards the end of the shift
• Difficulties with injection, tried sevral times and did not improve much
• Slope in pulse energy along the pulse train, up to 40% change from first to last pulse
• Significant background AGIPD after correcting beam trajectory