SPB/SFX 7955 Day 3

X-ray delivery

• up to 202 pulses per train (~1.4 mJ pulse energy), 0.5 MHz.

• One longer down toward the end of the shift

Optical laser delivery

• 420nm used for sample excitation. timed to 1ps with water jet interaction

Achievements/Observations

• x-ray beam de-focused to a few um for data taking

• PP laser aligned and timed

• runs for 1ps, 100ps and 100ns pumped data sets

• hit rate much better (even > 10%) than previous day with small crystals

Issues

• a lot of nozzle exchange in the morning

• DAMNIT issue with too many queued jobs – some of the earlier jobs timed out