X-ray delivery

• 9 keV 1 to 165 pulses ~ 300 mj per pulse - stable delivery during the day

Optical laser delivery

• ns lasers for illumination only

Achievements/Observations

• Focus alignment
• found illumination / shield (100 micron) conditions to optimise background on detector
• observed that the flourecence signal on the diode was very low and this appears corelated with drift in the focus - after focus optimisation signal was again visible
• several runs collected with varying attenuation with the aim to try to corelate flourecence signal on diode with beam intensity

Issues

• Too high background from sample at full transmission required exchange of copper shield form 50 to 100 microns
• disc detaching from motor spindle (twice) - first time disc blocked gate valve, second bolt and washer are in the gate valve mechanisme space
• in both cases detector had to be warmed to allow venting.