We measured the laser background rate in the XUV detector.
The voltages applied were +300V at the MCP front, +2250V at the MCP anode.
Trigger threshold at ca. 40 mV.

At a laser repetition rate of 3.568 MHz we got the following background rates:

 30 mW laserpower ->  40 kcps
 45 mW laserpower ->  70 kcps
100 mW laserpower -> 125 kcps laserpower