After the 12 hour cryo failure last night, it was decided to exchange a faulty window with some reduced transmission at the injector laser today (see email by Andreas to xo-info yesterday). 

This was sucessful and the injector tunnel was closed today 16:40 and restart of the gun is ongoing. Tomorrow ramp up and SASE tuning.

The hope is that the large jitter and the poor SASE performance of last week can be now improved.  Beam delivery to instrument is expected on Thursday.