is continuously ongoing. In Spring 2006, a new intermediate stage was taken into operation
(PITZ1. 6), including a new gun cavity that has been tuned and commissioned. Three new
emittance measurement systems were installed along the beamline. Together with the
available booster cavity, they allow to study the emittance conservation principle. In the
paper, the results of the high power run in autumn 2006, and the results of the …