THE RF-POWER-CONDITIONING-SYSTEM FOR THE FLASH RF MAIN COUPLERS

The main RF-Couplers for 1.3GHz TESLA-Type cavi- ties in the FLASH linac need several preparation and pro- cessing steps. The RF processing is usually done on cou- pler test stands (2 couplers pairwise), on a single coupler together with a superconducting cavity in the horizontal cavity test stand, on the module test stand (up to 8 cavities) or finally in FLASH. In FLASH one or more modules are connected to one klystron and conditioned together. There- fore the software was forked several times and merged dur- ing the last FLASH shutdown into one version. This isflex- ible enough to handle all these different test setups, without additional programming for IO hardware or data handling. The system is based on LabView, DOOCS (1) and Linux operating system. The working principle is shown, includ- ing a possible outlook for the XFEL cavity production and operation.