Analysis of the RF Test Results from the On-Going Cavity Production for the European XFEL

The main Linac of the European XFEL will consist of 100 superconducting accelerator modules, operated at anaverage design gradient of 23.6 MV/m. The fabrication by industry (which includes chemical surface preparation) ofthe required 800 superconducting cavities is now in full swing, with approximately 400 cavities having beendelivered to date. In this interim report, we present an analysis of the RF acceptance tests amassed so far