Investigation of the ANKA injector

The 500-MeV ANKA injector consisting of a 53-MeV racetrack microtron pre-injector, a 500-MeV 26.4-m circumference booster synchrotron, and two transfer lines have been constructed and commissioned by the company Danfysik with assistance from the University of Aarhus. The article presents the conclusions of a thorough characterization of both the racetrack microtron and the booster synchrotron. In particular, the properties of the electron beam are characterized in detail throughout the entire 1-second cycle of the injector. The results are employed to examine where and why beam losses do occur, suggesting how to improve the performance of the injector in the future.