Ångström Source Karlsruhe (ANKA), a new 2.5GeV synchrotron light source, is under construction at the Research Center Karlsruhe, Germany (FZK) [1]. This source is dedicated to the fabrication of microstructures (LIGA-technique) and X-ray analysis. It has a circumference of 110.4m and an emittance of 50nm rad can be reached. ANKA has four long (6m) and four short (2.2m) straight sections. One short section hosts the injection, two the RF cavities. One short section and the four long sections are then free for installation of insertion devices. The injector is a 53MeV microtron and a 500MeV booster synchrotron with a repetition rate of 1Hz.

ANKA is a 2.5 GeV synchrotron radiation storage ring under construction at the Forschungszentrum Karlsruhe in Germany. The injector system will consist of a pre-injector with an end energy of 20 to 50 MeV and a 0.5 GeV booster synchrotron. In the following three different concepts for designing the booster synchrotron are compared.

Calculations show that the injection into the storage ring ANKA is optimal when three kickers distributed over one quadrant are used. The maximum deflection angle is 3.0 mrad resulting in a closed orbit deviation of 19 mm at the septum. The magnetic length of the kickers is 0.25 m. The septum is an active one positioned outside the vacuum. The tracking calculations based on DIMAD show that an injection efficiency of >90% can be achieved. The energy acceptance of the injection process is larger than 1%.