Pulsed septum for the LNLS injector

The design and construction of a pulsed thin septum for the LNLS UVX injection system are presented. The injection system uses two septa and three kickers to inject the 120 MeV electron beam from the Linac into the storage ring. The present system uses two DC septa. A pulsed thin septum is under construction in order to reduce the septum wall thickness from the present 5.5 mm to 1.5 mm, thus improving the injection efficiency. A prototype has been built with a 1.5-mm-thick copper septum wall which is now being measured. The magnet is driven by a 1.6-kA half-sine wave current pulser. It is constructed of a 0.4 m manganese-zinc ferrite yoke and is being tested in passive and active configurations. The magnet will be housed inside a vacuum and has been designed to operate at up to 200 MeV.