Abstract
An improved design of horizontal stripline kicker for transverse feedback system has been replaced in January 2017. A rapid surge of vacuum pressure near the old horizontal kicker was observed when we tested the high current operation in TPS storage ring in April 2016. A burned vacuum feedthrough of the horizontal kicker was discovered during a maintenance shutdown. The improved design has reduced the reflection of the driving power from horizontal feedback system and the beam induced RF heating. Based on the experience learned from this improved design of horizontal stripline kicker, we also work out the improved design for the vertical kickers as well. The major modifications of the improved designs for both the horizontal and the vertical stripline kickers are described. The results of RF simulation performed with the electromagnetic code GdfidL are also reported.
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