Abstract
Summary form only given, as follows. The electric field distribution in high power trigatron was analyzed as the polarity and shape of electrodes change. An analysis method which uses the concept of finite element flux-corrected transport (FEM-FCT) is suitable for a complex electrode and shortens simulation time because it reduces the occurrence of useless meshes. The switching characteristic of pulse charged trigatron is changed by the trigger voltage polarity and the main gap voltage polarity. The four polarity combinations, two homopolarity and two heteropolarity, are possible. Among the above four combinations, the heteropolarity configuration with the positive trigger and negative main gap polarity is best in terms of switching characteristic. This paper analyzes the transient switching characteristic of high power trigatron with the positive trigger voltage and the negative main gap voltage by FEM-FCT.
Published Version
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