PFC/JA-92-26 Growth and Saturation of Stimulated Beam Modulation in a Two-Stream Relativistic Klystron Amplifier
نویسنده
چکیده
A novel two-stream relativistic klystron amplifier (RKA) is presented in which the amplification of stimulated beam modulation is achieved via the unstable two-stream interaction rather than the use of passive cavities. After a calculation of the limiting current, the amplification and saturation of the stimulated beam modulation are analyzed using a cold-fluid model and particle-in-cell simulation. Good agreement is found between theory and simulation in the linear regime. Almost fully modulated intense relativistic electron beams are obtained at saturation. PACS numbers: 41.60.Cr, 41.75.Ht, 52.75.Ms, 52.25.Wz
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