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Title: Development of a steady state simulation code for klystrons
Tutor: Palumbo, Luigi
Keywords: klystron
Issue Date: 2011
Abstract: The design of klystrons is based on the intensive utilization of simulation codes, which can evaluate the complete beam-cavities interaction in the case of large signals. In the present work, we present the development of a 2-D steady state simulation code that can self-consistently evaluate the effects of the electromagnetic field on the particles and of the particles back on the field. The algorithm is based on the iterative solution of the power balance equation in the RF structures and it allows determining the amplitude and phase of the electromagnetic field starting from the cavity modes. Some applications of the code to a single cavity and a two cavity klystron are presented and compared with the results obtained from theory and from another code. Effects of space charge forces in the drift tubes are also evaluated.
Research interests: Accelerator Physics, Microwave electronics, Klystrons, beam optics
Skills short description: Design of RF components, design of klystron amplifiers, beam dynamics, knowledge of programming languages (C, Mathematica), use of electromagnetic simulation codes (CST Microwave Studio, HFSS, Superfish, GdfidL, MAGIC), use of beam optics programs (MAD, Elegant), good English, good French.
Personal skills keywords: klystrons
microwave electronics
accelerator physics
beam dynamics

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