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Modeling of a G-band extended interaction klystron using the large-signal code TESLA

The large-signal code TESLA (Telegraphist's Equations Solution for Linear beam Amplifiers) was originally developed for the analysis and design of klystrons. It has now been applied to the simulation of an extended interaction klystron (EIK) for the first time. Results for the power transfer curve and bandwidth curves computed for a G-band EIK compare well to their measured values. TESLA obtains these results almost on the two orders of magnitude faster than a 3D particle-in-cell simulation code.