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This paper describes the overall design of a Ku-band 19 beam klystron amplifier. The device is designed to operate near to 2.5 KV with the total beam current of 0.5A equally distributed among its various beamlets. Two new schemes of magnetic focusing arrangement have been analyzed and experimented A block window design has been incorporated for the RF input and output. First, in-house developed codes...
This paper describes the design and experimentation of electrostatic focusing of electron beam using a demountable vacuum measurement setup. Initially a focusing setup is designed for focusing a single on-axis low perveance beam. The design was carried out using an in house developed 2.5 D finite difference electron optics code PIERCE and CST Particle Studio. This focusing scheme is being extended...
In this paper, a simple analytical approach for obtaining user-defined axial magnetic field profile of a periodic permanent magnet (PPM) structure used for focusing the electron beam in linear beam tubes is presented. Axially magnetized permanent ring magnet and single cell of a PPM structure are represented by equivalent solenoids, and their equivalent parameters are obtained from the dimensions...
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