Three-Dimensional Simulations of Coherent Smith-Purcell Radiation Using a Particle-in-Cell Code
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en
Article de revue
Ce document a été publié dans
IEEE Transactions on Electron Devices. 2009-05, vol. 56, p. 769-775
Institute of Electrical and Electronics Engineers
Résumé en anglais
A few years ago, a new theory for producing coherent Smith-Purcell radiation from an initially continuous electron beam was proposed. It was 2-D, and it has been supported by particle-in-cell code simulations, although no ...Lire la suite >
A few years ago, a new theory for producing coherent Smith-Purcell radiation from an initially continuous electron beam was proposed. It was 2-D, and it has been supported by particle-in-cell code simulations, although no experiments have, until now, provided confirmation. In fact, all experiments used a round beam, for which the 2-D theory may not be valid. We report here on a two-pronged attack on this problem. A 3-D simulation in the microwave domain indicates that coherent radiation, at a frequency near that of the 2-D simulation, should be produced. We are also preparing a demonstration experiment using an intense finite-width sheet beam to confirm the theory and simulations.< Réduire
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