Volume 122, Number 4, May 2018
|Number of page(s)||7|
|Section||Electromagnetism, Optics, Acoustics, Heat Transfer, Classical Mechanics, and Fluid Dynamics|
|Published online||02 July 2018|
Electromagnetic power and momentum in N-body Hamiltonian approach to wave-particle dynamics in a periodic structure
1 Centre National d'Études Spatiales - av. Edouard Belin, 18, 31400 Toulouse, France, EU
2 Aix-Marseille Université, UMR 7345 CNRS, campus Saint Jérôme - case 322, av. escadrille Normandie- Niemen, 13397 Marseille cedex 20, France, EU
3 Thales Electron Devices - rue Latécoère, 2, 78140 Vélizy, France, EU
Received: 29 March 2018
Accepted: 15 June 2018
To model momentum exchange in nonlinear wave-particle interaction, as in amplification devices like traveling-wave tubes, we use an N-body self-consistent Hamiltonian description based on Kuznetsov's discrete model, and we provide new formulations for the electromagnetic power and field momentum in media. This approach leads to fast and accurate numerical simulations in time domain and in one-dimensional space.
PACS: 45.20.Jj – Lagrangian and Hamiltonian mechanics / 52.40.Mj – Particle beam interactions in plasmas / 84.40.Fe – Microwave tubes (e.g., klystrons, magnetrons, traveling-wave, backward-wave tubes, etc.)
© EPLA, 2018
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