|Título||Thermal effects and space-charge limited transition in crossed-field devices
Rizzato, Felipe Barbedo
|Abstract||A fully kinetic model for the electron flow in a crossed field device is derived and used to determine the system stationary states. It is found that for low injection temperatures, there is a simultaneous presence of distinct stationary solutions and an abrupt transition between accelerating and space-charge limited regimes. On the other hand, for high injection temperatures, there is only a single stationary solution branch and the change between the regimes becomes continuous. For intermediate temperatures, it is then identified a critical point that separates the abrupt and continuous behaviors. It is also investigated how intrinsic space-charge oscillations may drive stationary states unstable in certain parameter regimes. The results are verified with N-particle self-consistent simulations.
|Contido em||Physics of plasmas. Melville. Vol. 21, no. 8 (Aug. 2014), 083111, 5 p.
Processos de transporte em plasmas
Teoria cinetica de plasmas
|Tipo||Artigo de periódico
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