Electron Cyclotron Absorption by RF Driven Current-Carrying Plasmas With Fast Particle Losses



Document title: Electron Cyclotron Absorption by RF Driven Current-Carrying Plasmas With Fast Particle Losses
Journal: Brazilian journal of physics
Database: PERIÓDICA
System number: 000309108
ISSN: 0103-9733
Authors: 1
2
Institutions: 1Universidade Federal de Mato Grosso do Sul, Departamento de Fisica, Campo Grande, Mato Grosso do Sul. Brasil
2Universidade Federal do Rio Grande do Sul, Instituto de Fisica, Porto Alegre, Rio Grande do Sul. Brasil
Year:
Season: Dic
Volumen: 27
Number: 4
Pages: 499-509
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Experimental, aplicado
English abstract We use quasilinear theory to investigate the influence of losses of energetic particles on the behaviour of electron cyclotron absorption during lower hybrid plus electron cyclotron current drive. Our analysis takes into account the quasilinear effects of the interaction of electron cyclotron radiation with a lower hybrid produced tail in the presence of collisions and a loss term for energetic particles. We study the behaviour of different quantities, as the parallel electron distribution function and the perpendicular temperature, for several values of the electron confinement time, an important parameter of the model loss term. The absorption of extraordinary mode electron cyclotron waves by tail electrons results to be substantially reduced when the loss term is taken into account in the quasilinear diffusion equation, as compared to the case where these losses are neglected
Disciplines: Física y astronomía
Keyword: Física de partículas y campos cuánticos,
Ciclotrón,
Partículas energéticas,
Arrastre de corriente
Keyword: Physics and astronomy,
Particle physics and quantum fields,
Cyclotron,
Energetic particles,
Current drive
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