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Modelling of parallel dynamics of a pellet-produced plasmoid

Runov, A. ; Aleynikov, P. ; Arnold, A. M. ; Breizman, B. N. ; Helander, P.

Journal of plasma physics, 2021-07, Vol.87 (4) [Periódico revisado por pares]

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Título:
Modelling of parallel dynamics of a pellet-produced plasmoid
Autor: Runov, A. ; Aleynikov, P. ; Arnold, A. M. ; Breizman, B. N. ; Helander, P.
Assuntos: Physics
É parte de: Journal of plasma physics, 2021-07, Vol.87 (4)
Notas: USDOE Office of Science (SC)
FG02-04ER54742; SC0016283
Descrição: The parallel expansion of a dense, pellet-produced plasmoid is modelled with parameters relevant to pellet fuelling experiments in the Wendelstein7-X stellarator. Good agreement is found between the analytical theory and more detailed modelling. In particular, much of the energy deposited in the pellet by the ambient plasma is transferred to the pellet ions by the ambipolar electric field during the expansion. The validity of the hydrodynamic treatment of the plasmoid and the ambient plasma is discussed.
Editor: United States: Cambridge University Press
Idioma: Inglês

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