Kinetic simulation of parallel transport and ELM propagation in the Alcator C-Mod tokamak

The Fokker-Planck code ALLA [1] is employed to investigate parallel electron transport for plasma parameters and connection lengths typical of the Alcator C-Mod tokamak. A non-stationary 1D-2V purely kinetic model of scrape-off layer (SOL) plasmas is adopted which takes into account e-e and e-i Coul...

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Bibliographic Details
Published in:Journal of nuclear materials 1997-01, Vol.241, p.374-378
Main Authors: Batishchev, O.V., Batishcheva, A.A., Catto, P.J., Krasheninnikov, S.I., Labombard, B., Lipschultz, B., Sigmar, D.J.
Format: Article
Language:English
Subjects:
Kinetic analysis
SOL plasmas
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Summary:The Fokker-Planck code ALLA [1] is employed to investigate parallel electron transport for plasma parameters and connection lengths typical of the Alcator C-Mod tokamak. A non-stationary 1D-2V purely kinetic model of scrape-off layer (SOL) plasmas is adopted which takes into account e-e and e-i Coulomb collisions, the self-consistent parallel electric field, and the sheath potential. We numerically study the effects of an enhanced (or depleted) suprathermal tail of the electron distribution on the Langmuir divertor and fast-scanning (FS) probe measurements, and edge localized mode (ELM) bursts.
ISSN:0022-3115
1873-4820
DOI:10.1016/S0022-3115(97)80067-0