Stable operation of an effectively axisymmetric neutral beam driven tandem mirror
Autor: | G. Dimonte, S. Falabella, A.W. Molvik, T. A. Casper, P.A. Pincosy, D.L. Correll, J.D. Barter, J. H. Foote, Dean A. Buchenauer |
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Rok vydání: | 1990 |
Předmět: | |
Zdroj: | Nuclear Fusion. 30:815-830 |
ISSN: | 1741-4326 0029-5515 |
DOI: | 10.1088/0029-5515/30/5/002 |
Popis: | A quiescent plasma is sustained for 80 energy confinement times by only gas fuelling and neutral beam heating in an axisymmetric region of the Tandem Mirror Experiment Upgrade (TMX-U). This plasma should be unstable because of the bad magnetic curvature and the absence of ion cyclotron heating which previously provided ponderomotive stabilization to sustain plasmas in bad-curvature regions of other axisymmetric mirror experiments. The TMX-U data are consistent with stabilization by a symbiosis between two mechanisms – line tying, which reduces the growth rate, and finite Larmor radius edge stabilization, which can result in quiescent operation. |
Databáze: | OpenAIRE |
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