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
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