Ion collisionality and L–H transition in tokamaks
作者:
K. C. Shaing,
P. J. Christenson,
期刊:
Physics of Fluids B: Plasma Physics
(AIP Available online 1993)
卷期:
Volume 5,
issue 3
页码: 666-668
ISSN:0899-8221
年代: 1993
DOI:10.1063/1.860511
出版商: AIP
数据来源: AIP
摘要:
When the previous H‐mode theory [K. C. Shaing and E. C. Crume, Jr., Phys. Rev. Lett.63, 2369 (1989)] is extended to include a bi‐Maxwellian ion distribution with both cold and hot ion components to model the effects of the non‐Maxwellian distribution, the collisionality of the cold ions &ngr;*icbecomes an irrelevant bifurcation parameter, as it is for the electrode‐induced H mode. Thus, the observation that the L–H transition can occur even when &ngr;*ic≫1 is consistent with the fundamental physics of the ion orbit loss model, including a hot ion component.
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