Stability of tokamak plasmas with internal transport barriers against high n ideal magnetohydrodynamic ballooning mode

Autor:	Shi Bing-Ren, Qu Wenxiao
Rok vydání:	2006
Předmět:	Physics Tokamak Toroid General Physics and Astronomy Flux Plasma Mechanics Ballooning law.invention Shear (sheet metal) Physics::Plasma Physics law Physics::Space Physics Magnetohydrodynamic drive Atomic physics Magnetohydrodynamics
Zdroj:	Chinese Physics. 15:1532-1538
ISSN:	1741-4199 1009-1963
Popis:	A ballooning mode equation for tokamak plasma, with the toroidicity and the Shafranov shift effects included, is derived for a shift circular flux tokamak configuration. Using this equation, the stability of the plasma configuration with an internal transport barrier (ITB) against the high n (the toroidal mode number) ideal magnetohydrodynamic (MHD) ballooning mode is analysed. It is shown that both the toroidicity and the Shafranov shift effects are stabilizing. In the ITB region, these effects give rise to a low shear stable channel between the first and the second stability regions. Out of the ITB region towards the plasma edge, the stabilizing effect of the Shafranov shift causes the unstable zone to be significantly narrowed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::87bda9f49a39b6c7587d367d17f464e1 https://doi.org/10.1088/1009-1963/15/7/026 Zobrazit plný text záznamu