Pressure Driven Magnetohydrodynamics Instabilities in Peaked Pressure Profile Reversed Magnetic Shear Plasmas

Autor:	Gao Qingdi, Zhang Jin-Hua, Qu Hong-peng
Rok vydání:	2001
Předmět:	Physics Resistive touchscreen Tokamak General Physics and Astronomy Mechanics Plasma Instability Neutral beam injection law.invention Physics::Fluid Dynamics Condensed Matter::Soft Condensed Matter Nuclear magnetic resonance Shear (geology) law Magnetohydrodynamics Pressure gradient
Zdroj:	Chinese Physics Letters. 18:790-792
ISSN:	1741-3540 0256-307X
DOI:	10.1088/0256-307x/18/6/326
Popis:	For a reversed magnetic shear plasma formed by early neutral beam injection into the HL-2A tokamak, magnetohydrodynamics instability analysis against ideal low-n modes and resistive interchange modes is carried out. Low-n modes located in the low shear region around the shear reversal point are driven unstable by a large pressure gradient, and they are of the characteristics of infernal modes. High pressure in the central negative shear region drives resistive interchange modes with the unstable window extending to r/a≈0.2, but not covering the low shear region around the shear reversal point.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::696510f14bd8441e77f0c94b9921dd85 https://doi.org/10.1088/0256-307x/18/6/326 Zobrazit plný text záznamu