Onset and Saturation of the Kink Instability in a Current-Carrying Line-Tied Plasma

Autor:	S. Stambler, Roch Kendrick, David Hannum, W.F. Bergerson, G. Fiksel, J. S. Sarff, Cary Forest
Rok vydání:	2006
Předmět:	Physics Safety factor Condensed matter physics Pinch General Physics and Astronomy Magnetic reconnection Plasma Kink instability Magnetohydrodynamics Saturation (chemistry) Instability
Zdroj:	Physical Review Letters. 96
ISSN:	1079-7114 0031-9007
Popis:	An internal kink instability is observed to grow and saturate in a line-tied screw pinch plasma. Detailed measurements show that an ideal, line-tied kink mode begins growing when the safety factor q=(4{pi}{sup 2}r{sup 2}B{sub z}/{mu}{sub 0}I{sub p}(r)L) drops below 1 inside the plasma; the saturated state corresponds to a rotating helical equilibrium. In addition to the ideal mode, reconnection events are observed to periodically flatten the current profile and change the magnetic topology.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a6c577d45939ad877be9659333c6cfe7 https://doi.org/10.1103/physrevlett.96.015004 Zobrazit plný text záznamu