Published January 13, 2006
| Version v1
Journal article
Onset and Saturation of the Kink Instability in a Current-Carrying Line-Tied Plasma
Creators
- 1. Department of Physics, University of Wisconsin, 1150 University Avenue, Madison, WI 53706 (United States)
Description
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=(4π2r2Bz/μ0Ip(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
Additional details
Identifiers
Publishing Information
- Journal Title
- Physical Review Letters
- Journal Volume
- 96
- Journal Issue
- 1
- Journal Page Range
- p. 015004-015004.4
- ISSN
- 0031-9007
- CODEN
- PRLTAO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 37078590
- Subject category
- S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
- Descriptors DEI
- EQUILIBRIUM; KINK INSTABILITY; MAGNETOHYDRODYNAMICS; PERIODICITY; PLASMA; SATURATION; SCREW PINCH; TOPOLOGY
- Descriptors DEC
- FLUID MECHANICS; HYDRODYNAMICS; INSTABILITY; MATHEMATICS; MECHANICS; PINCH EFFECT; PLASMA INSTABILITY; PLASMA MACROINSTABILITIES; VARIATIONS
Optional Information
- Notes
- (c) 2006 The American Physical Society