Numerical investigation of transients in the SSPX spheromak

Nonlinear plasma simulations of the Sustained Spheromak Physics Experiment demonstrate the role of transient effects in establishing a toroidal magnetic structure that confines internal energy. Magnetohydrodynamics modeling with temperature-dependent transport coefficients compares well with experim...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	Physical review letters 2005-01, Vol.94 (3), p.035003.1-035003.4, Article 035003
Hauptverfasser:	SOVINEC, C. R, COHEN, B. I, CONE, G. A, HOOPER, E. B, MCLEAN, H. S
Format:	Artikel
Sprache:	eng
Schlagworte:	Exact sciences and technology Magnetic confinement and equilibrium Magnetohydrodynamic and fluid equation Physics Physics of gases, plasmas and electric discharges Physics of plasmas and electric discharges Plasma macroinstabilities (hydromagnetic, eg, kink, fire-hose, mirror, ballooning, tearing, trapped-particle, flute, Rayleigh-Taylor, etc.) Plasma macroinstabilities (magnetohydrodynamic, e.g., kink, fire-hose, mirror, ballooning, tearing, trapped-particle, flute, rayleigh-taylor, etc.) Plasma simulation Spheromaks Waves, oscillations, and instabilities in plasmas and intense beams
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	Nonlinear plasma simulations of the Sustained Spheromak Physics Experiment demonstrate the role of transient effects in establishing a toroidal magnetic structure that confines internal energy. Magnetohydrodynamics modeling with temperature-dependent transport coefficients compares well with experimental measurements and shows that the second current pulse improves confinement by keeping the q profile from falling below the value of 1/2, suppressing resonant m = 1, n = 2 fluctuations.
ISSN:	0031-9007 1079-7114
DOI:	10.1103/PhysRevLett.94.035003