Abstract
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 profile from falling below the value of , suppressing resonant , fluctuations.
- Received 13 October 2004
DOI:https://doi.org/10.1103/PhysRevLett.94.035003
©2005 American Physical Society