Perturbation to the magnetic field strength
Abstract
The variation in the magnetic field strength on a magnetic surface as a function of the magnetic angles is one of the most important properties of an equilibrium because it determines the trajectories of the charged particles. Even a small change in the field strength can produce a qualitative change in the trajectories. The perturbed magnetic field strength as a function of magnetic coordinates is derived for a given displacement ξ⃗ of the magnetic field lines. Ideal magnetohydrodynamics stability theory can be used to determine the field line displacement ξ⃗ of a perturbed plasma equilibria and, therefore, the perturbed field strength.
- Publication:
-
Physics of Plasmas
- Pub Date:
- April 2006
- DOI:
- Bibcode:
- 2006PhPl...13d4501B
- Keywords:
-
- 52.55.Dy;
- 52.55.Tn;
- 52.25.Fi;
- 52.30.Cv;
- 52.35.Py;
- General theory and basic studies of plasma lifetime particle and heat loss energy balance field structure etc.;
- Ideal and resistive MHD modes;
- kinetic modes;
- Transport properties;
- Magnetohydrodynamics;
- Macroinstabilities