Constants of motion in a helical magnetic field
Abstract
The relationship between the ''screw'' symmetry of a helical magnetic field and the constants of motion of the system is obtained. In particular, the integral of motion for the symmetry is derived and the relationship between this integral and one obtained by Laird and Knox is demonstrated.
 Publication:

Physics of Fluids
 Pub Date:
 March 1981
 DOI:
 10.1063/1.863411
 Bibcode:
 1981PhFl...24..564J
 Keywords:

 Magnetic Field Configurations;
 Particle Energy;
 Particle Motion;
 Symmetry;
 Equations Of Motion;
 Kinetic Energy;
 Plasma Physics