Growth of a Gaussian ripple on a uniform beam in a magnetoplasma
Abstract
This paper presents an investigation of the growth of a Gaussian ripple superimposed on a uniform beam propagating along the static magnetic field in a magnetoplasma. The differential equation for beam width parameter of the ripple has been written by following Sodha et al (1976) and its numerical solution has been obtained by Runge Kutta method. Two modes of propagation of the ripple exist, viz. extraordinary and ordinary, and the critical power for focusing is also different for the two modes. The ripple gets focused when the initial power of the ripple is greater than the critical power for focusing. The focusing is also considerably affected by the power of the main beam, the strength of the magnetic field and the phase angle between the electric vectors of the main beam and the ripple.
 Publication:

Journal of Physics D Applied Physics
 Pub Date:
 January 1979
 DOI:
 10.1088/00223727/12/1/010
 Bibcode:
 1979JPhD...12...83S
 Keywords:

 Magnetohydrodynamic Stability;
 Magnetostatic Fields;
 PlasmaElectromagnetic Interaction;
 Ripples;
 RungeKutta Method;
 Self Focusing;
 Beams (Radiation);
 Collisional Plasmas;
 Collisionless Plasmas;
 Normal Density Functions;
 Propagation Modes;
 Plasma Physics