The emission of the electromagnetic modes in the inertial confinement fusion process

The body stress flow due to laser ponderomotive force can be detrimental to the process of the imploding fusion fuel and a necessity for achieving thermonuclear fusion reactions. In the present work, the electromagnetic modes emission in the presence of the body stress in the inertial confinement fusion process is investigated. Using kinetic theory and solving the scattering relationship for the Vlasov–Maxwell system, the collision effect on the growth of the electromagnetic mode in the fuel pellet is investigated. In the anisotropic distribution function, the effects of the body stress and the density gradient are considered. The results show that the maximum value of the electromagnetic instability growth for the purely transversal mode is 57% greater than that of the transverse-longitudinal coupled mode. Decreasing density gradient and increasing the density toward the fuel center, the propagation angle of the electromagnetic unstable modes in the fuel pellet becomes wider. Increasing the density prevents immediate cessation and enhances the growth of unstable modes. Increasing the collision correction will lead to a significant reduction in the instability growth rate of the electromagnetic modes in the burning process of the fusion fuel.