Control techniques of thrust vector for magnetic nozzle in laser fusion rocket

摘要

An analysis of plasma behavior in a magnetic nozzle would be very useful for designing plasma propulsion systems using a laser fusion. We examine by using a three-dimensional (3D) hybrid code how a thrust vector varies with changing positions of the fusion explosion (off-axis explosion) for the one-coil system of a laser fusion rocket. Furthermore, we investigate plasma behaviors and the thrust efficiency, and optimize the thrust efficiency by changing the current and the position of a rear coil for two-coil system. We also discuss the possibility of control techniques of the thrust vector for a two-coil system.