2-STREAM INSTABILITY FOR A LIGHT-ION BEAM-PLASMA SYSTEM WITH EXTERNALMAGNETIC-FIELD

For inertial confinement fusion (ICF), a focused light ion beam (LIB) is required to propagate stably through a chamber to a target. It is p ointed out that the applied external magnetic field is important for L IB propagation. To investigate the influence of the external magnetic field on the LIB propagation, the electrostatic dispersion relation of the magnetized light ion beam-plasma system was analyzed. The particl e in-cell (PIC) simulation results are presented for a light ion beam- plasma system with an external magnetic field.