Collective instabilities and beam-plasma interactions in intense heavy ion beams

Collective instabilities and beam-plasma interactions in intense heavy ion beams

Blog Article

This paper presents a survey of the present theoretical understanding of collective processes and beam-plasma interactions affecting intense heavy ion beam propagation in heavy ion fusion systems.In the acceleration and beam transport regions, the topics covered include discussion Built-In Microwave of the conditions for quiescent beam propagation over long distances; the electrostatic Harris-type instability and the transverse electromagnetic Weibel-type instability in strongly anisotropic, one-component non-neutral ion beams; and the dipole-mode, electron-ion two-stream instability driven by an (unwanted) component of background electrons.In the plasma plug and target chamber regions, collective processes associated with the interaction of the intense ion beam with a charge-neutralizing background plasma are described, including the electrostatic electron-ion two-stream LAVENDER CASTILE SOAP instability, the electromagnetic Weibel instability, and the resistive hose instability.Operating regimes are identified where the possible deleterious effects of collective processes on beam quality are minimized.