Particle beam transport through an insulator guide

• Published in: Fusion engineering and design Vol. 44; no. 1; pp. 309 - 312
• Main Authors: Kawata, S, Hanamori, S, Yamakura, M, Fujii, S
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Amsterdam Elsevier B.V 01.02.1999; New York, NY Elsevier Science
• Subjects: Atomic, molecular and charged-particle sources and detectors; Charged-particle beam sources and detectors; Charged-particle beam sources anddetectors; Exact sciences and technology; Instruments, apparatus, components and techniques common to several branches of physics and astronomy; Insulator guide; Intense electron beam; Intense ion beam; Particle beam interactions in plasma; Physics; Physics of gases, plasmas and electric discharges; Physics of plasmas and electric discharges; Plasma interactions (nonlaser); Plasma properties; Transport properties; Intense electron beam; Insulator guide; Intense ion beam; Particle beams; Electron beams; Ion beam; Guided wave; Insulators; Transport processes; Experimental study; Charged particles; Pulsed power technology; Beam currents
• ISSN: 0920-3796; 1873-7196
• DOI: 10.1016/S0920-3796(98)00299-3

In this paper we present a new transport scheme for an intense electron beam and for an intense ion beam using an insulator guide: charged particle extraction from a plasma generated at the insulator surface is self-regulated by the net space charge of the beam in order for effective charge neutralization. A part of the beam particles hits the insulator surface, and the particle charge accumulated at the insulator surface creates local discharges. The discharges produce the plasma at the insulator surface. In this paper we present particle-in-cell simulation results for the particle beam transport through the insulator guide. The simulation results demonstrate that the self-regulated space-charge neutralization is effectively achieved, and that the simplicity of the proposed scheme may increase its viability.