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Title: Survey of Collective Instabilities and Beam-Plasma Interactions in Intense Heavy Ion Beams

This paper presents a survey of the present theoretical understanding based on advanced analytical and numerical studies of collective processes and beam-plasma interactions in intense heavy ion beams for applications to ion-beam-driven high energy density physics and heavy ion fusion. The topics include: discussion of the conditions for quiescent beam propagation over long distances; and the electrostatic Harris instability and the transverse electromagnetic Weibel instability in highly anisotropic, intense one-component ion beams. In the longitudinal drift compression and transverse compression 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 instability, the multispecies electromagnetic Weibel instability, and collective excitations in the presence of a solenoidal magnetic field. The effects of a velocity tilt on reducing two-stream instability growth rates are also discussed. Operating regimes are identified where the possible deleterious effects of collective processes on beam quality are minimized.
Authors:
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Publication Date:
OSTI Identifier:
946737
Report Number(s):
LBNL-1436E
TRN: US0901153
DOE Contract Number:
DE-AC02-05CH11231
Resource Type:
Conference
Resource Relation:
Conference: Heavy Ion Fusion Symposium 2008HIF08, Tokyo, Japan, August 2-9, 2008
Research Org:
Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (US)
Sponsoring Org:
Accelerator& Fusion Research Division
Country of Publication:
United States
Language:
English
Subject:
70; COLLECTIVE EXCITATIONS; COMPRESSION; ELECTROSTATICS; ENERGY DENSITY; HEAVY IONS; INSTABILITY; ION BEAMS; MAGNETIC FIELDS; PHYSICS; PLASMA; TWO-STREAM INSTABILITY; VELOCITY charge-neutralizing background plasma, intense ion beam, beam-plasma interactions