Overview of Theory and Modeling in the Heavy Ion Fusion Virtual National Laboratory

Technical Report · Wed Apr 09 00:00:00 EDT 2003

DOI:https://doi.org/10.2172/813615· OSTI ID:813615

Davidson, R. C.; Kaganovich, I. D.; Lee, W. W.; Qin, H.; Startsev, E. A.; Tzenov, S; Friedman, A; Barnard, J J; Cohen, R H; Grote, D P; Lund, S M; Sharp, W M; Henestroza, E; Lee, E P; Yu, S S; Vay, J -L; Welch, D R; Rose, D V; Olson, C L; Celata, C. M.

This paper presents analytical and simulation studies of intense heavy ion beam propagation, including the injection, acceleration, transport and compression phases, and beam transport and focusing in background plasma in the target chamber. Analytical theory and simulations that support the High Current Experiment (HCX), the Neutralized Transport Experiment (NTX), and the advanced injector development program are being used to provide a basic understanding of the nonlinear beam dynamics and collective processes, and to develop design concepts for the next-step Integrated Beam Experiment (IBX), an Integrated Research Experiment (IRE), and a heavy ion fusion driver. Three-dimensional (3-D) nonlinear perturbative simulations have been applied to collective instabilities driven by beam temperature anisotropy and to two-stream interactions between the beam ions and any unwanted background electrons. Three-dimensional particle-in-cell simulations of the 2 MV Electrostatic Quadrupole (ESQ) injector have clarified the influence of pulse rise time. Analytical studies and simulations of the drift compression process have been carried out. Syntheses of a four-dimensional (4-D) particle distribution function from phase-space projections have been developed. And, studies of the generation and trapping of stray electrons in the beam self-fields have been performed. Particle-in-cell simulations, involving preformed plasma, are being used to study the influence of charge and current neutralization on the focusing of the ion beam in Neutralized Transport Experiment and in a fusion chamber.

• Research Organization: Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
• Sponsoring Organization: USDOE Office of Science (SC) (US)
• DOE Contract Number: AC02-76CH03073
• OSTI ID: 813615
• Report Number(s): PPPL-3804; TRN: US0303950
• Resource Relation: Other Information: PBD: 9 Apr 2003
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
74 ATOMIC AND MOLECULAR PHYSICS
BEAM DYNAMICS
BEAM TRANSPORT
COMPRESSION
DISTRIBUTION FUNCTIONS
ELECTROSTATICS
HEAVY IONS
ION BEAMS
PHASE SPACE
PULSE RISE TIME
TARGET CHAMBERS
BEAMS
HEAVY ION
INERTIAL CONFINEMENT FUSION
NONNEUTRAL PLASMAS