Theory and simulation of relaxed plasmoids

Details Theory and simulation of relaxed plasmoids Theory and simulation of relaxed plasmoids

Dec 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987mrc..rept.....b&link_type=abstract

Final Report, 1 Sep. 1986 - 31 Oct. 1987 Mission Research Corp., Alexandria, VA.

Physics

Electrons, Ions, Laser Outputs, Plasma Equilibrium, Plasma Pinch, Plasmas (Physics), Vacuum, Variational Principles, Cores, Dimensions, Efficiency, Lorentz Force, Models, Particle Beams, Regions, Space Environment Simulation

Scientific paper

Plasmoids can be described as a group of electrons and ions that propagate as a unit through vacuum. In their present conception they consist of an expanding halo region, carrying return current and bearing a slight charge imbalance, and an equilibrium core region that propagates like a pinched charged particle beam. This model was first suggested by T. Lockner of Sandia. Since they are a type of charged particle beam, they can be generated with higher efficiency and deposit their energy over a deeper distance in matter than laser beams. This makes plasmoids attractive for defense applications; however, the structure, formation, and propagation of plasmoids in a space environment are not known at present. Theory and one-dimensional simulations aimed at finding the core structure of plasmoids by using variational principles have been successful. This report documents the progress made in this first phase of research. A proposed second phase of research will use similar techniques to model the three-dimensional formation and propagation of plasmoids in a space environment.

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