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Full-Text Articles in Physics

Decay Of Trapped-Particle Asymmetry Modes In Non-Neutral Plasmas In A Malmberg-Penning Trap, Grant W. Mason May 2003

Decay Of Trapped-Particle Asymmetry Modes In Non-Neutral Plasmas In A Malmberg-Penning Trap, Grant W. Mason

Faculty Publications

The mechanism for the strong damping of diocotron-like azimuthal trapped-particle asymmetry modes in a Malmberg-Penning trap is investigated with a detailed three-dimensional particle-in-cell computer simulation. The m = 1,kzis not equal to 0 modes are created by a voltage squeeze from a mid-detector ring followed by a displacement of trapped particles in opposite directions on either side of the ring. The voltage squeeze creates a population of particles confined to half the trap length (trapped) and a population of particles that move longitudinally along the full length of the cylinder (untrapped). The damping of the modes is found to be …


Eigen Modes And Ferromagnetic Resonance Line Width Of Inhomogeneous Thin Films, R. D. Mcmichael, Andrew Kunz, D. J. Twisselmann Mar 2003

Eigen Modes And Ferromagnetic Resonance Line Width Of Inhomogeneous Thin Films, R. D. Mcmichael, Andrew Kunz, D. J. Twisselmann

Physics Faculty Research and Publications

In this paper, we describe modeling of the effects of magnetic inhomogeneity on ferromagnetic resonance line width using eigen mode analyses of inhomogeneous thin magnetic films.