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Title: Perpendicular diffusion of a dilute beam of charged dust particles in a strongly coupled dusty plasma

Journal Article · · Physics of Plasmas
DOI:https://doi.org/10.1063/1.4885353· OSTI ID:22304061
;  [1]
  1. Department of Physics and Astronomy, The University of Iowa, Iowa City, Iowa 52242 (United States)

The diffusion of projectiles drifting through a target of strongly coupled dusty plasma is investigated in a simulation. A projectile's drift is driven by a constant force F. We characterize the random walk of the projectiles in the direction perpendicular to their drift. The perpendicular diffusion coefficient D{sub p⊥} is obtained from the simulation data. The force dependence of D{sub p⊥} is found to be a power law in a high force regime, but a constant at low forces. A mean kinetic energy W{sub p} for perpendicular motion is also obtained. The diffusion coefficient is found to increase with W{sub p} with a linear trend at higher energies, but an exponential trend at lower energies.

OSTI ID:
22304061
Journal Information:
Physics of Plasmas, Vol. 21, Issue 6; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
Country of Publication:
United States
Language:
English

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