منابع مشابه
Plasma crystal: Coulomb crystallization in a dusty plasma.
A macroscopic Coulomb crystal of solid particles in a plasma has been observed. Images of a cloud of 7-p,m "dust" particles, which are charged and levitated in a weakly ionized argon plasma, reveal a hexagonal crystal structure. The crystal is visible to the unaided eye. The particles are cooled by neutral gas to 310 K, and their charge is >9800e, corresponding to a Coulomb coupling parameter r...
متن کاملStructural analysis of a Coulomb lattice in a dusty plasma.
Pair and bond-orientational correlation functions and structure factors, asused in colloidal science, are applied as quantitative indicators of the phase of the newly discovered "plasma crystals." These Coulomblattice structures are formed by charged microspheres levitated in glow discharge plasmas and are imaged photographically. Static structural analysis is demonstrated on the experimental d...
متن کاملCharacteristics of Coulomb fission
Hans Kruse and William T. Pinkston Department of Physics, Vanderbilt Uniuersity, Nashuille, Tennessee 37235 (Received 23 February 1979) Within an extended semiquantal theory we perform large-sized coupled-channel calculations involving 260 collectiue .levels for Coulomb fission of 238U. Differential Coulomb fission cross sections are studied as a function of bombarding energy and impact Paramet...
متن کاملTransverse waves in a two-dimensional screened-coulomb crystal (Dusty plasma)
Transverse shear waves were observed experimentally in a two-dimensional screened Coulomb crystal. They were excited by applying a chopped laser beam to a 2D dusty plasma, i.e., a monolayer of charged microspheres levitated in a plasma. Measurements of the dispersion relation reveal an acoustic, i.e., nondispersive, character over the entire range of wave numbers measured, 0.2<k(r)a/pi<0.7, whe...
متن کاملDusty Plasma Liquids
The dusty plasma liquid formed by micro-meter sized particles negatively charged and suspended in a low pressure discharge background is a good candidate to study the generic spatio-temporal dynamical behaviors at the kinetic level through direct optical video-microscopy, because of the sub-mm interparticle spacing and the slow time scale. In this paper, starting from the basic picture of the a...
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ژورنال
عنوان ژورنال: Physics of Plasmas
سال: 2016
ISSN: 1070-664X,1089-7674
DOI: 10.1063/1.4954906