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Title: Kinetics of the Collisionless Expansion of Spherical Nanoplasmas

Abstract

The collisionless expansion of spherical plasmas composed of cold ions and hot electrons is analyzed using a novel kinetic model, with special emphasis on the influence of the electron dynamics. Simple, general laws are found, relating the relevant expansion features to the initial conditions of the plasma, determined from a single dimensionless parameter. A transition is identified in the behavior of the ion energy spectrum, which is monotonic only for high electron temperatures, otherwise exhibiting a local peak far from the cutoff energy.

Authors:
; ; ;  [1];  [2]
  1. Dipartimento di Energetica, Politecnico di Torino, 10129 Turin (Italy)
  2. GoLP/Centro de Fisica dos Plasmas, Instituto Superior Tecnico, 1049-001 Lisbon (Portugal)
Publication Date:
OSTI Identifier:
20775229
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review Letters; Journal Volume: 96; Journal Issue: 17; Other Information: DOI: 10.1103/PhysRevLett.96.175002; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; COLLISIONLESS PLASMA; ELECTRON TEMPERATURE; ELECTRONS; ENERGY SPECTRA; EXPANSION; KINETICS; SPHERICAL CONFIGURATION

Citation Formats

Peano, F., Peinetti, F., Mulas, R., Coppa, G., and Silva, L.O. Kinetics of the Collisionless Expansion of Spherical Nanoplasmas. United States: N. p., 2006. Web. doi:10.1103/PhysRevLett.96.175002.
Peano, F., Peinetti, F., Mulas, R., Coppa, G., & Silva, L.O. Kinetics of the Collisionless Expansion of Spherical Nanoplasmas. United States. doi:10.1103/PhysRevLett.96.175002.
Peano, F., Peinetti, F., Mulas, R., Coppa, G., and Silva, L.O. Fri . "Kinetics of the Collisionless Expansion of Spherical Nanoplasmas". United States. doi:10.1103/PhysRevLett.96.175002.
@article{osti_20775229,
title = {Kinetics of the Collisionless Expansion of Spherical Nanoplasmas},
author = {Peano, F. and Peinetti, F. and Mulas, R. and Coppa, G. and Silva, L.O.},
abstractNote = {The collisionless expansion of spherical plasmas composed of cold ions and hot electrons is analyzed using a novel kinetic model, with special emphasis on the influence of the electron dynamics. Simple, general laws are found, relating the relevant expansion features to the initial conditions of the plasma, determined from a single dimensionless parameter. A transition is identified in the behavior of the ion energy spectrum, which is monotonic only for high electron temperatures, otherwise exhibiting a local peak far from the cutoff energy.},
doi = {10.1103/PhysRevLett.96.175002},
journal = {Physical Review Letters},
number = 17,
volume = 96,
place = {United States},
year = {Fri May 05 00:00:00 EDT 2006},
month = {Fri May 05 00:00:00 EDT 2006}
}