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Title: Two-dimensional electron-electron two-stream instability of an inertial electrostatic confinement device

Abstract

Theoretical works by Barnes and Nebel [D. C. Barnes and R. A. Nebel, Phys. Plasmas 5, 2498 (1998); R. A. Nebel and D. C. Barnes, Fusion Technol. 38, 28 (1998)] have suggested that a tiny oscillating ion cloud (referred to as the periodically oscillating plasma sphere or POPS) may undergo a self-similar collapse in a harmonic oscillator potential formed by a uniform electron background. A major uncertainty in this oscillating plasma scheme is the stability of the virtual cathode that forms the harmonic oscillator potential. The electron-electron two-stream stability of the virtual cathode has previously been studied with a fluid model, a slab kinetic model, a spherically symmetric kinetic model, and experimentally [R. A. Nebel and J. M. Finn, Phys. Plasmas 8, 1505 (2001); R. A. Nebel et al., Phys. Plasmas 12, 040501 (2005)]. Here the mode is studied with a two-dimensional particle-in-cell code. Results indicate stability limits near those of the previously spherically symmetric case.

Authors:
; ; ; ;  [1]
  1. Plasma Physics Group, Blackett Laboratory, Imperial College, Prince Consort Road, SW7 2BW London (United Kingdom) and Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
Publication Date:
OSTI Identifier:
20860285
Resource Type:
Journal Article
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 13; Journal Issue: 10; Other Information: DOI: 10.1063/1.2356848; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1070-664X
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; CATHODES; ELECTRONS; FRACTALS; HARMONIC OSCILLATORS; INERTIAL CONFINEMENT; IONS; PERIODICITY; PLASMA; PLASMA SIMULATION; PLASMA WAVES; POTENTIALS; STABILITY; TWO-DIMENSIONAL CALCULATIONS; TWO-STREAM INSTABILITY

Citation Formats

Marocchino, A, Lapenta, G, Evstatiev, E G, Nebel, R A, Park, J, and Los Alamos National Laboratory, Los Alamos, New Mexico 87545. Two-dimensional electron-electron two-stream instability of an inertial electrostatic confinement device. United States: N. p., 2006. Web. doi:10.1063/1.2356848.
Marocchino, A, Lapenta, G, Evstatiev, E G, Nebel, R A, Park, J, & Los Alamos National Laboratory, Los Alamos, New Mexico 87545. Two-dimensional electron-electron two-stream instability of an inertial electrostatic confinement device. United States. https://doi.org/10.1063/1.2356848
Marocchino, A, Lapenta, G, Evstatiev, E G, Nebel, R A, Park, J, and Los Alamos National Laboratory, Los Alamos, New Mexico 87545. 2006. "Two-dimensional electron-electron two-stream instability of an inertial electrostatic confinement device". United States. https://doi.org/10.1063/1.2356848.
@article{osti_20860285,
title = {Two-dimensional electron-electron two-stream instability of an inertial electrostatic confinement device},
author = {Marocchino, A and Lapenta, G and Evstatiev, E G and Nebel, R A and Park, J and Los Alamos National Laboratory, Los Alamos, New Mexico 87545},
abstractNote = {Theoretical works by Barnes and Nebel [D. C. Barnes and R. A. Nebel, Phys. Plasmas 5, 2498 (1998); R. A. Nebel and D. C. Barnes, Fusion Technol. 38, 28 (1998)] have suggested that a tiny oscillating ion cloud (referred to as the periodically oscillating plasma sphere or POPS) may undergo a self-similar collapse in a harmonic oscillator potential formed by a uniform electron background. A major uncertainty in this oscillating plasma scheme is the stability of the virtual cathode that forms the harmonic oscillator potential. The electron-electron two-stream stability of the virtual cathode has previously been studied with a fluid model, a slab kinetic model, a spherically symmetric kinetic model, and experimentally [R. A. Nebel and J. M. Finn, Phys. Plasmas 8, 1505 (2001); R. A. Nebel et al., Phys. Plasmas 12, 040501 (2005)]. Here the mode is studied with a two-dimensional particle-in-cell code. Results indicate stability limits near those of the previously spherically symmetric case.},
doi = {10.1063/1.2356848},
url = {https://www.osti.gov/biblio/20860285}, journal = {Physics of Plasmas},
issn = {1070-664X},
number = 10,
volume = 13,
place = {United States},
year = {Sun Oct 15 00:00:00 EDT 2006},
month = {Sun Oct 15 00:00:00 EDT 2006}
}