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IEEE Transactions on Plasma Science

Issue 2  Part 1 • April 2001

 This issue contains several parts.Go to:  Part 2 

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Displaying Results 1 - 25 of 33
  • Guest editorial: dusty plasmas in honor of professor d. asoka mendis on the occasion of his 65th birthday

    Publication Year: 2001, Page(s):146 - 148
    Cited by:  Papers (1)
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    Freely Available from IEEE
  • Tribute to professor D. Asoka mendis on the occasion of his 65th birthday

    Publication Year: 2001, Page(s):149 - 150
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  • Comments by D. Asoka Mendis

    Publication Year: 2001, Page(s): 151
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  • A dust halo of Enceladus

    Publication Year: 2001, Page(s):271 - 273
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    The physical consequence of the collisional interaction of the Saturnian E-ring particles with the icy satellite Enceladus is examined. It is suggested that Enceladus should be surrounded by an extended halo of dust particles. In association with the generation of impact vapor clouds, an abundance of tiny smoke particles of 10-100 Å diameter might be created and subsequently picked up by the... View full abstract»

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  • Modulational instabilities of electromagnetic waves in a collision-dominated dust-electron plasma

    Publication Year: 2001, Page(s):267 - 270
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (480 KB) | HTML iconHTML

    The nonlinear coupling between large amplitude electromagnetic waves and dust-acoustic waves (DAWs) in a dust-electron plasma is considered, taking into account the combined effects of the radiation pressure and the thermal force involving the differential Joule heating of the electrons caused by the electromagnetic waves. By employing a two-fluid approach, we derive a system of coupled equations ... View full abstract»

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  • Effect of charged dust on Hall current instabilities in the E region

    Publication Year: 2001, Page(s):261 - 266
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (692 KB) | HTML iconHTML

    The effect of charged dust on Hall current instabilities in the ion frequency regime is investigated for plasma parameters representative of the lower E region of the ionosphere above about 95 km. Linear kinetic theory is used, and both the longer wavelength Farley-Buneman two-stream instability and the shorter wavelength, higher frequency Hall current instability are considered. Under daytime con... View full abstract»

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  • Measurement of grain charge in dusty plasma Coulomb crystals

    Publication Year: 2001, Page(s):216 - 220
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (724 KB) | HTML iconHTML

    We report the measurement of the grain charge on individual dust grains of a dusty plasma Coulomb crystal. These dust grains, grown in a radio frequency plasma from constituent gases, are formed by the aggregation of nanometer sized crystallites. The Coulomb crystal formed from the dust grains appears to be made of mutually repulsive columns of grains confined by the walls of the electrode. A dire... View full abstract»

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  • The criteria for dust agglomeration in plasmas

    Publication Year: 2001, Page(s):158 - 163
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (612 KB) | HTML iconHTML

    We demonstrate dust particle attraction in a plasma due to plasma particle and neutral particle bombardment. A criteria of charged dust agglomeration is found, where the attraction forces, due to bombardment, exceed the dust repulsion forces due to Coulomb interaction between like charges. Agglomerates in the systems which are optically thin for thermal radiation of dust particles is considered View full abstract»

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  • Computer simulations of Coulomb crystallization in a dusty plasma

    Publication Year: 2001, Page(s):231 - 237
    Cited by:  Papers (22)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (788 KB) | HTML iconHTML

    It has been shown experimentally that under the proper conditions, a dusty plasma system can form an ordered, crystalline state known as a Coulomb or dust crystal. This paper uses a computer simulation to model the behavior of such a system while several parameters are changed independently of one another, something that is experimentally difficult to do. The computer program used is a modified Ba... View full abstract»

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  • The location of very small particles in silane RF discharge

    Publication Year: 2001, Page(s):256 - 260
    Cited by:  Papers (1)
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    The size and location of silicon particles that grow in a pure silane, capacitively coupled RF discharge, are measured by laser light scattering. The discharge conditions were similar to those typically used to produce amorphous silicon devices, except the temperatures is 300 K. At early discharge time, when the particles are small (D~15 nm), they are located at the middle of the discharge. The la... View full abstract»

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  • Formation of liquidlike and crystalline structures in dusty plasmas

    Publication Year: 2001, Page(s):210 - 215
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (860 KB) | HTML iconHTML

    A study of the strongly coupled dusty plasma was carried out over a wide range of plasma pressures and temperatures. The plasma was investigated under conditions of low-pressure inductively coupled radio frequency gas discharge and under thermal plasma conditions at atmospheric pressure. The plasma was also formed from positively charged dust grains in the presence of a flux of ultraviolet photons... View full abstract»

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  • Ring simulation experiment using fine-particle plasmas

    Publication Year: 2001, Page(s):279 - 282
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (428 KB) | HTML iconHTML

    We can create a ring structure around a magnetized miniature sphere which is immersed in a fine-particle plasma and rotated around its magnetic dipole axis. Aluminum fine particles generated by a boat method acquire charges by UV light irradiation and are converted to a fine-particle plasma. When the magnetized sphere was rotated in the fine-particle plasma, a ring appeared around the equatorial p... View full abstract»

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  • Dust particle motion in the vicinity of dust acoustic waves

    Publication Year: 2001, Page(s):152 - 157
    Cited by:  Papers (32)
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    In DC glow discharge dusty plasmas, the formation of dust acoustic waves is a commonly observed phenomenon. Experiments in the dusty plasma experiment device produce naturally occurring dust acoustic waves with frequencies f~5 to 25 Hz and phase velocities of υph~0.5 to 10 cm/s. Through the use of particle image velocimetry techniques, particle motion in the vicinity of the wavefro... View full abstract»

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  • Low-frequency electrostatic instabilities in strongly coupled dusty plasmas

    Publication Year: 2001, Page(s):226 - 230
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (548 KB) | HTML iconHTML

    Low-frequency electrostatic dust-wave instabilities in a plasma containing strongly correlated dust grains and ion flow are investigated. The effects of dust charge relaxation and strong Coulomb coupling are shown to be important in determining the instability behavior. The frequency and growth/damping rates of the waves exhibit transition behavior in the parameter space View full abstract»

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  • On equilibrium states and dust charging in dusty plasmas

    Publication Year: 2001, Page(s):175 - 178
    Cited by:  Papers (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (552 KB) | HTML iconHTML

    The dust-charge variation process is revisited, accounting for the background density variation associated with electron capture and release by the dust grains. It appears possible to maintain overall charge neutrality in the plasma without any external particle source or sink. It is shown that if the dust charge and density are sufficiently high, the effect of the background electron density vari... View full abstract»

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  • Molecular dynamics simulations of plasma crystal formation including wake effects

    Publication Year: 2001, Page(s):247 - 255
    Cited by:  Papers (15)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1136 KB) | HTML iconHTML

    Molecular dynamics (MD) simulations are used to study dusty plasma crystal formation in three dimensions. The grain interaction model includes a spherically symmetric Debye-Huckel potential, an asymmetric wake potential, and a unidirectional external potential representing gravity and the sheath potential. We use a new form for the wake with ion-neutral collisions that reduce the interaction lengt... View full abstract»

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  • Measurements of electrical discharges in Martian regolith simulant

    Publication Year: 2001, Page(s):288 - 291
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (568 KB) | HTML iconHTML

    Due to the prevalence of Martian dust devils and dust storms, an understanding of the underlying physics of electrical discharges in Martian dust is critical to future Mars exploratory missions. Measurements on the charging of single dust grains show that particles of Martian regolith simulant can have large electric potentials due to triboelectric charging. As a result of this charging, agitated ... View full abstract»

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  • Formation of a tripolar vortex in a contaminated electron-positron magnetoplasma with sheared flows

    Publication Year: 2001, Page(s):298 - 301
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (528 KB) | HTML iconHTML

    We derive a system of nonlinear equations governing the dynamics of low-frequency electrostatic waves in a magnetized pair plasma with sheared flows that is contaminated by dust grains. For some specific profiles of the equilibrium sheared flows, the nonlinear equations admit a stationary solution in the form of a tripolar vortex. The implications of our investigation to laboratory and space plasm... View full abstract»

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  • Effect of radiative cooling on molecular cloud collapse

    Publication Year: 2001, Page(s):307 - 312
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (704 KB) | HTML iconHTML

    The effect of the radiative cooling of electrons on the gravitational collapse of molecular clouds consisting of neutral particles along with electrons, ions, and electrically charged dust grains with fluctuating charge is investigated. We include the effect of radiation on the gravitational collapse of the neutrals only through the ion-neutral and grain-neutral collisions. In the absence of therm... View full abstract»

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  • A new electromagnetic wave in a dust-ion plasma

    Publication Year: 2001, Page(s):208 - 209
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (312 KB) | HTML iconHTML

    It is shown that a magnetized dust-ion plasma can support a new low-frequency circularly polarized dispersive electromagnetic wave, whose frequency is proportional to the wave electric field amplitude. In the new wave, inertia comes from the dust mass, whereas the restoring force is associated with the medium polarization due to relativistic ion motion. The implication of our investigation to cosm... View full abstract»

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  • Fine-particle clouds controlled in a DC discharge plasma

    Publication Year: 2001, Page(s):274 - 278
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (616 KB) | HTML iconHTML

    The spatial shape of fine-particle clouds in a strongly coupled state is controlled by varying a radial potential profile provided by radially segmented electrode for particle levitation and confinement under a completely DC configuration. Fine-particle clouds change their shapes from a usual two-dimensional disk to a three-dimensional cone, and finally concave cone with an increase in the radial ... View full abstract»

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  • Dust-acoustic shocks in a strongly coupled dusty plasma

    Publication Year: 2001, Page(s):221 - 225
    Cited by:  Papers (94)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (588 KB) | HTML iconHTML

    It is shown that the nonlinear propagation of the dust-acoustic waves in a strongly coupled dusty plasma is governed by a Korteweg-de Vries-Burgers (K-dV-Burgers) equation. The latter is derived from a set of generalized hydrodynamic equations for strongly correlated dust grains, as well as the Boltzmann distribution for electrons and ions. Possible stationary solutions of the K-dV-Burgers equatio... View full abstract»

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  • Self-similar expansion of a nonideal dusty plasma

    Publication Year: 2001, Page(s):164 - 174
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (996 KB) | HTML iconHTML

    The self-similar expansion into vacuum of a nonideal dusty plasma filling semi-infinite half space has been investigated for both unmagnetized, as well as magnetized, cases. The nonideal contributions arising from the dust species have been modeled through van der Waals' equation of state, while the electrons and the ions have been assumed to be ideal. For the unmagnetized dusty plasma, the govern... View full abstract»

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  • Particle simulation of dust structures in plasmas

    Publication Year: 2001, Page(s):238 - 246
    Cited by:  Papers (20)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1108 KB) | HTML iconHTML

    In the Earth's gravity, the dust in plasmas can form into a solid-like state In the plasma sheath. These ordered structures occur due to the balance of the interparticle forces, the gravitational force, and the sheath electric field. We have developed a particle simulation model to study the behavior of strongly coupled dust in plasmas under conditions of normal gravity and microgravity. The model... View full abstract»

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  • Dust-magnetosonic modes in planetary rings

    Publication Year: 2001, Page(s):283 - 287
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (416 KB) | HTML iconHTML

    Dust particles on near-Keplerian orbits in planetary rings drift relative to the co-rotating background plasma. Such relative streaming may drive dust-magnetosonic instabilities. Using a magnetofluid model, we revisit this situation, and include the possibility of polydisperse dust. In particular, we show that the growth rate is lower than anticipated from earlier work and that the instabilities c... View full abstract»

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Aims & Scope

IEEE Transactions on Plasma Sciences focuses on plasma science and engineering, including: magnetofluid dynamics and thermionics; plasma dynamics; gaseous electronics and arc technology.

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
Steven J. Gitomer, Ph.D.
Senior Scientist, US Civilian Research & Development Foundation
Guest Scientist, Los Alamos National Laboratory
1428 Miracerros Loop South
Santa Fe, NM  87505  87505  USA
tps-editor@ieee.org
Phone:505-988-5751
Fax:505-988-5751 (call first)