# IEEE Transactions on Plasma Science

## Issue 5  Part 1 • Oct. 2007

This issue contains several parts.Go to:  Part 2

## Filter Results

Displaying Results 1 - 25 of 34

Publication Year: 2007, Page(s):C1 - 1193
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• ### IEEE Transactions on Plasma Science publication information

Publication Year: 2007, Page(s): C2
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• ### Special Issue on Modeling and Simulation of Collisional Low-Temperature Plasmas

Publication Year: 2007, Page(s):1194 - 1195
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• ### Generalized Transport Coefficients of Multicomponent Low-Temperature Plasmas

Publication Year: 2007, Page(s):1196 - 1203
Cited by:  Papers (2)
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We present an efficient solution strategy for the calculation of the transport coefficients of a multicomponent nonequilibrium low-temperature plasma based on a generalized heavy-particle transport model. In this regime, the chemical and thermal properties show that the plasma is not in equilibrium. However, the heavy particles themselves are expected to be in a local thermal equilibrium. Hence, w... View full abstract»

• ### A Numerical Simulation Code for Electronic and Ionic Transients From a Time-Resolved Pulsed Townsend Experiment

Publication Year: 2007, Page(s):1204 - 1209
Cited by:  Papers (11)
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A numerical code which calculating the spatio-temporal development of the discharge current in the Townsend regime has been developed. This code was written in Fortran 77. The individual contribution of electrons, positive, and negative ions to the total measurable current in the pulsed discharge is calculated by solving the corresponding set of coupled continuity equations for each species, for w... View full abstract»

• ### Effective Ionization Coefficients and Transport Parameters in Ultradilute $hbox{SF}_{6} + hbox{N}_{2}$ Mixtures

Publication Year: 2007, Page(s):1210 - 1214
Cited by:  Papers (18)
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The effective ionization coefficients in ultradilute SF6 + N2 gas mixtures are calculated from a Monte Carlo technique over the range 100 ≤ E/N ≤ 270 Td together with electron drift velocities and pulsed Townsend mean energies. SF6 contents in the mixtures of 0.1%, 0.3%, 0.5%, 0.7%, and 1% are considered. The effective ionization coefficients decrease... View full abstract»

• ### Nonequilibrium Properties of Electrons in Oxygen Plasmas

Publication Year: 2007, Page(s):1215 - 1222
Cited by:  Papers (5)
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Theoretical investigations of DC discharge plasmas in reactors with plane electrodes are presented. A multiterm method for the solution of the space-dependent Boltzmann equation of the electrons has been adopted and modified to analyze the behavior of the velocity distribution function and of relevant macroscopic properties of the electron component in oxygen discharge plasmas for a wide range of ... View full abstract»

• ### A Particle-in-Cell Simulation of the High-Field Effect in Devices With Micrometer Gaps

Publication Year: 2007, Page(s):1223 - 1228
Cited by:  Papers (24)
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Devices with micrometer and submicrometer gaps can face a serious challenge due to electrical breakdown during manufacturing, handling, and operation. Therefore, it is necessary to be aware of the breakdown voltage at different gaps. Since the Paschen's law is not valid for gaps smaller than several micrometers, modified Paschen curve should be used to predict breakdown voltage for microdevices. O... View full abstract»

• ### Experimental and Theoretical Study of Ion Energy Distribution Function in Single and Dual Frequency RF Discharges

Publication Year: 2007, Page(s):1229 - 1240
Cited by:  Papers (30)
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Ion energy distribution functions (IEDFs) at the electrodes in single frequency (SF) and dual frequency (DF) radio-frequency discharges in Ar at pressures of 20 and 45 mtorr are measured and calculated. A numerical simulation of the IEDF on the base of a self-consistent particle-in-cell model with Monte Carlo collisions was performed. In addition, a semianalytical model was developed to calculate ... View full abstract»

• ### Self-Consistent Modeling of the Effect of Wall-Neutral Reactions on Parallel Plate Radio Frequency Discharge Plasma in Pure Hydrogen

Publication Year: 2007, Page(s):1241 - 1246
Cited by:  Papers (6)
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A hybrid model (charged particles/neutral fluid) is used in studying the effect of wall-neutral reactions on the charged particle kinetics of parallel plate radio frequency discharge plasmas in pure hydrogen. These effects are due to the strong sensitivity of the H- production rate to the vibrational distribution function of H2 molecules. In particular, the effects of heterog... View full abstract»

• ### Modeling Multicusp Negative-Ion Sources

Publication Year: 2007, Page(s):1247 - 1259
Cited by:  Papers (16)
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The study of negative-ion production and its optimization is of fundamental importance in the thermonuclear research field. Indeed, negative-ion beams are favorites for the generation of neutral particle beams used in fusion plasma heating because of their higher neutralization efficiency with respect to positive ions. This paper concerns the development of a 0-D model for multicusp negative-ion s... View full abstract»

• ### Spatiotemporal Relaxation of a Disturbed Neon Glow Discharge

Publication Year: 2007, Page(s):1260 - 1266
Cited by:  Papers (4)
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In this paper, spatiotemporal relaxation of a neon glow discharge plasma is theoretically investigated. The study concerns the positive column and the adjacent anode region. The relaxation is initiated by a short laser pulse that disturbs the column plasma by depopulating the metastable atoms near the cathode-sided boundary of the considered region. The resulting decrease of the ionization rate in... View full abstract»

• ### Properties of Electromagnetic Wave Propagation Emerging in 2-D Periodic Plasma Structures

Publication Year: 2007, Page(s):1267 - 1273
Cited by:  Papers (47)
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Periodic structures in plasmas form unique dispersions of electromagnetic waves, which are examined in numerical calculation. Above electron plasma frequency, where waves equivalently propagate in dielectric media, plasma arrays with 2-D periodicity produce frequency regions of forbidden propagation, like band gaps in a photonic crystal. Below electron plasma frequency, where waves are usually for... View full abstract»

• ### Electron and Ion Kinetics in a DC Microplasma at Atmospheric Pressure

Publication Year: 2007, Page(s):1274 - 1278
Cited by:  Papers (56)  |  Patents (1)
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The results of a particle-in-cell Monte Carlo collision (PIC-MCC) simulation of a direct current (DC) helium microplasma that operates at atmospheric pressure are presented. Electron and ion kinetic information that is not available from previous fluid studies is reported. Despite the high collisionality at atmospheric pressure, electrons are found to be in nonequilibrium. Similar to large-scale l... View full abstract»

• ### Nonthermal Atmospheric RF Plasma in 1-D Spherical Coordinates: A Parametric Study

Publication Year: 2007, Page(s):1279 - 1286
Cited by:  Papers (4)
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We present 1-D simulations of atmospheric-pressure RF-excited plasma with two concentric spherical electrodes and the inner electrode powered. The gap distance between the inner and outer electrodes is 1 mm. The gas used is helium with a small amount of nitrogen as an impurity. The coupled continuity equations and electron energy equation are solved with Poisson's equation using the finite element... View full abstract»

• ### Critical Analysis on Two-Dimensional Point-to-Plane Streamer Simulations Using the Finite Element and Finite Volume Methods

Publication Year: 2007, Page(s):1287 - 1300
Cited by:  Papers (34)
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Two different categories of high-order numerical methods are adopted for the electro-hydrodynamic modeling of the streamer: the finite-element method (FEM) with flux-corrected-transport (FCT) technique and the finite-volume method (FVM) with monotonic upwind-centered scheme for conservation-law (MUSCL) algorithm. Specific numerical tests on the transport equation are used to investigate the effici... View full abstract»

• ### Simulation of Direct-Current Surface Plasma Discharge Phenomena in High-Speed Flow Actuation

Publication Year: 2007, Page(s):1301 - 1311
Cited by:  Papers (13)
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We present a self-consistent 2-D multispecies multi-temperature model of dc nonequilibrium surface plasma discharge phenomena in the presence of a low-pressure imposed high-speed convective flow. For pressures of a few torr and voltages of a few kilovolts, a nonequilibrium glow discharge is generated between the electrodes. Peak charge densities in the discharge on the order of 1014-10<... View full abstract»

• ### Numerical Simulation of a Crossed Pulser–Sustainer Discharge in Transverse Magnetic Field

Publication Year: 2007, Page(s):1312 - 1324
Cited by:  Papers (6)
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Modeling of a crossed pulser-sustainer discharge in the presence of a transverse magnetic field is used to obtain insight into the kinetics of a low-temperature magnetohydrodynamics (MHD) nitrogen plasma. Ionization in the discharge is produced by repetitive high-voltage nanosecond-duration pulses, while the low-voltage DC sustainer discharge couples power to the plasma between pulses. Model predi... View full abstract»

• ### Numerical Description of Pulsed Breakdown Between Parabolic Electrodes

Publication Year: 2007, Page(s):1325 - 1334
Cited by:  Papers (8)
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A fluid code and a hybrid fluid-particle code are applied to an experimental setup used for breakdown research. The setup consists of two cylindrically symmetric parabolic electrodes, with their tips separated by 3.3 mm in a 3.5-torr argon environment. A voltage pulse was applied with a rise time of 30 μs, followed by a period at a constant voltage of 350 V. Experimental observations of the... View full abstract»

• ### A Study on the Effects of Geometry on Demixing in Metal–Halide Lamps

Publication Year: 2007, Page(s):1335 - 1340
Cited by:  Papers (5)
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Convection and diffusion in the discharge region of a metal-halide lamp are studied using a computer model built with the plasma-modeling package Plasimo. A model lamp containing mercury and sodium iodide is studied. Recently, the underlying program architecture in Plasimo has been overhauled to allow nonrectangular computational domains. We used this new feature to model the effects of the electr... View full abstract»

• ### The Bohm Plasma-Sheath Model and the Bohm Criterion Revisited

Publication Year: 2007, Page(s):1341 - 1349
Cited by:  Papers (14)
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The plasma-sheath model and the Bohm criterion introduced by Bohm are among the earliest attempts to separately model the plasma and the sheath and to find a way to join the plasma and the sheath solutions. Although there is hardly a paper on plasma-sheath modeling that does not quote the Bohm criterion, Bohm's paper and his results are widely misunderstood. The reason for this is that, in his pap... View full abstract»

• ### Modeling of Si Etching Under Effects of Plasma Molding in Two-Frequency Capacitively Coupled Plasma in SF6/O2 for MEMS Fabrication

Publication Year: 2007, Page(s):1350 - 1358
Cited by:  Papers (16)
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We numerically investigated Si deep etching with several hundreds of micrometers such as that used in microelectromechanical system fabrication. This was carried out in SF6(83%)O2 at 300 mtorr in two-frequency capacitively coupled plasma using an extended vertically integrated computer-aided design for device processing (VicAddress). We estimated the local characteristics of ... View full abstract»

• ### Roughness Formation During Plasma Etching of Composite Materials: A Kinetic Monte Carlo Approach

Publication Year: 2007, Page(s):1359 - 1369
Cited by:  Papers (17)  |  Patents (3)
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The focus of this article is on the plasma-etching behavior of films of composite materials consisting of two randomly distributed phases with different etch rates. Two etching modes are examined as follows: 1) with anisotropic flux of ions (sputtering) and 2) with isotropic flux of etchants (chemical etching). First, analytical relations are derived to describe etch rate and surface coverage (wit... View full abstract»

• ### Generation of Fast Neutral Beams by Ion Neutralization in High-Aspect-Ratio Holes: A Particle-in-Cell Simulation Study

Publication Year: 2007, Page(s):1370 - 1378
Cited by:  Papers (4)  |  Patents (1)
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In this paper, a particle-in-cell simulation of ion and neutral-beam extraction through a grid with high-aspect-ratio holes in contact with plasma was developed. Particular emphasis was placed on plasma molding over the holes, ion neutralization along the sidewall of the holes, and the energy and angular distributions of the residual ions and fast neutrals in the beam downstream of the holes. The ... View full abstract»

• ### Simulating Plasma-Induced Hall Thruster Wall Erosion With a Two-Dimensional Hybrid Model

Publication Year: 2007, Page(s):1379 - 1387
Cited by:  Papers (16)
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A 2-D radial-axial (r-z) hybrid fluid/particle-in-cell (PIC) model has been developed to model energetic particle-induced channel-wall erosion in coaxial Hall discharge plasma thrusters. The discharge model geometry corresponds to that of a so-called stationary plasma thruster with an extended dielectric channel, and the computational domain extends from the anode at the base of this channel throu... View full abstract»

## 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)