Nonequilibrium Processes in Partially Ionized Gases

Nonequilibrium Processes in Partially Ionized Gases PDF Author: M. Capitelli
Publisher: Springer Science & Business Media
ISBN: 1461537800
Category : Science
Languages : en
Pages : 682

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Book Description
The NATO . Advanced Research Insti tute on Nonequilibrium Processes in Partially Ionized Gases was held at Acquafredda di Maratea during 4-17 June 1989. The Institute considered the interconnections between scattering and transport theories and modeling of nonequilibrium systems generated by electrical discharges, emphasizing the importance of microscopic processes in affecting the bulk properties of plasmas. The book tries to reproduce these lines. In particular several contributions describe scattering cross sections involving electrons interacting with atoms and molecules in both ground and excited states (from theoretical and experimental point of view), of energy transfer processes as well as reactive ones involving excited molecules colliding with atoms and molecules as well as with metallic surfaces. Other contributions deal with the basis of transport theories (Boltzmann and Monte Carlo methods) for describing the bulk properties of non equilibrium plasmas as well as with the modeling of complicated systems emphasizing in particular the strong coupling between the Boltzmann equation and excited state kinetics. Finally the book contains several contributions describing applications in different fields such as Excimer Lasers, Negative Ion Production, RF Discharges, Plasma Chemistry, Atmospheric Processes and Physics of Lamps. The Organizing Committee gratefully acknowledges the generous financial support provided by the NATO Science Committee as well as by Azienda Autonoma di Soggiorno e Turismo of Maratea, by University of Bari, by C. N. R. (Centro di Studio per la Chimica dei Plasmi and Comitato per la Chimica), by ENEA, by Lawrence Livermore Laboratory and by US Army Research Office.

Nonequilibrium Processes in Partially Ionized Gases

Nonequilibrium Processes in Partially Ionized Gases PDF Author: M. Capitelli
Publisher: Springer Science & Business Media
ISBN: 1461537800
Category : Science
Languages : en
Pages : 682

Get Book Here

Book Description
The NATO . Advanced Research Insti tute on Nonequilibrium Processes in Partially Ionized Gases was held at Acquafredda di Maratea during 4-17 June 1989. The Institute considered the interconnections between scattering and transport theories and modeling of nonequilibrium systems generated by electrical discharges, emphasizing the importance of microscopic processes in affecting the bulk properties of plasmas. The book tries to reproduce these lines. In particular several contributions describe scattering cross sections involving electrons interacting with atoms and molecules in both ground and excited states (from theoretical and experimental point of view), of energy transfer processes as well as reactive ones involving excited molecules colliding with atoms and molecules as well as with metallic surfaces. Other contributions deal with the basis of transport theories (Boltzmann and Monte Carlo methods) for describing the bulk properties of non equilibrium plasmas as well as with the modeling of complicated systems emphasizing in particular the strong coupling between the Boltzmann equation and excited state kinetics. Finally the book contains several contributions describing applications in different fields such as Excimer Lasers, Negative Ion Production, RF Discharges, Plasma Chemistry, Atmospheric Processes and Physics of Lamps. The Organizing Committee gratefully acknowledges the generous financial support provided by the NATO Science Committee as well as by Azienda Autonoma di Soggiorno e Turismo of Maratea, by University of Bari, by C. N. R. (Centro di Studio per la Chimica dei Plasmi and Comitato per la Chimica), by ENEA, by Lawrence Livermore Laboratory and by US Army Research Office.

Advances in Atomic, Molecular, and Optical Physics

Advances in Atomic, Molecular, and Optical Physics PDF Author:
Publisher: Elsevier
ISBN: 0080561446
Category : Science
Languages : en
Pages : 497

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Book Description
The latest volume in the highly acclaimed series addresses atomic collisions, assessing the status of the current knowledge, identifying deficiencies, and exploring ways to improve the quality of cross-section data.Eleven articles, written by foremost experts, focus on cross-section determination by experiment or theory, on needs in selected applications, and on efforts toward the compilation and dissemination of data. This is the first volume edited under the additional direction of Herbert Walther. Presents absolute cross sections for atomic collisions Uses benchmark measurements and benchmark calculations Discusses needs for cross-section data in applications Contains a guide to data resources, bibliographies, and compendia

Energy Research Abstracts

Energy Research Abstracts PDF Author:
Publisher:
ISBN:
Category : Power resources
Languages : en
Pages : 946

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Book Description


Non-Equilibrium Air Plasmas at Atmospheric Pressure

Non-Equilibrium Air Plasmas at Atmospheric Pressure PDF Author: K.H. Becker
Publisher: CRC Press
ISBN: 1482269120
Category : Science
Languages : en
Pages : 701

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Book Description
Atmospheric-pressure plasmas continue to attract considerable research interest due to their diverse applications, including high power lasers, opening switches, novel plasma processing applications and sputtering, EM absorbers and reflectors, remediation of gaseous pollutants, excimer lamps, and other noncoherent light sources. Atmospheric-pressu

Physics and Applications of Pseudosparks

Physics and Applications of Pseudosparks PDF Author: Martin A. Gundersen
Publisher: Springer Science & Business Media
ISBN: 146153786X
Category : Technology & Engineering
Languages : en
Pages : 359

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Book Description
The purpose of the 1989 NATO ARW was to develop applications, and an improved understanding of the physics for high current emission and conduction observed in hollow cathode-hollow anode switches including the pseudo spark and BLT. New applications include highly emissive cathodes for microwave devices, accelerators and free electron lasers, high power tubes, electron and ion beams, microlithography, accelerators, and other plasma devices. Recent research has produced a new generation of gas-phase plasma switches that are characterized by very high current emission and conduction while operating in a glow mode. These switches include the pseudospark and the BLT, both of which have hollow electrodes, switch over 10 to 100 kA peak current, and have cathodes with emission ~ 2 2 10,000 Ncm over ~ 1 cm area. The cathode properties are especially remarkable - about 2 orders of magnitude larger emission than existing thermionic cathodes. Part of the meeting was devoted to understanding these properties, and exploiting applications of this cathode. The remarkable properties of these switches are very surprising in the light of considerable previous work in this area, and these results deserve study in order to understand the underlying physical mechanisms, and to develop ideas and insight into future applications, and foster coherent research in this area. The operating cycle of pseudo-spark and BL T switches and related devices can be divided into four phases: hold-off, triggering, conduction, and recovery. There was very little discussion of the hold-off and recovery phases.

Fundamental Aspects of Plasma Chemical Physics

Fundamental Aspects of Plasma Chemical Physics PDF Author: Mario Capitelli
Publisher: Springer Science & Business Media
ISBN: 1441981853
Category : Science
Languages : en
Pages : 330

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Book Description
Describing non-equilibrium "cold" plasmas through a chemical physics approach, this book uses the state-to-state plasma kinetics, which considers each internal state as a new species with its own cross sections. Extended atomic and molecular master equations are coupled with Boltzmann and Monte Carlo methods to solve the electron energy distribution function. Selected examples in different applied fields, such as microelectronics, fusion, and aerospace, are presented and discussed including the self-consistent kinetics in RF parallel plate reactors, the optimization of negative ion sources and the expansion of high enthalpy flows through nozzles of different geometries. The book will cover the main aspects of the state-to-state kinetic approach for the description of nonequilibrium cold plasmas, illustrating the more recent achievements in the development of kinetic models including the self-consistent coupling of master equations and Boltzmann equation for electron dynamics. To give a complete portrayal, the book will assess fundamental concepts and theoretical formulations, based on a unified methodological approach, and explore the insight in related scientific problems still opened for the research community.

Plasma Technology

Plasma Technology PDF Author: M. Capitelli
Publisher: Springer Science & Business Media
ISBN: 1461534003
Category : Science
Languages : en
Pages : 226

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Book Description
The present book contains the proceedings of the workshop "Plasma Technology and Applications" which was held at 11 Ciocco (Lucca-Italy) during 5-6 July 1991. The workshop was organized just before ICPIG XX to emphasize the role of plasma physics and plasma chemistry in different fields of technology. Topics cover different applications such as lamps, plasma treatment of materials (etching, deposition, nitriding), plasma sources (microwave excitation, negative ion sources) and plasma destruction of pollutants. Several chapters deal with basic concepts in plasma physics, non equilibrium plasma modeling and plasma diagnostics as well as with laser interaction with solid targets. The authors gratefully acknowledge the financial support provided by university of Bari (Italy) and by CNR (Centro di Studio per la Chimica dei Plasmi, Istituto di Fisica Atomica e Molecolare (IFAM) and Progetto Finalizzato Materiali Speciali per Tecnologie Avanzate) as well as the sponsorship of ENEA. M. Capitelli C. Gorse v CONTENTS Plasmas in nature, laboratory and technology 1 A.M. Ignatov and A.A. Rukhadze Laser diagnostics of plasmas 11 L. Pyatnitsky Probe diagnostics of plasmas 27 G. Dilecce Theory, properties and applications of non equilibrium plasmas created by external energy sources 45 E. Son Non-Equilibrium plasma modeling 59 M. Capitel1i, R. Celiberto, G. Capriati, C. Gorse and S. Longo Gas discharge lamps 81 M. Koedam Plasma etching processes and diagnostics 93 R. d'Agostino and F. Fracassi Plasma deposition: processes and diagnostics 109 A

Molecular Physics and Hypersonic Flows

Molecular Physics and Hypersonic Flows PDF Author: M. Capitelli
Publisher: Springer Science & Business Media
ISBN: 9400902670
Category : Science
Languages : en
Pages : 798

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Book Description
Molecular Physics and Hypersonic Flows bridges the gap between the fluid dynamics and molecular physics communities, emphasizing the role played by elementary processes in hypersonic flows. In particular, the work is primarily dedicated to filling the gap between microscopic and macroscopic treatments of the source terms to be inserted in the fluid dynamics codes. The first part of the book describes the molecular dynamics of elementary processes both in the gas phase and in the interaction with surfaces by using quantum mechanical and phenomenological approaches. A second group of contributions describes thermodynamics and transport properties of air components, with special attention to the transport of internal energy. A series of papers is devoted to the experimental and theoretical study of the flow of partially ionized gases. Subsequent contributions treat modern computational techniques for 3-D hypersonic flow. Non-equilibrium vibrational kinetics are then described, together with the coupling of vibration-dissociation processes as they affect hypersonic flows. Special emphasis is given to the interfacing of non-equilibrium models with computational fluid dynamics methods. Finally, the last part of the book deals with the application of direct Monte Carlo methods in describing rarefied flows.

Proceedings of the Symposium Om Process Control, Diagnostics, and Modeling in Semiconductor Manufacturing

Proceedings of the Symposium Om Process Control, Diagnostics, and Modeling in Semiconductor Manufacturing PDF Author: M. Meyyappan
Publisher: The Electrochemical Society
ISBN: 9781566770965
Category : Technology & Engineering
Languages : en
Pages : 644

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Book Description


Advanced Technologies Based on Wave and Beam Generated Plasmas

Advanced Technologies Based on Wave and Beam Generated Plasmas PDF Author: H. Schlüter
Publisher: Springer Science & Business Media
ISBN: 9401706336
Category : Science
Languages : en
Pages : 580

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Book Description
This book draws together three areas of work on plasma technologies: advanced efforts based on wave generated, high frequency plasmas, plasma assisted ion implantation, and electron beam generated plasma. It lays a foundation for the application of sources in industry and various research areas