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Nuclear Fusion Research

Author : Robert E. H. Clark

Publisher : Springer Science & Business Media

Page : 467 pages

File Size : 27,68 MB

Release : 2006-01-20

Category : Science

ISBN : 354027362X

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Book Description

It became clear in the early days of fusion research that the effects of the containment vessel (erosion of "impurities") degrade the overall fusion plasma performance. Progress in controlled nuclear fusion research over the last decade has led to magnetically confined plasmas that, in turn, are sufficiently powerful to damage the vessel structures over its lifetime. This book reviews current understanding and concepts to deal with this remaining critical design issue for fusion reactors. It reviews both progress and open questions, largely in terms of available and sought-after plasma-surface interaction data and atomic/molecular data related to these "plasma edge" issues.





Plasma-Surface Interactions and Processing of Materials

Author : O. Auciello

Publisher : Springer Science & Business Media

Page : 548 pages

File Size : 22,35 MB

Release : 2012-12-06

Category : Science

ISBN : 9400919468

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Book Description

An understanding of the processes involved in the basic and applied physics and chemistry of the interaction of plasmas with materials is vital to the evolution of technologies such as those relevant to microelectronics, fusion and space. The subjects dealt with in the book include: the physics and chemistry of plasmas, plasma diagnostics, physical sputtering and chemical etching, plasma assisted deposition of thin films, ion and electron bombardment, and plasma processing of inorganic and polymeric materials. The book represents a concentration of a substantial amount of knowledge acquired in this area - knowledge which was hitherto widely scattered throughout the literature - and thus establishes a baseline reference work for both established and tyro research workers.





Unified Study of Plasma-Surface Interactions for Space Power and Propulsion

Author :

Publisher :

Page : 39 pages

File Size : 42,3 MB

Release : 1986

Category :

ISBN :

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Book Description

A study is made of interaction between plasmas, whose parameters are typical of high specific power, high specific impulse devices, and various conducting and insulating surfaces. This study is carried out using metallic and dielectric surfaces arranged perpendicular (facing upstream and downstream) and parallel to phenomena, when they have been investigated at all, have been studied under the parameter constraints of particular devices, usually under conditions of poor diagnostic accessibility. The present study is carried out under conditions that allow better diagnostic examination of the plasma-surface region with the ability to vary plasma parameters, flow relative to the samples, electrical conduction to the (metal) samples, etc. The aim is to delineate the basic physics of plasma-surface interaction under conditions applicable to the design of space power and propulsion systems. The arcjet will be installed and tested; the downstream plasma flow will be examined and its parameters (temperature, composition, density, flow velocity, etc.) will be correlated with the variation in the discharge energy and other parameter of the thruster.







Plasma Simulations by Example

Author : Lubos Brieda

Publisher : CRC Press

Page : 348 pages

File Size : 20,70 MB

Release : 2019-12-13

Category : Science

ISBN : 0429801068

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Book Description

The study of plasmas is crucial in improving our understanding of the universe, and they are being increasingly utilised in key technologies such as spacecraft thrusters, plasma medicine, and fusion energy. Providing readers with an easy to follow set of examples that clearly illustrate how simulation codes are written, this book guides readers through how to develop C++ computer codes for simulating plasmas primarily with the kinetic Particle in Cell (PIC) method. This text will be invaluable to advanced undergraduates and graduate students in physics and engineering looking to learn how to put the theory to the test. Features: Provides a step-by-step introduction to plasma simulations with easy to follow examples Discusses the electrostatic and electromagnetic Particle in Cell (PIC) method on structured and unstructured meshes, magnetohydrodynamics (MHD), and Vlasov solvers Covered topics include Direct Simulation Monte Carlo (DSMC) collisions, surface interactions, axisymmetry, and parallelization strategies. Lubos Brieda has over 15 years of experience developing plasma and gas simulation codes for electric propulsion, contamination transport, and plasma-surface interactions. As part of his master’s research work, he developed a 3D ES-PIC electric propulsion plume code, Draco, which is to this date utilized by government labs and private aerospace firms to study plasma thruster plumes. His Ph.D, obtained in 2012 from George Washington University, USA, focused on a multi-scale model for Hall thrusters utilizing fluid-kinetic hybrid PIC codes. He has since then been involved in numerous projects involving development and the use of plasma simulation tools. Since 2014 he has been teaching online courses on plasma simulations through his website: particleincell.com.



Electroreflectance and the Problem of Studying Plasma-surface Interactions

Author :

Publisher :

Page : 6 pages

File Size : 35,84 MB

Release : 1995

Category :

ISBN :

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Book Description

A long standing problem in low-temperature plasma discharge physics is to understand in detail the mutual interaction of real exposed surfaces (electrodes) with the reactive plasma environment. In particular, one wishes to discern the influence of these surfaces on the plasma parameters given their contributions from secondary electrons and ions. This paper briefly reviews the known surface interaction processes as well as currently available diagnostics to study the interface between plasmas and surfaces. Next comes a discussion describing the application of plasma-modulated electroreflectance to this research and some potential experimental techniques.