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Author:
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ISBN:
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Languages : en
Pages :
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Book Description
A review of the most important reactions of atomic and molecular hydrogen with the fusion edge plasma electrons and ions is presented. An appropriate characterization of the considered collision processes, useful in plasma edge studies (evaluated cross sections, reaction rates, energy gain/loss per collision, etc.) has been performed. While a complete survey of atomic physics of fusion edge plasmas will be given elsewhere shortly, we demonstrate here the relevance of the atomic collision processes for describing the physical state of edge plasmas and understanding the energy balance in cool divertor plasmas. It is found that the excited neutral species play an important role in the low-temperature, high-density plasmas.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
A review of the most important reactions of atomic and molecular hydrogen with the fusion edge plasma electrons and ions is presented. An appropriate characterization of the considered collision processes, useful in plasma edge studies (evaluated cross sections, reaction rates, energy gain/loss per collision, etc.) has been performed. While a complete survey of atomic physics of fusion edge plasmas will be given elsewhere shortly, we demonstrate here the relevance of the atomic collision processes for describing the physical state of edge plasmas and understanding the energy balance in cool divertor plasmas. It is found that the excited neutral species play an important role in the low-temperature, high-density plasmas.
Author: R.K. Janev
Publisher: Springer Science & Business Media
ISBN: 1475793197
Category : Science
Languages : en
Pages : 509
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Book Description
This well-illustrated resource provides vital cross-section information for the atomic and molecular collision processes taking place in the boundary region of magnetically confined fusion plasmas and in other laboratory and astrophysical low-temperature plasmas. The expertly assessed information in this noteworthy volume includes the most recent experimental and theoretical results presented in a convenient format. Coverage includes the processes of electron-impact excitation and ionization of plasma edge atoms, electron-ion recombination, dissociative collision processes involving electrons and much more.
Author: Ratko Janev
Publisher:
ISBN: 9781475793208
Category :
Languages : en
Pages : 520
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Book Description
Author: Ratko K. Janev
Publisher: Elsevier Publishing Company
ISBN:
Category : Science
Languages : en
Pages : 502
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Book Description
Atomic and plasma-material interaction processes play an important role in thermonuclear fusion plasmas and the knowledge of these processes has a significant impact on fusion energy research and development. The present volume provides a comprehensive survey of atomic and plasma-material interaction aspects of controlled thermonuclear fusion. The review articles included in this volume describe the role of atomic and plasma-material interaction processes in the currently most active fusion research areas and emphasize the need for accurate quantitative information on these processes for resolving many outstanding issues in fusion research and reactor design development such as plasma energy balance, particle transport and confinement, impurity control, thermal power and helium exhaust, plasma heating and fuelling, edge plasma physics, development of fusion reactor plasma facing components and plasma diagnostics and modelling.
Author: Hiroyuki Tawara
Publisher:
ISBN:
Category : Hydrocarbons
Languages : en
Pages : 95
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Book Description
Author: Chii-dong Lin
Publisher: World Scientific
ISBN: 9814502723
Category : Science
Languages : en
Pages : 629
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Book Description
This book reviews the major progress made in the fields of atomic, molecular and optical physics in the last decade. It contains eleven chapters in which contributors have highlighted the major accomplishments made in a given subfield. Each chapter is not a comprehensive review, but rather a succinct survey of the most interesting developments achieved in recent years. This book contains information on many AMO subfields and can be used as a textbook for graduate students interested in entering AMO physics. It may also serve researchers who wish to familiarize themselves with other AMO subfields.
Author: Earl S. Marmar
Publisher: American Institute of Physics
ISBN:
Category : Education
Languages : en
Pages : 208
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Book Description
The proceedings of an international conference in Portland, Maine, August 1991, presenting 16 of the 25 invited papers on the atomic physics in plasmas. Combining literature reviews and original research findings, the sections cover collision processes, dense plasmas, tokamaks, plasma processing, an
Author: Vitaly D. Shafranov
Publisher: Springer Science & Business Media
ISBN: 1461500273
Category : Science
Languages : en
Pages : 293
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Book Description
Reviews of Plasma Physics, Volume 23, presents two high quality reviews from the cutting-edge of Russian plasma physics research: "Plasma Models of Atom and Radiative-Collisional Processes", by V.A. Astapenko, L.A. Bureyeva, V.S. Lisitsa, is devoted to a unified description of the atomic core polarization effects in the free-free, free-bound and bound-bound transitions of the charged particles in the field of multielectron atom. "Asymptotic Theory of Charge Exchange And Mobility Processes for Atomic Ions" by B.M. Smirnov reviews the process of resonant charge exchange, and also the transport processes (mobility and diffusion coefficients) for ions in parent gases which are determined by resonant electron transfer.
Author: Divertor and Edge Plasma Theory W Group
Publisher: Forgotten Books
ISBN: 9780331794793
Category : Science
Languages : en
Pages : 56
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Book Description
Excerpt from A Survey of Problems in Divertor and Edge Plasma Theory On the bases of expected fusion energy production in a fusion reactor and of the energy and particle confinement in tokamaks as presently observed and understood, it is clear that a major design problem for a tokamak reactor is the development of a technique to accept the huge heat and particle fluxes at the first wall. At the same time there should not be a significant impurity reflux into the device. The introduction of a divertor is considered the best solution to the problem of absorbing the fluxes leaving the tokamak while maintaining a pure plasma. The iter cda has identified the divertor design as one of the most difficult design tasks The divertor design has also been a major issue for bpx-cit and tpx. The studies of demo and tokamak reactors also identify the divertor action as a critical item for successful tokamak operation. Given the importance of the divertor, it is no surprise that some time ago major efforts were established to model the plasma outside the separatrix. Typically these codes, of which many exist worldwide, follow the plasma, heat flows, neutrals and impurities in the region from the separatrix to the divertor plates. The system is often conceptually divided into a scrape-off layer adjacent to the core plasma and the somewhat distinct divertor region. These codes demand information from more or less standard fusion plasma physics, the physics of sheaths, and extensive data on atomic and molecular processes and surface physics. The experimental database on the scrape-off layer and divertor is presently rather limited, but in the near future extensive experimental information to compare against model predictions will become available. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: C.H. Wu
Publisher: Springer Science & Business Media
ISBN: 9401143315
Category : Technology & Engineering
Languages : en
Pages : 351
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Book Description
One of the most important issues in the construction of future magnetic confinement fusion machines is that of the materials of which they are constructed, and one of the key points of proper material choice is the recycle of hydrogen isotopes with materials at the plasma face. Tritium machines demand high safety and economy, which in turn requires the lowest possible T inventory and smallest possible permeation through the plasma facing materials. The recycle behaviour of the in-vessel components must also be known if the plasma reaction is to predictable and controllable, and finally, the fuel cycle and plasma operating regimes may be actively controlled by special materials and methods. The book discusses both laboratory experiments exploring the basic properties of non-equilibrium hydrogen-solid systems (diffusion, absorption, boundary processes) and experimental results obtained from existing fusion machines under conditions simulating future situations to some extent. Contributions are from experts in the fields of nuclear fusion, materials science, surface science, vacuum science and technology, and solid state physics.
