Doppler Measurements in the Edge of the Alcator C-Mod Tokamak Using a High-resolution Visible Spectrometer

Doppler Measurements in the Edge of the Alcator C-Mod Tokamak Using a High-resolution Visible Spectrometer
Title Doppler Measurements in the Edge of the Alcator C-Mod Tokamak Using a High-resolution Visible Spectrometer PDF eBook
Author Alexander Turner Graf
Publisher
Pages 390
Release 2008
Genre
ISBN

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Iter Physics

Iter Physics
Title Iter Physics PDF eBook
Author C Wendell Horton, Jr
Publisher World Scientific
Pages 248
Release 2015-06-25
Genre Science
ISBN 9814678686

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The promise of a vast and clean source of thermal power drove physics research for over fifty years and has finally come to collimation with the international consortium led by the European Union and Japan, with an agreement from seven countries to build a definitive test of fusion power in ITER. It happened because scientists since the Manhattan project have envisioned controlled nuclear fusion in obtaining energy with no carbon dioxide emissions and no toxic nuclear waste products.This large toroidal magnetic confinement ITER machine is described from confinement process to advanced physics of plasma-wall interactions, where pulses erupt from core plasma blistering the machine walls. Emissions from the walls reduce the core temperature which must remain ten times hotter than the 15 million degree core solar temperature to maintain ITER fusion power. The huge temperature gradient from core to wall that drives intense plasma turbulence is described in detail.Also explained are the methods designed to limit the growth of small magnetic islands, the growth of edge localized plasma plumes and the solid state physics limits of the stainless steel walls of the confinement vessel from the burning plasma. Designs of the wall coatings and the special 'exhaust pipe' for spent hot plasma are provided in two chapters. And the issues associated with high-energy neutrons — about 10 times higher than in fission reactions — and how they are managed in ITER, are detailed.

Modeling and Analysis of the DIII-D Tokamak Scrape-off Layer and Divertor

Modeling and Analysis of the DIII-D Tokamak Scrape-off Layer and Divertor
Title Modeling and Analysis of the DIII-D Tokamak Scrape-off Layer and Divertor PDF eBook
Author Quang Thanh Nguyen
Publisher
Pages 238
Release 1995
Genre
ISBN

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Issues in Nuclear, High Energy, Plasma, Particle, and Condensed Matter Physics: 2013 Edition

Issues in Nuclear, High Energy, Plasma, Particle, and Condensed Matter Physics: 2013 Edition
Title Issues in Nuclear, High Energy, Plasma, Particle, and Condensed Matter Physics: 2013 Edition PDF eBook
Author
Publisher ScholarlyEditions
Pages 1198
Release 2013-05-01
Genre Science
ISBN 1490107819

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Issues in Nuclear, High Energy, Plasma, Particle, and Condensed Matter Physics: 2013 Edition is a ScholarlyEditions™ book that delivers timely, authoritative, and comprehensive information about High Energy Physics. The editors have built Issues in Nuclear, High Energy, Plasma, Particle, and Condensed Matter Physics: 2013 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about High Energy Physics in this book to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Issues in Nuclear, High Energy, Plasma, Particle, and Condensed Matter Physics: 2013 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.

The Plasma Boundary of Magnetic Fusion Devices

The Plasma Boundary of Magnetic Fusion Devices
Title The Plasma Boundary of Magnetic Fusion Devices PDF eBook
Author P.C Stangeby
Publisher CRC Press
Pages 738
Release 2000-01-01
Genre Science
ISBN 9780750305594

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The Plasma Boundary of Magnetic Fusion Devices introduces the physics of the plasma boundary region, including plasma-surface interactions, with an emphasis on those occurring in magnetically confined fusion plasmas. The book covers plasma-surface interaction, Debye sheaths, sputtering, scrape-off layers, plasma impurities, recycling and control, 1D and 2D fluid and kinetic modeling of particle transport, plasma properties at the edge, diverter and limiter physics, and control of the plasma boundary. Divided into three parts, the book begins with Part 1, an introduction to the plasma boundary. The derivations are heuristic and worked problems help crystallize physical intuition, which is emphasized throughout. Part 2 provides an introduction to methods of modeling the plasma edge region and for interpreting computer code results. Part 3 presents a collection of essays on currently active research hot topics. With an extensive bibliography and index, this book is an invaluable first port-of-call for researchers interested in plasma-surface interactions.

Turbulent Transport In Magnetized Plasmas (Second Edition)

Turbulent Transport In Magnetized Plasmas (Second Edition)
Title Turbulent Transport In Magnetized Plasmas (Second Edition) PDF eBook
Author C Wendell Horton, Jr
Publisher #N/A
Pages 522
Release 2017-07-21
Genre Science
ISBN 9813225904

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For a few seconds with large machines, scientists and engineers have now created the fusion power of the stars in the laboratory and at the same time find the rich range of complex turbulent electromagnetic waves that transport the plasma confinement systems. The turbulent transport mechanisms created in the laboratory are explained in detail in the second edition of 'Turbulent Transport in Magnetized Plasmas' by Professor Horton.The principles and properties of the major plasma confinement machines are explored with basic physics to the extent currently understood. For the observational laws that are not understood — the empirical confinement laws — offering challenges to the next generation of plasma students and researchers — are explained in detail. An example, is the confinement regime — called the 'I-mode' — currently a hot topic — is explored.Numerous important problems and puzzles for the next generation of plasma scientists are explained. There is growing demand for new simulation codes utilizing the massively parallel computers with MPI and GPU methods. When the 20 billion dollar ITER machine is tested in the 2020ies, new theories and faster/smarter computer simulations running in near real-time control systems will be used to control the burning hydrogen plasmas.

The Dynamics of Electrons in Linear Plasma Devices and Its Impact on Plasma Surface Interaction

The Dynamics of Electrons in Linear Plasma Devices and Its Impact on Plasma Surface Interaction
Title The Dynamics of Electrons in Linear Plasma Devices and Its Impact on Plasma Surface Interaction PDF eBook
Author Michael Hubeny
Publisher Springer
Pages 137
Release 2019-02-15
Genre Science
ISBN 303012536X

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Turbulence in plasma surface interaction holds crucial uncertainties for its impact on material erosion in the operation of fusion reactors. In this thesis, the design, development and operation of a Thomson scattering diagnostic and its novel implementation with fast visual imaging created a versatile tool to investigate intermittently occuring plasma oscillations. Specifically, ballistic transport events in the plasma edge, constituting turbulent transport, have been targeted in this thesis. With the help of a custom photon counting algorithm, the conditional averaging technique was applied on Thomson scattering for the first time to allow spatial and pseudo-time-resolved measurements. Since plasma turbulence and the emerging transport phenomena are comparable in most magnetized devices, the diagnostic development and the results from the linear plasma device PSI-2 are useful for an implementation of similar techniques in larger fusion experiments. Furthermore, the obtained results indicate a strong enhancement of erosion with turbulent transport and thus underline the importance of dedicated experiments investigating plasma turbulence in the framework of erosion in future fusion reactors.