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Author : Tobin Leo Munsat
Publisher :
ISBN 13 :
Total Pages : 10 pages
Book Rating : 4.:/5 (713 download)
Download or read book 2-D Imaging of Electron Temperature in Tokamak Plasmas written by Tobin Leo Munsat and published by . This book was released on 2004 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Tobin Leo Munsat
Publisher :
ISBN 13 :
Total Pages : 10 pages
Book Rating : 4.:/5 (713 download)
Download or read book 2-D Imaging of Electron Temperature in Tokamak Plasmas written by Tobin Leo Munsat and published by . This book was released on 2004 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Bihe Deng
Publisher :
ISBN 13 :
Total Pages : 542 pages
Book Rating : 4.:/5 (6 download)
Download or read book Two Dimensional Electron Cyclotron Emission Imaging Study of Electron Temperature Profiles and Fluctuations in Tokamak Plasmas written by Bihe Deng and published by . This book was released on 1999 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measurement of the Central Ion and Electron Temperature of Tokamak Plasmas from the X-ray Line Radiation of High-Z Impurity Ions written by and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper describes measurements of the central ion and electron temperature of tokamak plasmas from the observation of the 1s - 2p resonance lines, and the associated dielectronic (1s2nl - 1s2pnl, with n greater than or equal to 2) satellites, of helium-like iron (Fe XXV) and titanium (Ti XXI). The satellite to resonance line ratios are very sensitive to the electron temperature and are used as an electron temperature diagnostic. The ion temperature is deduced from the Doppler width of the 1s - 2p resonance lines. The measurements have been performed with high resolution Bragg crystal spectrometers on the PLT (Princeton Large Torus) and PDX (Poloidal Divertor Experiment) tokamaks. The details of the experimental arrangement and line evaluation are described, and the ion and electron temperature results are compared with those obtained from independent diagnostic techniques, such as the analysis of charge-exchange neutrals and measurements of the electron cyclotron radiation. The obtained experimental results permit a detailed comparison with theoretical predictions.
Author : John Lohr
Publisher : World Scientific
ISBN 13 : 9814548979
Total Pages : 678 pages
Book Rating : 4.8/5 (145 download)
Download or read book Ec-9: Proceedings Of The Ninth Joint Workshop On Electron Cyclotron Emission And Electron Cyclotron Heating written by John Lohr and published by World Scientific. This book was released on 1995-11-07 with total page 678 pages. Available in PDF, EPUB and Kindle. Book excerpt: The conference proceedings will include the papers of approximately 50 key specialists from most of the world's major fusion laboratories, including the European Community, the U.S., Russia and the PRC. The unifying themes are the emission of electron cyclotron waves by high temperature plasmas and the reciprocal process, absorption, which can be used for heating, non inductive current drive and diagnostic purposes.
Author : John Lohr
Publisher : World Scientific
ISBN 13 : 9812814647
Total Pages : 583 pages
Book Rating : 4.8/5 (128 download)
Download or read book Proceedings of the Fifteenth Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating written by John Lohr and published by World Scientific. This book was released on 2009 with total page 583 pages. Available in PDF, EPUB and Kindle. Book excerpt: These proceedings present the latest results in electron cyclotron emission, heating and current drive, with an emphasis on the physics and technology of Electron Cyclotron Emission, Electron Cyclotron Heating and Electron Cyclotron Current Drive applied to magnetic fusion research. The field is a key element in the development of fusion power and the ITER project now under construction.
Author : Tianran Liang
Publisher :
ISBN 13 : 9781303539428
Total Pages : pages
Book Rating : 4.5/5 (394 download)
Download or read book Plasma Visualization Diagnostics for the KSTAR Tokamak written by Tianran Liang and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: To understand the fundamental physical phenomena of the hot confinement plasma located inside of the controlled fusion experimental devices called Tokamaks, good spatial and temporal measurements of the electron temperature and density fluctuations are needed. Two powerful plasma visualization diagnostics, Electron Cyclotron Emission Imaging (ECEI) and Microwave Imaging Reflectometry (MIR), have been developed by the plasma diagnostic group in University of California at Davis. Unlike the conventional 1-D diagnostic methods, they are able to provide 2-D high resolution image of the electron temperature and density fluctuations.This dissertation will focus on the development of the ECEI system customized for the KSTAR tokamak in Korea. The physics principle of the electron cyclotron radiation in fusion plasmas is firstly reviewed, followed by a description of the system architecture of the ECEI diagnostic. Technology advancements in a variety of the system components are discussed, including the miniature elliptical substrate lenses, dual-dipole antennas and mixers array, quasi-optical planar filters, double down-conversion heterodyne electronics, and local oscillator power coupling. Particular emphasis is given to the design methods and major innovations in the advanced optical coupling system for the KSTAR ECEI. This includes step-by-step descriptions on the imaging lens design analysis, as well as the realization of the advanced imaging features, such as independent zoom and focus control. The development of the frequency selective surface (FSS) notch filter is also discussed in detail. The FSS's basic configurations, design principles, and the numerical design tools will be discussed. The previous notch filter designs as well as the new generation multilayer configuration, which brings significant performance improvements, will be summarized. The laboratory testing platform and the fabrication considerations will also be presented. The KSTAR ECEI diagnostic, fabricated and installed in 2010, represents a new benchmark in imaging diagnostic system in terms of plasma coverage, resolution, and imaging flexibility. It also represents a major step forward in the standardization of many ECEI system components, such as dual detector array with mini lens and planar quasi-optical filter components.
Author : Benjamin John Tobias
Publisher :
ISBN 13 : 9781109485493
Total Pages : pages
Book Rating : 4.4/5 (854 download)
Download or read book Design and Implementation of an Electron Cyclotron Emission Imaging Diagnostic for the TEXTOR Tokamak written by Benjamin John Tobias and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The advancement of magnetic confinement nuclear fusion toward a viable source of energy on the scale of today's conventional power plants requires the development of a broad range of instruments for use in present day experimental fusion reactors. A class of plasma diagnostic systems that make use of electromagnetic emission from free electrons includes Electron Cyclotron Emission Imaging (ECEI), conceived at the University of California at Davis as an extension of ECE radiometry. A new ECEI system with unique capabilities is designed and realized for use on the Tokamak Experiment for Technology Oriented Research (TEXTOR), a toroidal plasma confinement device located at Forschungszentrum Jülich, Germany. The TEXTOR ECEI system is capable of 128 channel (16 vertical by 8 radial) 2-D imaging of electron temperature fluctuations below 1% in the poloidal plane on [mu]s time scales. Advancements in a variety of millimeter wave technologies are discussed, including the development of dual-dipole antennas and miniature elliptical substrate lenses, planar quasi-optical notch filters, dichroic plate high-pass filters, dielectric film beamsplitters, RF electronics for double down-conversion heterodyne frequency mixing and signal detection, and optical coupling of electron cyclotron emission signals and local oscillator power. Particular emphasis is given to the development of a new heuristic for the design of optical coupling systems for millimeter wave imaging arrays which has resulted in the realization of the feature of independent vertical zoom, new to ECEI, by which the vertical extent of the plasma image may be continuously varied from 20 to 35 cm. The new TEXTOR ECEI system is compared in laboratory characterization to the legacy ECEI system, which it replaced in 2008, to reveal dramatic improvements in image quality, optical performance, and system noise temperature. Finally, the installation of this diagnostic is discussed and data obtained during commissioning are presented. A look forward to continuing projects in the field of ECEI reveals an exciting future for the technology with growing international collaboration and invaluable contributions to the effort to develop energy resources that may some day eliminate mankind's dependence on fossil fuels.
Author : John Lohr
Publisher : World Scientific
ISBN 13 : 9814470996
Total Pages : 583 pages
Book Rating : 4.8/5 (144 download)
Download or read book Electron Cyclotron Emission And Electron Cyclotron Resonance Heating (Ec-15) - Proceedings Of The 15th Joint Workshop (With Cd-rom) written by John Lohr and published by World Scientific. This book was released on 2009-04-15 with total page 583 pages. Available in PDF, EPUB and Kindle. Book excerpt: These proceedings present the latest results in electron cyclotron emission, heating and current drive, with an emphasis on the physics and technology of Electron Cyclotron Emission, Electron Cyclotron Heating and Electron Cyclotron Current Drive applied to magnetic fusion research. The field is a key element in the development of fusion power and the ITER project now under construction.
Author : Ruth Laengner
Publisher : Forschungszentrum Jülich
ISBN 13 : 3893369244
Total Pages : 175 pages
Book Rating : 4.8/5 (933 download)
Download or read book Material Migration in Tokamak Plasmas with a Three-dimensional Boundary written by Ruth Laengner and published by Forschungszentrum Jülich. This book was released on 2013 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Gerardo Giruzzi
Publisher : World Scientific
ISBN 13 : 9814487295
Total Pages : 613 pages
Book Rating : 4.8/5 (144 download)
Download or read book Electron Cyclotron Emission And Electron Cyclotron Heating (Ec12), Proceedings Of The 12th Joint Workshop written by Gerardo Giruzzi and published by World Scientific. This book was released on 2003-02-21 with total page 613 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 12th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating (EC-12) was held in Aix-en-Provence (France) from May 13 to 16, 2002. This workshop was concerned with the interaction of electromagnetic waves and hot plasmas, a subject of great importance in the framework of research on controlled thermonuclear fusion. Using as a fuel a mixture of deuterium and tritium, which can be extracted from sea water, this is a very promising way to develop an intrinsically safe reactor. The workshop gathered approximately one hundred specialists in the production, use and theory of millimetre waves for heating and diagnostics of fusion plasmas.
Author : Giuseppe Gorini
Publisher : Springer Science & Business Media
ISBN 13 : 1461303699
Total Pages : 631 pages
Book Rating : 4.4/5 (613 download)
Download or read book Diagnostics for Experimental Thermonuclear Fusion Reactors written by Giuseppe Gorini and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 631 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book of proceedings collects the papers presented at the Workshop on Diagnostics for ITER, held at Villa Monastero, Varenna (Italy), from August 28 to September 1, 1995. The Workshop was organised by the International School of Plasma Physics "Piero Caldirola. " Established in 1971, the ISPP has organised over fifty advanced courses and workshops on topics mainly related to plasma physics. In particular, courses and workshops on plasma diagnostics (previously held in 1975, 1978, 1982, 1986, and 1991) can be considered milestones in the history of this institution. Looking back at the proceedings of the previous meetings in Varenna, one can appreciate the rapid progress in the field of plasma diagnostics over the past 20 years. The 1995 workshop was co-organised by the Istituto di Fisica del Plasma of the National Research Council (CNR). In contrast to previous Varenna meetings on diagnostics, which have covered diagnostics in present-day tokamaks and which have had a substantial tutorial component, the 1995 workshop concentrated specifically on the problems and challenges of ITER diagnostics. ITER (the International Thennonuclear Experimental Reactor, a joint venture of Europe, Japan, Russia, and the United States, presently under design) will need to measure a wide range of plasma parameters in order to reach and sustain high levels of fusion power. A list of the measurement requirements together with the parameter ranges, target measurement resolutions, and accuracies provides the starting point for selecting a list of candidate diagnostic systems.
Author : Dwight L. Woolard
Publisher : World Scientific
ISBN 13 : 9812383344
Total Pages : 360 pages
Book Rating : 4.8/5 (123 download)
Download or read book Terahertz Sensing Technology: Electronic devices and advanced systems technology written by Dwight L. Woolard and published by World Scientific. This book was released on 2003 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: The last research frontier in high frequency electronics now lies in the so-called THz (or submillimeter-wave) regime between the traditional microwave and infrared domains. Significant scientific and technical challenges within the terahertz (THz) frequency regime have recently motivated an array of new research activities. During the last few years, major research programs have emerged that are focused on advancing the state of the art in THz frequency electronic technology and on investigating novel applications of THz frequency sensing. This book serves as a detailed reference for the new THz frequency technological advances that are emerging across a wide spectrum of sensing and technology areas.
Author :
Publisher :
ISBN 13 :
Total Pages : 122 pages
Book Rating : 4.3/5 (91 download)
Download or read book Fusion Energy Update written by and published by . This book was released on 1980 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 782 pages
Book Rating : 4.3/5 (129 download)
Download or read book Energy Research Abstracts written by and published by . This book was released on 1995 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 704 pages
Book Rating : 4.:/5 (31 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Michael S Shur
Publisher : World Scientific
ISBN 13 : 9814486302
Total Pages : 360 pages
Book Rating : 4.8/5 (144 download)
Download or read book Terahertz Sensing Technology - Vol 1: Electronic Devices And Advanced Systems Technology written by Michael S Shur and published by World Scientific. This book was released on 2003-07-14 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: The last research frontier in high frequency electronics now lies in the so-called THz (or submillimeter-wave) regime between the traditional microwave and infrared domains. Significant scientific and technical challenges within the terahertz (THz) frequency regime have recently motivated an array of new research activities. During the last few years, major research programs have emerged that are focused on advancing the state of the art in THz frequency electronic technology and on investigating novel applications of THz frequency sensing. This book serves as a detailed reference for the new THz frequency technological advances that are emerging across a wide spectrum of sensing and technology areas.
