Interferometric Study of Density Fluctuations in a Tokamak Plasma PDF Download
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Author: Raffi Nazikian
Publisher:
ISBN:
Category : Interferometry
Languages : en
Pages :
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Author: Raffi Nazikian
Publisher:
ISBN:
Category : Interferometry
Languages : en
Pages :
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 15
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Book Description
The authors propose to employ a fast Alfven wave interferometer and reflectometer as a tokamak diagnostic to measure the plasma mass density, D-T species mix profile, and density fluctuations. Utilize the property that the phase velocity of the fast wave propagating across the magnetic field is the Alfven speed with thermal correction, this fast wave interferometer on the DIII-D tokamak was successfully used to obtain the line integrated density. Since the position of the ion-ion hybrid cut-off in tokamaks is uniquely determined by the species mix ratio and the wave frequency, the reflectometer arrangement finds the species mix profile. The inversion method of reflectometry is discussed. The multiple chord interferometer also measures the mass density fluctuation profile.
Author: Tsutomu Tetsuka
Publisher:
ISBN:
Category : Ion acoustic waves
Languages : en
Pages : 146
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Author: Ernesto Mazzucato
Publisher: World Scientific
ISBN: 9814571822
Category : Science
Languages : en
Pages : 223
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The science of magnetically confined plasmas covers the entire spectrum of physics from classical and relativistic electrodynamics to quantum mechanics. During the last sixty years of research, our initial primitive understanding of plasma physics has made impressive progress thanks to a variety of experiments — from tabletop devices with plasma temperatures of a few thousands of degrees and confinement times of less than 100 microseconds, to large tokamaks with plasma temperatures of up to five hundred million degrees and confinement times approaching one second. We discovered that plasma confinement is impaired by a variety of instabilities leading to turbulent processes with scales ranging from the plasma size to a few millimeters. Understanding these phenomena, which have slowed down progress towards a fusion reactor, requires the use of very sophisticated diagnostic tools, many of which employ electromagnetic waves.The primary objective of this book is to discuss the fundamental physics upon which the application of electromagnetic waves to the study of magnetically confined plasmas is based.
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Author: Robert Alan Terwilliger
Publisher:
ISBN:
Category :
Languages : en
Pages : 80
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Author:
Publisher:
ISBN:
Category : Power resources
Languages : en
Pages : 782
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Author: E. Mazzucato
Publisher:
ISBN:
Category : Scattering (Physics)
Languages : en
Pages : 25
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Author: United States. Energy Research and Development Administration
Publisher:
ISBN:
Category : Medicine
Languages : en
Pages : 600
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Author:
Publisher:
ISBN:
Category : Controlled fusion
Languages : en
Pages : 100
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Author: United States. Energy Research and Development Administration. Technical Information Center
Publisher:
ISBN:
Category : Force and energy
Languages : en
Pages : 588
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