On the Murakami Density Limit in Tokamaks and Reversed-field Pinches PDF Download
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Author: Francis W. Perkins
Publisher:
ISBN:
Category :
Languages : en
Pages : 32
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Author: Francis W. Perkins
Publisher:
ISBN:
Category :
Languages : en
Pages : 32
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Book Description
Author:
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Category :
Languages : en
Pages :
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A theoretical upper limit for the density in an ohmically heated tokamak discharge follows from the requirement that the ohmic heating power deposited in the central current-carrying channel exceed the impurity radiative cooling in this critical region. A compact summary of our results gives this limit n/sub M/ for the central density as n/sub M/ = (Z/sub e//(Z/sub e/-1)12n/sub eo/ (B/sub T//1T)(1m/R) where n/sub eo/ depends strongly on the impurity species and is remarkably independent of the central electron temperature T/sub e/(0). For T/sub e/(0) approx. 1 keV, we have n/sub eo/ = 1.5 x 1014 cm−3 for beryllium, n/sub eo/ = 5 x 1013 cm−3 for oxygen, n/sub eo/ = 1.0 x 1013 cm−3 for iron, and n/sub eo/ = 0.5 x 1013 cm−3 for tungsten. The results agree quantitatively with Murakami's original observations. A similar density limit, known as the I/N limit, exists for reversed-field pinch devices and this limit has also been evaluated for a variety of impurity species.
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Category : Power resources
Languages : en
Pages : 490
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Category : Controlled fusion
Languages : en
Pages : 294
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Author:
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ISBN:
Category : Power resources
Languages : en
Pages : 900
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Semiannual, with semiannual and annual indexes. References to all scientific and technical literature coming from DOE, its laboratories, energy centers, and contractors. Includes all works deriving from DOE, other related government-sponsored information, and foreign nonnuclear information. Arranged under 39 categories, e.g., Biomedical sciences, basic studies; Biomedical sciences, applied studies; Health and safety; and Fusion energy. Entry gives bibliographical information and abstract. Corporate, author, subject, report number indexes.
Author: Masahiro Wakatani
Publisher: Oxford University Press, USA
ISBN: 9780195078312
Category : Language Arts & Disciplines
Languages : en
Pages : 462
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This monograph describes plasma physics for magnetic confinement of high temperature plasmas in nonaxisymmetric toroidal magnetic fields or stellarators. The techniques are aimed at controlling nuclear fusion for continuous energy production. While the focus is on the nonaxisymmetric toroidal field, or heliotron, developed at Kyoto University, the physics applies equally to other stellarators and axisymmetric tokamaks. The author covers all aspects of magnetic confinement, formation of magnetic surfaces, magnetohydrodynamic equilibrium and stability, single charged particle confinement, neoclassical transport and plasma heating. He also reviews recent experiments and the prospects for the next generation of devices.
Author: Robert Besancon
Publisher: Springer Science & Business Media
ISBN: 1461569028
Category : Science
Languages : en
Pages : 1393
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Author:
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Category : Science
Languages : en
Pages : 1042
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Category : Power resources
Languages : en
Pages : 676
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Author: Linjin Zheng
Publisher: Morgan & Claypool Publishers
ISBN: 1627054235
Category : Science
Languages : en
Pages : 156
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Book Description
This book describes the advanced stability theories for magnetically confined fusion plasmas, especially in tokamaks. As the fusion plasma sciences advance, the gap between the textbooks and cutting-edge researches gradually develops. This book fills in
