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Toroidal Alfven Wave Stability In Ignited Tokamaks
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Book Synopsis Toroidal Alfven Wave Stability in Ignited Tokamaks by :
Download or read book Toroidal Alfven Wave Stability in Ignited Tokamaks written by and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The effects of fusion-product alpha particles on the stability of global-type shear Alfven waves in an ignited tokamak plasma are investigated in toroidal geometry. Finite toroidicity can lead to stabilization of the global Alfven eigenmodes, but it induces a new global shear Alfven eigenmodes, which is strongly destabilized via transit resonance with alpha particles. 8 refs., 2 figs.
Book Synopsis Toroidal Alfvén Wave Stability in Ignited Tokamaks by : C. Z. Cheng
Download or read book Toroidal Alfvén Wave Stability in Ignited Tokamaks written by C. Z. Cheng and published by . This book was released on 1989 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Alfven Wave Studies on a Tokamak by : David Kortbawi
Download or read book Alfven Wave Studies on a Tokamak written by David Kortbawi and published by . This book was released on 1987 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Magnetohydrodynamic Stability of Tokamaks by : Hartmut Zohm
Download or read book Magnetohydrodynamic Stability of Tokamaks written by Hartmut Zohm and published by John Wiley & Sons. This book was released on 2014-11-24 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book bridges the gap between general plasma physics lectures and the real world problems in MHD stability. In order to support the understanding of concepts and their implication, it refers to real world problems such as toroidal mode coupling or nonlinear evolution in a conceptual and phenomenological approach. Detailed mathematical treatment will involve classical linear stability analysis and an outline of more recent concepts such as the ballooning formalism. The book is based on lectures that the author has given to Master and PhD students in Fusion Plasma Physics. Due its strong link to experimental results in MHD instabilities, the book is also of use to senior researchers in the field, i.e. experimental physicists and engineers in fusion reactor science. The volume is organized in three parts. It starts with an introduction to the MHD equations, a section on toroidal equilibrium (tokamak and stellarator), and on linear stability analysis. Starting from there, the ideal MHD stability of the tokamak configuration will be treated in the second part which is subdivided into current driven and pressure driven MHD. This includes many examples with reference to experimental results for important MHD instabilities such as kinks and their transformation to RWMs, infernal modes, peeling modes, ballooning modes and their relation to ELMs. Finally the coverage is completed by a chapter on resistive stability explaining reconnection and island formation. Again, examples from recent tokamak MHD such as sawteeth, CTMs, NTMs and their relation to disruptions are extensively discussed.
Author :Marshall N. Rosenbluth Publisher :Springer Science & Business Media ISBN 13 :9781563961311 Total Pages :514 pages Book Rating :4.9/5 (613 download)
Book Synopsis New Ideas in Tokamak Confinement by : Marshall N. Rosenbluth
Download or read book New Ideas in Tokamak Confinement written by Marshall N. Rosenbluth and published by Springer Science & Business Media. This book was released on 1997-05-08 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt: Market: Scientists and students involved in thermonuclear fusion research. Thermonuclear fusion research using the confinement device tokamak represents one of the most prominent science projects in the second half of the 20th century. International Tokamak Community is now committing significant effort and funds to experiments with burning plasma, hot and dense enough to produce significant nuclear fusion reactions. The methods used to enhance tokamak performance have a profound and immediate effect on machine design. This book provides an up-to-date account of research in tokamak fusion and puts forward innovative ideas in confinement physics.
Book Synopsis Topics in stability and transport in tokamaks by : Guy-Yong Fu
Download or read book Topics in stability and transport in tokamaks written by Guy-Yong Fu and published by . This book was released on 1988 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Toroidal Effects on the Alfven Resonance in the Phaedrus-T Tokamak by : Mirko Vuković
Download or read book Toroidal Effects on the Alfven Resonance in the Phaedrus-T Tokamak written by Mirko Vuković and published by . This book was released on 1995 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Stability Properties of Toroidal Alfven Modes Driven by Fast Particles by : N. N. Gorelenkov
Download or read book Stability Properties of Toroidal Alfven Modes Driven by Fast Particles written by N. N. Gorelenkov and published by . This book was released on 1999 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis High-n Ideal and Resistive Shear Alfven Waves in Tokamaks by :
Download or read book High-n Ideal and Resistive Shear Alfven Waves in Tokamaks written by and published by . This book was released on 1984 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Ideal and resistive MHD equations for the shear Alfven waves are studied in a low-.beta. toroidal model by employing the high-n ballooning formalism. The ion sound effects are neglected. For an infinite shear slab, the ideal MHD model gives rise to a continuous spectrum of real frequencies and discrete eigenmodes (Alfven-Landau modes) with complex frequencies. With toroidal coupling effects due to nonuniform toroidal magnetic field, the continuum is broken up into small continuum bands and new discrete toroidal eigenmodes can exist inside the continuum gaps. Unstable ballooning eigenmodes are also introduced by the bad curvature when .beta.> .beta./sub c/. The resistivity (n) can be considered perturbatively for the ideal modes. In addition, four branches of resistive modes are induced by the resistivity: (1) Resistive entropy modes which are stable (.delta.' 0) with frequencies approaching zero as n35, (3) Resistive periodic shear Alfven waves which approach the finite frequency end points of the continuum bands and n12, and (4) Resistive ballooning modes which are purely growing with growth rate proportional to eta13.beta.23 as eta .--. O and .beta. .-->. O.
Book Synopsis Advanced Tokamak Stability Theory by : Linjin Zheng
Download or read book Advanced Tokamak Stability Theory written by Linjin Zheng and published by Morgan & Claypool Publishers. This book was released on 2014-04-01 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Book Synopsis Ideal MHD Equilibrium and Stability of Tokamaks with Asymmetric Cross Section by : Hollis Emmett Dalhed
Download or read book Ideal MHD Equilibrium and Stability of Tokamaks with Asymmetric Cross Section written by Hollis Emmett Dalhed and published by . This book was released on 1980 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Alpha Particle Destabilization of the Toroidicity-induced Alfven Eigenmodes by :
Download or read book Alpha Particle Destabilization of the Toroidicity-induced Alfven Eigenmodes written by and published by . This book was released on 1990 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: The high frequency, low mode number toroidicity-induced Alfven eigenmodes (TAE) are shown to be driven unstable by the circulating and/or trapped?-particles through the wave-particle resonances. Satisfying the resonance condition requires that the?-particle birth speed v{sub?} ≥ v{sub A}/2{vert bar}m-nq{vert bar}, where v{sub A} is the Alfven speed, m is the poloidal model number, and n is the toroidal mode number. To destabilize the TAE modes, the inverse Landau damping associated with the?-particle pressure gradient free energy must overcome the velocity space Landau damping due to both the?-particles and the core electrons and ions. The growth rate was studied analytically with a perturbative formula derived from the quadratic dispersion relation, and numerically with the aid of the NOVA-K code. Stability criteria in terms of the?-particle beta?{sub?},?-particle pressure gradient parameter (?{sub {asterisk}}/?{sub A}) (?{sub {asterisk}} is the?-particle diamagnetic drift frequency), and (v{sub {alpha}}/v{sub A}) parameters will be presented for TFTR, CIT, and ITER tokamaks. The volume averaged {alpha}-particle beta threshold for TAE instability also depends sensitively on the core electron and ion temperature. Typically the volume averaged {alpha}-particle beta threshold is in the order of 10−4. Typical growth rates of the n=1 TAE mode can be in the order of 10−2?{sub A}, where?{sub A}=v{sub A}/qR. Other types of global Alfven waves are stable in D-T tokamaks due to toroidal coupling effects.
Book Synopsis An Introduction to Trapped-particle Instability in Tokamaks by : Wallace M. Manheimer
Download or read book An Introduction to Trapped-particle Instability in Tokamaks written by Wallace M. Manheimer and published by . This book was released on 1977 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental Study of the Shear Alfven Resonance in a Tokamak by : Franklin Douglas Witherspoon
Download or read book Experimental Study of the Shear Alfven Resonance in a Tokamak written by Franklin Douglas Witherspoon and published by . This book was released on 1984 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis On Resonant Excitations of High-n Magnetohydrodynamic Modes by Energetic/alpha Particles in Tokamaks by :
Download or read book On Resonant Excitations of High-n Magnetohydrodynamic Modes by Energetic/alpha Particles in Tokamaks written by and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Analytical theories for the excitations in tokamaks of magnetohydrodynamic (MHD) modes with large toroidal mode numbers (n”1) are presented. Specifically, only instability mechanisms due to resonances with energetic ions/alpha particles are considered. It is noted that, while trapped energetic particles contribute to the ideal region, circulating energetic particles contribute mainly to the singular layer dynamics. A unified dispersion relation manifesting both fishbone-like modes and beam transit-resonance modes is then driven. Finally, we also analyze the stability property of toroidicity-induced shear Alfven waves excited via transit resonances with alpha particles in ignited tokamaks. 11 refs.
Book Synopsis Observations of Alfven Waves in a Tokamak Plasma by : Anthony Bruce Murphy
Download or read book Observations of Alfven Waves in a Tokamak Plasma written by Anthony Bruce Murphy and published by . This book was released on 1987 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Excitation of Alfven Waves by High-Energy Ions in a Tokamak by : M. N. Rosenbluth
Download or read book Excitation of Alfven Waves by High-Energy Ions in a Tokamak written by M. N. Rosenbluth and published by . This book was released on 1975 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:
