On plasma rotation induced by waves in tokamaks

Guan, Xiaoyin; Dodin, I. Y.; Fisch, N. J.; Qin, Hong; Liu, Jian

doi:10.1063/1.4823713

Title: On plasma rotation induced by waves in tokamaks

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Abstract

The momentum conservation for resonant wave-particle interactions, now proven rigorously and for general settings, is applied to explain in simple terms how tokamak plasma is spun up by the wave momentum perpendicular to the dc magnetic field. The perpendicular momentum is passed through resonant particles to the dc field and, giving rise to the radial electric field, is accumulated as a Poynting flux; the bulk plasma is then accelerated up to the electric drift velocity proportional to that flux, independently of collisions. The presence of this collisionless acceleration mechanism permits varying the ratio of the average kinetic momentum absorbed by the resonant-particle and bulk distributions depending on the orientation of the wave vector. Both toroidal and poloidal forces are calculated, and a fluid model is presented that yields the plasma velocity at equilibrium.

Authors:

Guan, Xiaoyin; Dodin, I. Y.; Fisch, N. J. ^[1]; Qin, Hong ^[1]; Liu, Jian ^[2]

Princeton Plasma Physics Laboratory, Princeton University, Princeton, New Jersey 08543 (United States)
Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026 (China)

Publication Date:: Tue Oct 15 00:00:00 EDT 2013

OSTI Identifier:: 22218497

Resource Type:: Journal Article

Journal Name:: Physics of Plasmas

Additional Journal Information:: Journal Volume: 20; Journal Issue: 10; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1070-664X

Country of Publication:: United States

Language:: English

Subject:: 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ACCELERATION; ELECTRIC FIELDS; MAGNETIC FIELDS; MAGNETOHYDRODYNAMICS; PLASMA DRIFT; PLASMA FLUID EQUATIONS; PLASMA WAVES; ROTATING PLASMA; TOKAMAK DEVICES

Citation Formats


                    Guan, Xiaoyin, Dodin, I. Y., Fisch, N. J., Qin, Hong, Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, and Liu, Jian. On plasma rotation induced by waves in tokamaks.  United States: N. p., 2013. 
        Web.  doi:10.1063/1.4823713.

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                    Guan, Xiaoyin, Dodin, I. Y., Fisch, N. J., Qin, Hong, Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, & Liu, Jian. On plasma rotation induced by waves in tokamaks.  United States.  https://doi.org/10.1063/1.4823713

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                    Guan, Xiaoyin, Dodin, I. Y., Fisch, N. J., Qin, Hong, Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, and Liu, Jian. 2013.  
        "On plasma rotation induced by waves in tokamaks".  United States.  https://doi.org/10.1063/1.4823713.

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@article{osti_22218497,

  title        = {On plasma rotation induced by waves in tokamaks},

  author       = {Guan, Xiaoyin and Dodin, I. Y. and Fisch, N. J. and Qin, Hong and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026 and Liu, Jian},

  abstractNote = {The momentum conservation for resonant wave-particle interactions, now proven rigorously and for general settings, is applied to explain in simple terms how tokamak plasma is spun up by the wave momentum perpendicular to the dc magnetic field. The perpendicular momentum is passed through resonant particles to the dc field and, giving rise to the radial electric field, is accumulated as a Poynting flux; the bulk plasma is then accelerated up to the electric drift velocity proportional to that flux, independently of collisions. The presence of this collisionless acceleration mechanism permits varying the ratio of the average kinetic momentum absorbed by the resonant-particle and bulk distributions depending on the orientation of the wave vector. Both toroidal and poloidal forces are calculated, and a fluid model is presented that yields the plasma velocity at equilibrium.},

  doi          = {10.1063/1.4823713},

  url          = {https://www.osti.gov/biblio/22218497},
  journal      = {Physics of Plasmas},

  issn         = {1070-664X},

  number       = 10,

  volume       = 20,

  place        = {United States},

  year         = {Tue Oct 15 00:00:00 EDT 2013},

  month        = {Tue Oct 15 00:00:00 EDT 2013}

}

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