Precession of Toroidally Passing Particles in Tokamaks and Spherical Tori

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The toroidal precession of the well-circulating particles and particles that are passing toroidally but trapped poloidally is studied. Expressions for the precession frequency, which are convenient for practical use, are obtained and analyzed. It is found that the key parameters that determine the magnitude and the direction of the precession velocity are the plasma elongation, the magnitudes and profiles of the safety factor and beta defined as the ratio of the local plasma pressure to the magnetic field pressure at the magnetic axis. An important role of the ''paramagnetic'' precession in highly elongated plasmas is revealed. The analysis carried out ... continued below

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841 Kilobytes pages

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Kolesnichenko, Ya.I.; R.B.White & Yakovenko, Yu.V. January 30, 2003.

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Description

The toroidal precession of the well-circulating particles and particles that are passing toroidally but trapped poloidally is studied. Expressions for the precession frequency, which are convenient for practical use, are obtained and analyzed. It is found that the key parameters that determine the magnitude and the direction of the precession velocity are the plasma elongation, the magnitudes and profiles of the safety factor and beta defined as the ratio of the local plasma pressure to the magnetic field pressure at the magnetic axis. An important role of the ''paramagnetic'' precession in highly elongated plasmas is revealed. The analysis carried out is based on the obtained expressions for the equilibrium magnetic field strength and the field line curvature.

Physical Description

841 Kilobytes pages

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INIS; OSTI as DE00811957

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  • Other Information: PBD: 30 Jan 2003

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  • Report No.: PPPL-3775
  • Grant Number: AC02-76CH03073
  • DOI: 10.2172/811957 | External Link
  • Office of Scientific & Technical Information Report Number: 811957
  • Archival Resource Key: ark:/67531/metadc733625

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • January 30, 2003

Added to The UNT Digital Library

  • Oct. 18, 2015, 6:40 p.m.

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  • April 15, 2016, 9:51 p.m.

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Kolesnichenko, Ya.I.; R.B.White & Yakovenko, Yu.V. Precession of Toroidally Passing Particles in Tokamaks and Spherical Tori, report, January 30, 2003; Princeton, New Jersey. (digital.library.unt.edu/ark:/67531/metadc733625/: accessed November 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.