Effect of Sawtooth Oscillations on Energetic Ions

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The work summarizes results of the authors' studies on the energetic ion transport induced by sawtooth oscillations in tokamaks. The main attention is paid to description of physical mechanisms responsible for the transport. In addition to overview, the work contains new material. The new results concern the resonant interaction of the particles and the electromagnetic field of the sawtooth crash. In particular, it is discovered that the dominant harmonic of the crash (m = n = 1) can lead to stochastic motion of particles having large orbit width (potatoes). Regular motion of potatoes and quasi-stagnation particles in the presence of ... continued below

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9.6 Megabytes pages

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White, R.B.; Lutsenko, V.V.; Kolesnichenko, Ya. I. & Yakovenko, Yu. V. December 10, 1999.

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Description

The work summarizes results of the authors' studies on the energetic ion transport induced by sawtooth oscillations in tokamaks. The main attention is paid to description of physical mechanisms responsible for the transport. In addition to overview, the work contains new material. The new results concern the resonant interaction of the particles and the electromagnetic field of the sawtooth crash. In particular, it is discovered that the dominant harmonic of the crash (m = n = 1) can lead to stochastic motion of particles having large orbit width (potatoes). Regular motion of potatoes and quasi-stagnation particles in the presence of an n = 1 mode is studied, and their characteristic displacements associated with quick switching on/off the mode are found.

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9.6 Megabytes pages

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INIS; OSTI as DE00015114

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  • Other Information: PBD: 10 Dec 1999

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  • Report No.: PPPL-3404
  • Grant Number: AC02-76CH03073
  • DOI: 10.2172/15114 | External Link
  • Office of Scientific & Technical Information Report Number: 15114
  • Archival Resource Key: ark:/67531/metadc620058

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  • December 10, 1999

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

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  • April 15, 2016, 9:58 p.m.

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White, R.B.; Lutsenko, V.V.; Kolesnichenko, Ya. I. & Yakovenko, Yu. V. Effect of Sawtooth Oscillations on Energetic Ions, report, December 10, 1999; Princeton, New Jersey. (digital.library.unt.edu/ark:/67531/metadc620058/: accessed July 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.