Energetic Particle Effects Can Explain the Low Frequency of Alfvin Modes in the DIII-D Tokamak

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During beam injection in the DIII-D tokamak, modes with lower frequencies than expected for toroidicity-induced Alfvin eigenmodes (TAE) are often observed. We present the analysis of one of these ''beta-induced Alfvin eigenmodes'' (BAE) with a high-n stability code HINST that includes the effect of the energetic ions on the mode frequency. It shows that the ''BAE'' could be the theoretically predicted resonant-TAE (RTAE), which is also called an energetic-particle mode (EPM).

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504 Kilobytes pages

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Gorelenkov, N.N. & Heidbrink, W.W. January 31, 2001.

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During beam injection in the DIII-D tokamak, modes with lower frequencies than expected for toroidicity-induced Alfvin eigenmodes (TAE) are often observed. We present the analysis of one of these ''beta-induced Alfvin eigenmodes'' (BAE) with a high-n stability code HINST that includes the effect of the energetic ions on the mode frequency. It shows that the ''BAE'' could be the theoretically predicted resonant-TAE (RTAE), which is also called an energetic-particle mode (EPM).

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504 Kilobytes pages

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INIS; OSTI as DE00775570

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  • Other Information: PBD: 31 Jan 2001

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  • Report No.: PPPL-3539
  • Grant Number: AC02-76CH03073
  • DOI: 10.2172/775570 | External Link
  • Office of Scientific & Technical Information Report Number: 775570
  • Archival Resource Key: ark:/67531/metadc722559

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Office of Scientific & Technical Information Technical Reports

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  • January 31, 2001

Added to The UNT Digital Library

  • Sept. 29, 2015, 5:31 a.m.

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  • April 15, 2016, 9:59 p.m.

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Gorelenkov, N.N. & Heidbrink, W.W. Energetic Particle Effects Can Explain the Low Frequency of Alfvin Modes in the DIII-D Tokamak, report, January 31, 2001; Princeton, New Jersey. (digital.library.unt.edu/ark:/67531/metadc722559/: accessed September 23, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.