Anderson Localization of Ballooning Modes, Quantum Chaos and the Stability of Compact Quasiaxially Symmetric Stellarators Metadata

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Title

  • Main Title Anderson Localization of Ballooning Modes, Quantum Chaos and the Stability of Compact Quasiaxially Symmetric Stellarators

Creator

  • Author: Redi, M. H.
    Creator Type: Personal
  • Author: Johnson, J. L.
    Creator Type: Personal
  • Author: Klasky, S.
    Creator Type: Personal
  • Author: Canik, J.
    Creator Type: Personal
  • Author: Dewar, R. L.
    Creator Type: Personal
  • Author: Cooper, W. A.
    Creator Type: Personal

Contributor

  • Sponsor: United States. Department of Energy. Office of Science.
    Contributor Type: Organization
    Contributor Info: USDOE Office of Science (SC) (United States)

Publisher

  • Name: Princeton University. Plasma Physics Laboratory.
    Place of Publication: Princeton, New Jersey
    Additional Info: Princeton Plasma Physics Lab., NJ (United States)

Date

  • Creation: 2001-10-31

Language

  • English

Description

  • Content Description: The radially local magnetohydrodynamic (MHD) ballooning stability of a compact, quasiaxially symmetric stellarator (QAS), is examined just above the ballooning beta limit with a method that can lead to estimates of global stability. Here MHD stability is analyzed through the calculation and examination of the ballooning mode eigenvalue isosurfaces in the 3-space [s, alpha, theta(subscript ''k'')]; s is the edge normalized toroidal flux, alpha is the field line variable, and q(subscript ''k'') is the perpendicular wave vector or ballooning parameter. Broken symmetry, i.e., deviations from axisymmetry, in the stellarator magnetic field geometry causes localization of the ballooning mode eigenfunction, and gives rise to new types of nonsymmetric eigenvalue isosurfaces in both the stable and unstable spectrum. For eigenvalues far above the marginal point, isosurfaces are topologically spherical, indicative of strong ''quantum chaos.'' The complexity of QAS marginal isosurfaces suggests that finite Larmor radius stabilization estimates will be difficult and that fully three-dimensional, high-n MHD computations are required to predict the beta limit.
  • Physical Description: 842 Kilobytes pages

Subject

  • Keyword: Axial Symmetry
  • STI Subject Categories: 70 Plasma Physics And Fusion Technology
  • Keyword: Stellarators
  • Keyword: Ballooning Instability
  • Keyword: Larmor Radius
  • Keyword: Eigenvalues
  • Keyword: Magnetohydrodynamics

Source

  • Other Information: PBD: 31 Oct 2001

Collection

  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Report

Format

  • Text

Identifier

  • Report No.: PPPL-3623
  • Grant Number: AC02-76CH03073
  • DOI: 10.2172/788453
  • Office of Scientific & Technical Information Report Number: 788453
  • Archival Resource Key: ark:/67531/metadc717740

Note

  • Display Note: INIS; OSTI as DE00788453
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