More on core-localized toroidal Alfven eigenmodes
- Institute for Fusion Studies, The University of Texas at Austin, Austin, Texas 78712 (United States)
- Joint European Torus Joint Undertaking, Abingdon, Oxfordshire OX14 3EA (United Kingdom)
A novel type of ideal toroidal Alfven eigenmode, localized in the low-shear core region of a tokamak plasma, is shown to exist, whose frequency is near the upper continuum of the toroidal Alfven gap. This mode converts to a kinetic-type toroidal Alfven eigenmode above a critical threshold that depends on aspect ratio, pressure gradient, and shear. Opposite to the usual ideal toroidal Alfven eigenmode, this new mode is peaked in amplitude on the small-major-radius side of the plasma. {copyright} {ital 1995} {ital American} {ital Institute} {ital of} {ital Physics}.
- Research Organization:
- University of Texas
- DOE Contract Number:
- FG05-80ET53088
- OSTI ID:
- 123609
- Journal Information:
- Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 9 Vol. 2; ISSN 1070-664X; ISSN PHPAEN
- Country of Publication:
- United States
- Language:
- English
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