Drift-wave spectra obtained from the theory of nonlinear ion-Landau damping in sheared magnetic field

Journal Article · Mon Jan 25 00:00:00 EST 1982 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.48.249· OSTI ID:5648720

Rogister, A; Hasselberg, G

The local character, in poloidal mode-number space, of the resonant nonlinear interaction of drift waves with ions in a sheared magnetic field permits an analytical determination of the spectrum. Important processes underlying the stabilization are energy cascade and transfer, respectively, in ''close'' (k'/sub Theta/approx. =k/sub Theta/) and ''distant'' (k'/sub Theta/a/sub s/approx. =1/k/sub Theta/a/sub s/) interactions. The spectral index n = 4 of the high-mode-number tail is independent of the excitation mechanism.

• Research Organization: Institut fuer Plasmaphysik der Kernforschungsanlage Juelich GmbH, Kernforschungsanlage, D-5170 Juelich Federal Republic of Germany
• OSTI ID: 5648720
• Journal Information: Phys. Rev. Lett.; (United States), Vol. 48:4
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
PLASMA WAVES
NONLINEAR PROBLEMS
ENERGY TRANSFER
INTERACTIONS
IONS
LANDAU DAMPING
MAGNETIC FIELDS
RESONANCE
CHARGED PARTICLES
DAMPING
700108* - Fusion Energy- Plasma Research- Wave Phenomena