Nonlinear interaction of high-frequency density-gradient-driven modes in mirror machines. I. Suppression of the drift-cyclotron instability by lower-hybrid-drift turbulence

Technical Report · Wed Oct 01 04:00:00 EDT 1980

OSTI ID:6440838

Diamond, P H; Myra, J R; Aamodt, R E

The nonlinear interaction of the drift cyclotron and lower-hybrid-drift modes is examined. A renormalized equation for the drift cyclotron ion response is derived and solved. Lower-hybrid-drift modes comprise the turbulent background. For levels of lower-hybrid-drift turbulence of e phi/T/sub i/ approx. (m/sub e//m/sub i/)/sup 1/2/(rho/sub i//L)/sup 3/4/, the growth rate of the drift cyclotron mode is drastically reduced by ion cyclotron resonance broadening, which is the dominant nonlinear effect.

• Research Organization: Science Applications, Inc., Boulder, CO (USA). Plasma Research Inst.
• DOE Contract Number: AC03-76ET53057
• OSTI ID: 6440838
• Report Number(s): SAI-254-81-0381-LJ; ON: DE81027850
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700107* -- Fusion Energy-- Plasma Research-- Instabilities
ANALYTICAL SOLUTION
CYCLOTRON INSTABILITY
DRIFT INSTABILITY
HYBRID RESONANCE
INSTABILITY
MAGNETIC FIELD CONFIGURATIONS
MAGNETIC MIRROR CONFIGURATIONS
NONLINEAR PROBLEMS
OPEN CONFIGURATIONS
PLASMA INSTABILITY
PLASMA MICROINSTABILITIES
RESONANCE