Parametric instability induced in a multispecies plasma by magnetosonic waves

Conference · Tue Jan 01 04:00:00 EST 1974

OSTI ID:4127388

Sperling, J L; Perkins, F W

Magnetosonic waves propagating near an ion gyrofrequency or the sum of the ion gyrofrequencies of a multispecies plasma can excite parametric instabilities due to relative ion motion. Although both the decay and purely growing instabilities may be excited, the decay instability into two electrostatic ion cyclotron waves with k/sub perpendicular/rho/sub i/ much greater than 1 leads to the lowest thresholds. The effect of density gradients and inhomogeneous magnetic fields on the threshold is discussed. (auth)

• Research Organization: Princeton Univ., NJ; Texas Tech Univ., Lubbock (USA). Plasma Lab.
• NSA Number: NSA-33-011669
• OSTI ID: 4127388
• Report Number(s): CONF-740642--
• Country of Publication: United States
• Language: English

Related Subjects

*MAGNETOACOUSTIC WAVES-- WAVE PROPAGATION
*PLASMA INSTABILITY-- PARAMETRIC INSTABILITIES
700107* --Fusion Energy--Plasma Research--Plasma Instabilities
CYCLOTRON FREQUENCY
N70700* --Physics--Controlled Thermonuclear Research-- Stability
N70900 --Physics--Controlled Thermonuclear Research--Wave Phenomena
PLASMA WAVES