Parametric instability of the sheath plasma resonance. Interim report
Technical Report
·
OSTI ID:7285217
A large-amplitude rf pump signal is applied to a wire antenna in a magnetic field free plasma. When the pump frequency ..omega../sub 0/ corresponds to twice the sheath-plasma resonance frequency ..omega../sub r/, and the pump amplitude exceeds a threshold value, spontaneous excitation of the signal at ..omega../sub r/ = ..omega../sub 0//2 is observed. The process is explained as a periodic variation of the sheath thickness causing the sheath-plasma resonance to become parametrically unstable. The rf field pressure can induce density relaxation oscillations near the ion plasma frequency which are observed to modulate the instability spectrum strongly. (GRA)
- Research Organization:
- California Univ., Los Angeles (USA). Dept. of Physics
- OSTI ID:
- 7285217
- Report Number(s):
- AD/A-006489
- Country of Publication:
- United States
- Language:
- English
Similar Records
Parametric excitation and suppression of the ion-acoustic drift instability in an inhomogeneous plasma
Effect of ion-acoustic turbulence on the parametric instability near the lower hybrid resonance
High-frequency instability of the sheath-plasma resonance
Journal Article
·
Tue Jun 01 00:00:00 EDT 1976
· Sov. Phys. - Tech. Phys. (Engl. Transl.); (United States)
·
OSTI ID:7327643
Effect of ion-acoustic turbulence on the parametric instability near the lower hybrid resonance
Journal Article
·
Fri Sep 01 00:00:00 EDT 1978
· Sov. J. Plasma Phys. (Engl. Transl.); (United States)
·
OSTI ID:6279778
High-frequency instability of the sheath-plasma resonance
Technical Report
·
Sat Dec 31 23:00:00 EST 1988
·
OSTI ID:7225181