High-frequency convective loss-cone instability in short mirror machines

1979 ◽  
Vol 22 (8) ◽  
pp. 1510 ◽  
Author(s):  
M. J. Gerver
Keyword(s):  
High Frequency ◽  
Loss Cone ◽  
Mirror Machines

High-frequency ion electrostatic instabilities in mixed warm–cold plasma

1976 ◽  
Vol 15 (3) ◽  
pp. 325-333 ◽  
Author(s):  
L. Gomberoff ◽  
S. Cuperman
Keyword(s):  
Distribution Function ◽  
High Frequency ◽  
Cold Plasma ◽  
Loss Cone ◽  
Electrostatic Waves ◽  
High Frequencies ◽  
Proton Gyrofrequency

It is shown that an ion loss cone distribution function with m ≥ 1 becomes unstable against electrostatic waves with ω ≫ Ωp and k0 = 0 in the presence of a cold plasma population, in contrast with pure warm systems, which require m ≥ 3 for instability. This result is an extension to high frequencies, ω ≫ Ω of similar conclusions reached by Pearlstein et al. (1966) and Farr & Budwine (1968), for ω-values equal to the first few harmonics of the proton gyrofrequency.

Stabilization of Drift-Cyclotron Loss-Cone Instability of Plasmas by High Frequency Field

1981 ◽  
Vol 50 (5) ◽  
pp. 1716-1722 ◽  
Author(s):  
Mutsuo Takai ◽  
Hidenori Akiyama ◽  
Susumu Takeda
Keyword(s):  
High Frequency ◽  
High Frequency Field ◽  
Loss Cone ◽  
Frequency Field

Drift instabilities in anti-loss-cone plasmas

1976 ◽  
Vol 15 (1) ◽  
pp. 105-113 ◽  
Author(s):  
B. Buti
Keyword(s):  
Growth Rates ◽  
High Frequency ◽  
Low Frequency ◽  
Frequency Instability ◽  
Loss Cone ◽  
Electrostatic Waves ◽  
Low Frequency Instability ◽  
The Stability

The paper investigates the stability of electrostatic waves in non-uniform magnetoplasmas, governed by anti-loss-cone distributions. A new high- frequency anti-loss-cone instability occurs if ρ > ρc. (ρ is the parameter charactensing the strength of the anti-loss-cone.) An increase in ρ increases the growth rates for this instability, but stabilizes the low-frequency instability that exists even in the absence of the anti-loss cone. The growth rates can be of order 0.1Ωe.

scholarly journals Loss Cone Instability in an External High Frequency Electric Field

1969 ◽  
Vol 22 (4) ◽  
pp. 200-216
Author(s):  
Shun'ichi KISHIMOTO ◽  
Hideo AKIMUNE ◽  
Tokuo SUITA
Keyword(s):  
Electric Field ◽  
High Frequency ◽  
Loss Cone ◽  
High Frequency Electric Field ◽  
Frequency Electric Field
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