Inhibition of the current-driven ion wave instability by electron trapping in the FM-1 spherator
Abstract
An experimental analysis is made of the scattering of microwaves by the density fluctuations due to the current-driven ion wave instability in a toroidal plasma confinement device, the FM-1 spherator. It is found that the instability exists in the collisional regime and it is inhibited (i.e., quenched by two orders in magnitude) in the trapped-electron (i.e., banana) regime. The inhibition occurs when the electron collision frequency is about equal to the electron bounce frequency between mirror trapping.
- Publication:
-
Unknown
- Pub Date:
- October 1975
- Bibcode:
- 1975icdi.rept.....A
- Keywords:
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- Ionic Waves;
- Trapped Particles;
- Atomic Collisions;
- Microwave Scattering;
- Toroidal Plasmas;
- Plasma Physics