Parametric excitation of drift-cyclotron waves in an inhomogeneous plasma with two ion species
A study is made of the parametric excitation of drift-cyclotron waves in an inhomogeneous plasma containing two ion species in a homogeneous alternating electric field with frequency $omega$$sub 0$, where $omega$$sub 0$ is of the order of the ion cyclotron frequency $omega$/sub Bi/. It is shown that the inhomogeneity of the plasma is important in a weak pump field when uapproximately- less-thanv/sub Ti/(rho/sub i//a)(u is the velocity of relative motion of the ions in the field of the pump wave, v/sub Ti/ and rho/sub i/ are the ion thermal velocity and Larmor radius, and a is the characteristic inhomogeneity scale of the plasma). Under these conditions, the most unstable modes have frequencies of the order of the drift frequency; the growth rates are smaller than those for a homogeneous plasma. (AIP)
- Research Organization:
- Physicotechnical Institute, Academy of Sciences of the Ukrainian SSR, Khar'kov
- NSA Number:
- NSA-33-020034
- OSTI ID:
- 4085311
- Journal Information:
- Sov. Phys. - Tech. Phys. (Engl. Transl.), v. 20, no. 4, pp. 453-457, Journal Name: Sov. Phys. - Tech. Phys. (Engl. Transl.), v. 20, no. 4, pp. 453-457; ISSN SPTPA
- Country of Publication:
- United States
- Language:
- English
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