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Dependence of frequency of nonlinear cold plasma cylindrical oscillations on electron density

Fainberg, J.; Osherovich, Vladimir

For cold plasma, the frequency of small amplitude Langmuir oscillations along one Cartesian coordinate is ω_po=√4πe²n_o/m_e , where n_p=n_o is the constant proton density which is equal to the average electron density n_e¯. This formula for ω_po is the basis for measu…