Effects of Ion-Atom Collisions on the Propagation and Damping of Ion-Acoustic Waves
Experiments are described on ion-acoustic wave propagation and damping in alkali plasmas of various degrees of ionization. An increase of the ratio T e /T i from 1 to approximately 3–4, caused by ion-atom collisions, results in a decrease of the (Landau) damping of the waves. At high gas pressure and/or low wave frequency a ‘fluid’ picture adequately describes the experimental results.
KeywordsWave Frequency Plasma Column Vlasov Equation Argon Pressure Langmuir Probe
Unable to display preview. Download preview PDF.
- Fried, B. D. and Conte, S. D.: 1961, The Plasma Dispersion Function, Academic Press, New York.Google Scholar
- Joos, G.: 1950, Theoretical Physics, Hafner, New York.Google Scholar
- Motley, R. W. and Wong, A. Y.: 1964, in Proceedings of the Sixth International Conference on Ionization Phenomena in Gases (ed. by P. Hubert and E. Gremien), Bureau des Editions, Centre d’Etudes Nucléaires de Saclay, Paris, Vol. III, p. 133.Google Scholar