Striations in rf discharge and dc discharges with rf perturbations
Brockwell, Daniel Pleasant, Jr.
Cooper, A. W.
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A study of striations in the rf glow discharge and the dc discharge with rf perturbations was conducted in neon gas over an rf frequency range of 1.5 MMHz to 12 MHz and a pressure range of 1 to 15 torr. The striation parameters were measured in a variety of situations and a study was made of (1) stationary striation phenomena, to include the parameters of the rf discharge, the effects of the induced rf electric field and the limitartions imposed by the power input to the field, (2) the relation between striation wavelength and the longitudinal electric field and (3) the relation between the electron temperature and the longitudinal electri field. The utilization of an rf perturbation allowed a study of rf discharge phenomena and gave a method whereby power could be put into the discharge by a means other than the dc electric field. The results of the experiment indicate (a) that stationary striations may be a standing wave phenomenon (b) the wavelength of moving striations is not uniquely determined by the electric field (c) more work and analysis is necessary concerning the relationship of the electron temperature and the longitudinal electric field
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