Stationary Striations due to Interaction of Two Ionization Waves in Xenon Glow Discharge

Experimental observations on a wave packet in a positive column of helium discharge with magnetic fields are reported. The wave packet is a kind of ionization wave and is created by applying voltage pulses to a mesh grid. When an axial non-uniform magnetic field is applied to a positive column, the plasma parameters change inhomogeneously near the magnetic coil. So various characteristics (amplitude, frequency, wavelength and so on) of the wave packet are changed at the both sides of the coil. The wavelength of the wave making up the wave packet varies continuously with a magnetic field. On the contrary, its amplitude and frequency vary remarkable near the magnetic coil, as a strong magnetic field is applied.

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“…16 and 17 as a function of the distance Z from the cathode [6]. The value of E , varies remarkably in the neighborhood of the coil.…”

Section: Discussionmentioning

confidence: 98%

Propagation Characteristics of Wave Packet in Non‐Uniform Magnetic Fields

Maruyama

Togashi

Sato

et al. 1994

Contrib. Plasma Phys.

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Periodically Self‐Excited Moving Striations in a Low‐Temperature Gas Plasma

Ammelt

Willebrand

Purwins

1992

Contrib. Plasma Phys.

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A new nonlinear effect in a low temperature gas plasma has been found and investigated experimentally. At a critical value of the discharge current in a special glow discharge system the positive column constricts and striations evolve spontaneously. On a large time scale the pattern seems to consist of standing striations. At higher temporal resolution the striations turn out to be moving ones which are modulated by high amplitude oscillations of the total electric current and of the voltage observed at the device. In addition phenomena like period doubling and irregular behaviour occur.

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Experimental Observation of Simultaneously Existing Moving and Standing Patterns in a Gas‐Discharge System

Willebrand

Matthiessen

Niedernostheide

et al. 1992

Contrib. Plasma Phys.

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In a quasi 1-dimensional lateral gasdischarge system we observe experimentally sub-and supercritical bifurcations from a spatially homogeneous to an inhomogeneous distribution of the current density. Among other results we find for the first time the simultaneous existence of a nontrivial nonstationary pattern (travelling waves) with a nontrivial stationary pattern (periodic filaments) in a laterally extended dc-driven gasdischarge system.

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Stationary Striations due to Interaction of Two Ionization Waves in Xenon Glow Discharge

Cited by 5 publications

References 6 publications

Propagation Characteristics of Wave Packet in Non‐Uniform Magnetic Fields

Propagation Characteristics of Wave Packet in Non‐Uniform Magnetic Fields

Periodically Self‐Excited Moving Striations in a Low‐Temperature Gas Plasma

Experimental Observation of Simultaneously Existing Moving and Standing Patterns in a Gas‐Discharge System

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