Notes on constricted and unstable positive columns in electronegative gases†

Emeléus, K. G.; Gray, Eoin W.; Coulter, J. R. M.; Woolsey, G. A.

doi:10.1080/00207216808938101

Cited by 27 publications

(14 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We hope that these results will stimulate further experimental work using modern techniques to supplement the earlier work of Emeleus and Woolsey (1970).…”

Section: Discussionmentioning

confidence: 77%

The contracted positive column in electronegative gases

Daniels

Franklin

Snell

1990

J. Phys. D: Appl. Phys.

View full text Add to dashboard Cite

The theory of the positive column at moderate pressures in electron-attaching gases is examined for small attachment rates relative to the ionisation rate. It is shown that the negative (and positive) ions are confined to a channel in the centre of the discharge, by both computational and analytical approximation methods. Approximate expressions for the channel width and the eigenvalue which determines the electron temperature are derived.

show abstract

“…We hope that these results will stimulate further experimental work using modern techniques to supplement the earlier work of Emeleus and Woolsey (1970).…”

Section: Discussionmentioning

confidence: 77%

The contracted positive column in electronegative gases

Daniels

Franklin

Snell

1990

J. Phys. D: Appl. Phys.

View full text Add to dashboard Cite

show abstract

“…$ I), with, in general, a longitudinal drag component, and a radial component whose sign will be determined by the relative magnitudes of the longitudinal and radial field components, both when the latter is directed outwards and in the special cases when it is reversed (Franklin 1976) and directed inwards. Outward radial forces might be responsible for the protuberances sometimes seen on streamer discharges (Emeleus et al 1968). Inward radial forces could, like surface tension, give rise to a periodic longitudinal structure ('striations') in a column if its radius were much less than its length.…”

Section: Discussionmentioning

confidence: 98%

The electrostatic forces acting on constricted discharges

Emeléus¹,

Coulter²

1986

International Journal of Electronics

Self Cite

View full text Add to dashboard Cite

show abstract

“…Instabilities in electronegative discharges are known since a long time [1]. The so-called attachment instabilities in glow dc discharges [2], as well as in capacitivelycoupled [3] and inductively-coupled [4] rf discharges were observed.…”

Section: Introductionmentioning

confidence: 99%

On the heterogeneous character of the heartbeat instability in complex (dusty) plasmas

et al. 2012

View full text Add to dashboard Cite

International audienceA hypothesis on the physical mechanism generating the heartbeat instability in complex (dusty) plasmas is presented. It is suggested that the instability occurs due to the periodically repeated critical transformation on the boundary between the microparticle-free area (void) and the complex plasma. The critical transformation is supposed to be analogous to the formation of the sheath in the vicinity of an electrode. The origin of the transformation is the loss of the electrons and ions on microparticles surrounding the void. We have shown that this hypothesis is consistent with the experimentally measured stability parameter range, with the evolution of the plasma glow intensity and microparticle dynamics during the instability, as well as with the observed excitation of the heartbeat instability by an intensity-modulated laser beam (inducing the modulation of plasma density)

show abstract

Notes on constricted and unstable positive columns in electronegative gases†

Cited by 27 publications

References 0 publications

The contracted positive column in electronegative gases

The contracted positive column in electronegative gases

The electrostatic forces acting on constricted discharges

On the heterogeneous character of the heartbeat instability in complex (dusty) plasmas

Contact Info

Product

Resources

About