Volume ultraviolet preionization from bare sparks

Babcock, R. V.; Liberman, I.; Partlow, W. D.

doi:10.1109/jqe.1976.1069027

Cited by 75 publications

(31 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…While the experimental minimum required density for homogeneous discharge is the order of 10 5 cm −3 [14,20], which is in favor our predicted result.…”

supporting

confidence: 56%

See 1 more Smart Citation

Dynamic model of streamer coupling for the homogeneity of glowlike dielectric barrier discharges at near-atmospheric pressure

Lieberman

et al. 2011

Phys. Rev. E

View full text Add to dashboard Cite

A streamer coupling theory is developed to describe the formation of homogenous emission, and the high moving speed of emission patterns in high pressure discharges. By considering the effects of both electron diffusion and electronic drift in the streamer head, the minimum required preionization level nmin for the formation of streamer coupling is found to depend on electric field strength, gas pressure and electron temperature. The homogeneity and moving speed of the emission pattern in streamer coupling head increase with preionization level n0, when n0 > nmin. The predicted results for atmospheric helium plasma indicate nmin ∼ 10 5 cm −3 and moving speed of 10 4 − 10 6 m/s, in agreement with experiments.

show abstract

“…While the experimental minimum required density for homogeneous discharge is the order of 10 5 cm −3 [14,20], which is in favor our predicted result.…”

supporting

confidence: 56%

“…For the atmospheric pressure helium discharge, by using the transversely excited atmospheric pressure CO 2 laser system [20], we can control the preionization level n 0 in the setup of capacitively coupled plasma to identify Figs. 3 and 4.…”

mentioning

confidence: 99%

Dynamic model of streamer coupling for the homogeneity of glowlike dielectric barrier discharges at near-atmospheric pressure

Lieberman

et al. 2011

Phys. Rev. E

View full text Add to dashboard Cite

show abstract

“…8, So should be of the order of 1011 cm -8 s -1 so as to give neo = 10 a electrons/cm ~. The study of ultraviolet spark preionization in C02-N2-He laser gas mixtures pointed out that the preionization electron production was due to direct one-photon ionization of impurities at a partial pressure of the order of 10 -6 atm by photons in the wavelength range of (117 -124) nm [17]. It was also identified that most of the emissions for preionization were from N2 atomic-line emission [18,19].…”

Section: P(~'ne'ne) "-2-~ ~E \ Ne ]mentioning

confidence: 99%

Study of self-preionized XeCl* electron-avalanched discharges

et al. 1991

View full text Add to dashboard Cite

“…With increase in current flowing through the spark channels, the probability of production of harder UV capable of causing photoionisation increases [7]. As a result, the threshold density of UV photons prerequisite for obtaining a volumetric glow discharge is attained by dissipating preionisation energy of muchreduced amount ($0.3% of the main discharge) as compared to when the laser is operated with the conventional switch ($2.7% of the main discharge energy).…”

Section: Introductionmentioning

confidence: 99%