Dielectric surface flashover in vacuum at 100 K

Neuber, A.; Butcher, M.; Hatfield, L.L.; Kristiansen, M.; Krompholz, H.

doi:10.1109/94.788752

Cited by 5 publications

(2 citation statements)

References 7 publications

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“…The unexpected results concerning the generation of energetic neutral particles were checked using two experimental setups similar to those used in the research of dielectric surface discharge [10][11][12][13][14][15]. In the first setup, knife-shaped electrodes made of copper foil were attached to the ferroelectric sample having the same dielectric constant and dimensions as the sample used in experiments with the FPS, with a distance of a few hundred micrometres between them.…”

Section: Particle Flow Generation During Regular Surface Flashover Di...mentioning

confidence: 99%

“…The plasma density at the triple points was estimated to be up to 10 17 cm −3 [9]. Here let us note that numerous experimental and theoretical research works on dielectric surface flashover in gas and vacuum have been carried out in the last 50 years and many scientific papers have been published on this subject [10][11][12][13][14][15]. However, a major part of these research works focused on flashover along the surface of dielectrics with a low dielectric constant placed between two electrodes.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Energetic particle and photon emission during dense plasma formation at the ferroelectric surface

Yarmolich¹,

Vekselman²,

Gurovich³

et al. 2008

Plasma Sources Sci. Technol.

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The operation of ferroelectric plasma sources (FPSs) under the application of driving pulses with different amplitudes (4-40 kV) was studied. It was found that the dense plasma formation during the fast fall (a few tens of nanoseconds) in the driving pulse is accompanied by the generation of a highly diverging (∼180 • ) neutral flow with a velocity of ∼7 × 10 7 cm s −1 in addition to the electron/ion and charged micro-particle flows which were studied in earlier research. It was shown that the velocity and intensity of the generated neutral flow remained the same for different parameters of the driving pulse. In addition a flux of x-rays with an energy of ∼20 keV was observed for ∼2 µs after the ending of the 40 kV driving pulse. A model of neutral emission based on micro-explosions of ferroelectric ceramics is suggested.

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