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Plasma electron source for the generation of wide-aperture pulsed beam at forevacuum pressures
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10.1063/1.4789771
/content/aip/journal/rsi/84/2/10.1063/1.4789771
http://aip.metastore.ingenta.com/content/aip/journal/rsi/84/2/10.1063/1.4789771
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Fore-vacuum pulse plasma electron source.

Image of FIG. 2.
FIG. 2.

Potential distribution and particle trajectories: L = 24 mm, U a = 5 kV (a); L = 5 mm, U a = 5 kV (b); L = 5 mm, U a = 15 kV (c); d 1 = 3 mm, d 2 = 3 mm.

Image of FIG. 3.
FIG. 3.

Current transport coefficient versus the accelerating voltage for L = 10 mm (1) and 7 mm (2); d 1 = 3 mm, d 2 = 3 mm, p = 4 Pa.

Image of FIG. 4.
FIG. 4.

Current transport coefficient versus the accelerating voltage for different anode hole diameters d 1 (p = 4 Pa, d 2 = 5.5 mm, and L = 4.5 mm).

Image of FIG. 5.
FIG. 5.

Beam current density radial distribution for different spacing between the extractor and the probe: 1–170 mm, 2–190 mm, 3–210 mm, 4–230 mm. (U a = 8 kV, L = 7 mm, d 1 = 3 mm, d 2 = 5 mm, and p = 4 Pa).

Image of FIG. 6.
FIG. 6.

Current–voltage characteristics of the electron source at different discharge currents.

Image of FIG. 7.
FIG. 7.

Current I oscillograms: 1 – discharge, 2 – emission.

Image of FIG. 8.
FIG. 8.

SEM images of the surface of the initial (a) and treated ceramics (b).

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/content/aip/journal/rsi/84/2/10.1063/1.4789771
2013-02-01
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Plasma electron source for the generation of wide-aperture pulsed beam at forevacuum pressures
http://aip.metastore.ingenta.com/content/aip/journal/rsi/84/2/10.1063/1.4789771
10.1063/1.4789771
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