Experimental research of different plasma cathodes for generation of high-current electron beams
| Parent link: | Journal of Applied Physics Vol. 118, iss. 19.— 2015.— [193302, (9 p.)] |
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| Weitere Verfasser: | , , , , , , , , |
| Zusammenfassung: | Title screen The results of experimental studies of different types of cathodes-carbon-epoxy rods, carbon-epoxy capillary, edged graphite, and metal-dielectric-under the application of high-voltage pulses with an amplitude of several hundreds of kV and pulse duration of several nanoseconds are presented. The best diode performance was achieved with the edged graphite and carbon-epoxy-based cathodes characterized by uniform and fast (<1 ns) formation of explosive emission plasma spots and quasi-constant diode impedance. This result was achieved for both annular cathodes in a strong magnetic field and planar cathodes of a similar diameter (∼2 cm) with no external magnetic field. The cathodes based on carbon-epoxy rods and carbon-epoxy capillaries operating with an average current density up to 1 kA/cm2 showed insignificant erosion along 106 pulses of the generator and the generatedelectron beam current showed excellent reproducibility in terms of the amplitude and waveform. Режим доступа: по договору с организацией-держателем ресурса |
| Sprache: | Englisch |
| Veröffentlicht: |
2015
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| Schlagworte: | |
| Online-Zugang: | http://dx.doi.org/10.1063/1.4935880 |
| Format: | Elektronisch Buchkapitel |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=645462 |