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High-current long-duration uniform electron beam generation in a diode with multicapillary carbon-epoxy cathode.
- Source :
-
Journal of Applied Physics . Sep2013, Vol. 114 Issue 12, p123303. 5p. 4 Black and White Photographs, 3 Diagrams, 5 Graphs. - Publication Year :
- 2013
-
Abstract
- The results of reproducibly generating an electron beam with a current density of up to 5 kA/cm2, without the cathode-anode gap being shorted by the plasma formed inside the cathode carbon-epoxy capillaries, in a ∼350 kV, ∼600 ns diode, with and without an external guiding magnetic field, are presented. The cathode sustained hundreds of pulses without degradation of its emission properties. Time- and space-resolved emissions of the plasma and spectroscopy analyses were used to determine the cathode plasma's density, temperature, and expansion velocity. [ABSTRACT FROM AUTHOR]
- Subjects :
- *ELECTRON beam research
*CATHODES
*MAGNETIC fields
*DIODES
*ELECTRON optics
Subjects
Details
- Language :
- English
- ISSN :
- 00218979
- Volume :
- 114
- Issue :
- 12
- Database :
- Academic Search Index
- Journal :
- Journal of Applied Physics
- Publication Type :
- Academic Journal
- Accession number :
- 90481682
- Full Text :
- https://doi.org/10.1063/1.4822019