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Title: High-current long-duration uniform electron beam generation in a diode with multicapillary carbon-epoxy cathode

Abstract

The results of reproducibly generating an electron beam with a current density of up to 5 kA/cm{sup 2}, 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.

Authors:
; ;  [1]
  1. Physics Department, Technion, Haifa 32000 (Israel)
Publication Date:
OSTI Identifier:
22217977
Resource Type:
Journal Article
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 114; Journal Issue: 12; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0021-8979
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ANODES; CARBON; CATHODES; CURRENT DENSITY; ELECTRON BEAMS; ELECTRON DENSITY; ELECTRON TEMPERATURE; EPOXIDES; ION TEMPERATURE; MAGNETIC FIELDS; PLASMA DENSITY; PLASMA DIAGNOSTICS; TIME RESOLUTION

Citation Formats

Queller, T., Gleizer, J. Z., and Krasik, Ya. E. High-current long-duration uniform electron beam generation in a diode with multicapillary carbon-epoxy cathode. United States: N. p., 2013. Web. doi:10.1063/1.4822019.
Queller, T., Gleizer, J. Z., & Krasik, Ya. E. High-current long-duration uniform electron beam generation in a diode with multicapillary carbon-epoxy cathode. United States. https://doi.org/10.1063/1.4822019
Queller, T., Gleizer, J. Z., and Krasik, Ya. E. 2013. "High-current long-duration uniform electron beam generation in a diode with multicapillary carbon-epoxy cathode". United States. https://doi.org/10.1063/1.4822019.
@article{osti_22217977,
title = {High-current long-duration uniform electron beam generation in a diode with multicapillary carbon-epoxy cathode},
author = {Queller, T. and Gleizer, J. Z. and Krasik, Ya. E.},
abstractNote = {The results of reproducibly generating an electron beam with a current density of up to 5 kA/cm{sup 2}, 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.},
doi = {10.1063/1.4822019},
url = {https://www.osti.gov/biblio/22217977}, journal = {Journal of Applied Physics},
issn = {0021-8979},
number = 12,
volume = 114,
place = {United States},
year = {Sat Sep 28 00:00:00 EDT 2013},
month = {Sat Sep 28 00:00:00 EDT 2013}
}