Multisectional explosion-emission cathode with sections from cermets with lanthanum and titanium borides

V. I. Bojko, O. Yu Dolmatov, B. E. Kadlubovich, I. V. Shamanin

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Abstract

A multisectional explosion-emission cathode is described for generation of electron beams with large cross-sections. The cathode sections are fabricated on the base of chemical compound LaB6-TiB6, obtained by the method of self-propagating high-temperature synthesis. Results of electron microscopy of an emitting section surface show that the micropoint height is 2-13 μm, the base diameter is 5-6 μm, the surface density of micropoints is >2·106 cm-2. Experimental results on determination of the cathode emission characteristics are presented in comparison with a steel emitter.

Original languageEnglish
Pages (from-to)186-189
Number of pages4
JournalPribory i Tekhnika Eksperimenta
Issue number2
Publication statusPublished - Mar 1995

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ASJC Scopus subject areas

  • Instrumentation

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