"JOURNAL OF RADIO ELECTRONICS" (Zhurnal Radioelektroniki)  ISSN 1684-1719, N 12, 2017

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UDC 621.385.032

Modern electron sources for TWTs in millimeter and submillimeter ranges

 

T. M. Krachkovskaya 1,2, G. V. Sahadji 2, S. D. Zhuravlev 1,2

1 Yuri Gagarin Saratov State Technical University, 77 Polytechnicheskaya St., Saratov 410054, Russia

2 JSC "R&D enterprise "Almaz", 1 Panfilova St., Saratov 410033, Russia

 

The paper is received on December 6, 2017

 

Abstract. The paper presents the state of development of electron sources used in traveling wave tubes (TWT). Main achievements in the field of manufacturing technology of metal porous cathodes, matrix field emission cathodes, scandium cathodes, metal-alloy cathodes are described. Modern level of emission parameters, reliability and durability of such cathodes are considered. Actual problems for developments of electron sources for TWTs in millimeter and submillimetric ranges are discussed. Moreover, traditional emissive materials and the newest cathode materials based on carbon nanoclusters are described. Conclusions are made about further ways of developing the technology for manufacturing metal porous cathodes used nanocarbon.

Keywords: metal porous cathodes, matrix field emission cathodes, scandium cathodes, metal-alloy cathodes, nanocarbon material.

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For citation:
T. M. Krachkovskaya, G. V. Sahadji, S. D. Zhuravlev. Modern electron sources for TWTs in millimeter and submillimeter ranges. Zhurnal Radioelektroniki - Journal of Radio Electronics. 2017. No. 12. Available at http://jre.cplire.ru/jre/dec17/5/text.pdf.