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2015•Unpublished venueRequires access

Thermionic emission of a novel cathode applied in high-power continuous wave magnetron tubes

Shikai Qi, Xiaoxia Wang, Jirun Luo, Mingwei Hu, Qinglan Zhao, Yun Li, Qi Zhang

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Abstract

In order to enhance output power and prolong lifetime of the high-power continuous wave magnetron tubes, a novel La2Zr2O7impregnated cathode is adopted to enhance the thermionic emission. In this abstract, we compare the thermionic emission ability of this cathode with traditional pure W filament cathode. Experimental results show that this cathode can provide the same thermionic emission with at least 300 ° lower than pure W filament cathode.

About this research paper

What this paper is about

In order to enhance output power and prolong lifetime of the high-power continuous wave magnetron tubes, a novel La2Zr2O7impregnated cathode is adopted to enhance the thermionic emission. In this abstract, we compare the thermionic emission ability of this cathode with traditional pure W filament cathode. Experimental results show that this cathode can provide the same thermionic emission with at least 300 ° lower than pure W filament cathode.

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Available abstract

In order to enhance output power and prolong lifetime of the high-power continuous wave magnetron tubes, a novel La2Zr2O7impregnated cathode is adopted to enhance the thermionic emission. In this abstract, we compare the thermionic emission ability of this cathode with traditional pure W filament cathode. Experimental results show that this cathode can provide the same thermionic emission with at least 300 ° lower than pure W filament cathode.

Key concepts: Thermionic emission, Cathode, Cavity magnetron, Hot cathode, Protein filament, Materials science, Power (physics), Electrical engineering

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