A NEW DISPENSER CATHODE IMPREGNATED WITH BARIUM YTTERBNATE

Wang Yongshu; Wang Qi; Li Meixian; Deng Yaode

Volume 10 Issue 4

Jul. 1988

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Article Navigation > Journal of Electronics & Information Technology > 1988 > 10(4): 381-384

Wang Yongshu, Wang Qi, Li Meixian, Deng Yaode. A NEW DISPENSER CATHODE IMPREGNATED WITH BARIUM YTTERBNATE[J]. Journal of Electronics & Information Technology, 1988, 10(4): 381-384.

Citation:

Wang Yongshu, Wang Qi, Li Meixian, Deng Yaode. A NEW DISPENSER CATHODE IMPREGNATED WITH BARIUM YTTERBNATE[J]. Journal of Electronics & Information Technology, 1988, 10(4): 381-384.

Wang Yongshu, Wang Qi, Li Meixian, Deng Yaode. A NEW DISPENSER CATHODE IMPREGNATED WITH BARIUM YTTERBNATE[J]. Journal of Electronics & Information Technology, 1988, 10(4): 381-384.

Citation:

Wang Yongshu, Wang Qi, Li Meixian, Deng Yaode. A NEW DISPENSER CATHODE IMPREGNATED WITH BARIUM YTTERBNATE[J]. Journal of Electronics & Information Technology, 1988, 10(4): 381-384.

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A NEW DISPENSER CATHODE IMPREGNATED WITH BARIUM YTTERBNATE

Received Date: 1987-01-28
Rev Recd Date: 1988-02-10
Publish Date: 1988-07-19

Abstract

Abstract

A new kind of dispenser cathode impregnated with barium ytterbnate has been developed. It has good properties: high coefficient of secondary emission, stronger ability of resisting oxygen poisoning, higher thermionic emission current density and more uniform emission on the cathode surface. The cathode is suitable for use as an electron emitter for microwave tubes, especially magnetrons.

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References(1)

References

A. I. Fingner, et al., Metal-Porous Bodv Having Pores Filled with Barium Scandate, U.S. patent, 3,358,178, Dec. 1967.[2]A.Van, Stratum, et al., Barium-Aluminum-Scadate Dispenser, Cathode, U. S patent, 4,007,393, Feb. 1977.[3]S. Yamamoto, et al., Appl. Surd. Sci., 20(1984), 69.[4]白振纲等,电子学通讯,3(1981), 191-192.[5]杨凌云等,电子学通讯,4(1982), 384-389.[6]曾昭俟,电子管技术,1984年,第3期,第7-11页.

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