Electron emission from cold magnesium oxide
作者:
H.N.Daglish,
期刊:
Proceedings of the IEE - Part B: Electronic and Communication Engineering
(IET Available online 1961)
卷期:
Volume 108,
issue 37
页码: 103-110
年代: 1961
DOI:10.1049/pi-b-2.1961.0018
出版商: IEE
数据来源: IET
摘要:
A porous layer of magnesium oxide may be used as a cold source of electrons in a vacuum tube, the emission depending upon the maintenance of a positive electric field through the oxide layer. Methods of making and processing cathodes of this type are described, and it is shown that stable emission is obtained only from cathodes in a fully oxidized state. The behaviour of these cathodes under various experimental conditions has been examined with particular reference to voltage and temperature effects.
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