一种贮存式氧化物阴极
A Reservoir Oxide Cathode
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摘要: 该文论述了一种新的贮存式氧化物阴极。这种阴极的直流发射、脉冲发射和阴极寿命性能都比普通氧化物阴极好。文中对阴极发射材料的形貌、贮存活性物质的结构进行了分析，观察了阴极镍网表面电子发射图像，讨论了阴极发射机理。Abstract: A new kind of reservoir oxide cathode is presented in this paper. The characteristics of the cathode, such as, DC and PC emission, resistance to poisoning and lifetime, are better than those of conventional oxide cathode under same conditions. The SEM of the surface emission material and the XRD of the reservoir active material of the cathode are analyzed, and the THEM (Thermionic Electronic Emission Microscopy) of the Ni-net surface of the cathode is observed, based on which the emission mechanism of the cathode is discussed.
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Liao Xianheng, Wang Xiaoxia, Zhao Qinglan, et al.. A review of oxide cathode research in IECAS. IVESC2004, Beijing, 2004: 107.[2]刘学悫. 阴极电子学. 北京: 科学出版社, 1980, 第一章.[3]Takao Sawada. High current density oxide cathode for CRTs. IVESC2004, Beijing, 2004: 104-106.[4]Kiyoshi Saitoh, Ryo Suzuki, et al.. Cathode-ray tube having oxide cathode and method for producing the same, U.S.Patent.6376976, 2002.9.[5]О.Ю.马斯林尼柯夫, А. Б. 乌沙柯夫著, 祁小贞译. 有效热阴极(阴极的结构与制备工艺), 第二部, 莫斯科技术物理学院教学部, 2003, 第1章.[6]王小霞, 廖显恒, 罗积润等. 铝酸盐结构对阴极发射性能影响的研究[J].电子与信息学报.2003, 25(1):131-134浏览[7]张恩虬. 关于热电子发射理论的评述(Ⅲ)动态表面发射中心.物理学报. 1976, 25(1): 24-30. -
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