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gai zai yin ji biao mian de shuang zhong zuo yong
Author(s): 
Pages: 13-15
Year: Issue:  1
Journal: Vacuum and Cryogenics

Keyword:  氧化物阴极阴极发射;
Abstract: 给出了在研究氧化物阴极表面钙的作用机制方面的实验结果和分析.提出钙企阴极表面上的存在,在不同的寿命阶段起不同作用的论点.当阴极表面有少量的钙时,这些钙有益于促使表面材料形成最优化的发射结构,对电子发射有利;因大量的钙在阴极表面富集后,必将导致阴极失效.
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