新型二元混合基钡钨阴极的发射性能研究  

Emission Performance Studies of Novel Dual Mixed Barium-Tungsten Cathode

作　　者：张红卫[1,2] 吴华夏[3] 贺兆昌[3] 

机构地区：[1]合肥工业大学仪器科学与光电工程学院 [2]安徽华东光电技术研究院,安徽芜湖241000 [3]安徽华东光电技术研究院

出　　处：《电子器件》2006年第2期308-310,334,共4页Chinese Journal of Electron Devices

摘　　要：研究了二元混合基底的制备及对钡钨阴极发射性能影响,结果表明所研究的W-Ir(MMM)、W-Re(CMM)二元混合基钡钨阴极有比传统覆膜纯W基钡钨阴极更低的逸出功,具备更好的发射性能;从所研究的两种混合基钡钨阴极发射来看,覆膜阴极和未覆膜阴极发射效果没有明显差异。The history of the mixed barium-tungsten cathode was reviewed, and the preparation and the emission performance of the noble dual mixed barium-tungsten cathodes （W-Ir,W-Re studied）. The results indicate that these noble cathodes are better than the traditional ones in emission performance due to their lower work functions, and there is no difference between these noble coated and uncoated film Ba-W-mixed Base cathodes in emission performance.

关 键 词：钡钨阴极 二元混合基 阴极发射性能 

分 类 号：TN103[电子电信—物理电子学]