Yttrium-doped nano-scandate cathode for THz VED

M S Bisht,A K Singh,R K Barik,Makthala Ravi,R S Raju,S K Shukla

Vacuum Electron Sources Conference（2014）

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摘要

Vacuum electron devices (VED's) in THz regime require very high cathode current density. A cathode is made out of nano-powder, containing Yttria-scandia-tungsten and Ba-Ca-aluminates. Emission >70 A/cm2 achieved when tested in analytical chamber containing anode, AES and THEM. These results will be presented.

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关键词

auger electron spectroscopy,cathodes,current density,nanoparticles,vacuum tubes,aes,ba-ca-aluminates,thz ved,cathode current density,nanopowder,vacuum electron devices,yttria-scandia-tungsten,yttrium-doped nanoscandate cathode

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