Abstract
Dispenser cathodes have attracted attention in both industrial and academic research for a long time, due to their application as high-brightness electron sources. Since most modern cathodes utilize tungsten as the base material, it is useful to investigate how novel forms of tungsten can influence a cathode. In the present study, nanoscale tungsten particles were generated by physical vapor deposition and deposited onto substrates, to gauge the effectiveness of generating a tungsten coating that can enhance electron emission. These nanoparticles were characterized by scanning and transmission electron microscopy. The tungsten particles formed a continuous nanoporous structure, along with discrete larger particles on the substrate.
| Original language | English |
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| Title of host publication | 2020 IEEE 21st International Conference on Vacuum Electronics, IVEC 2020 |
| Pages | 389-390 |
| Number of pages | 2 |
| ISBN (Electronic) | 9781538682883 |
| DOIs | |
| State | Published - Oct 19 2020 |
| Event | 21st IEEE International Conference on Vacuum Electronics, IVEC 2020 - Monterey, United States Duration: Oct 19 2020 → Oct 22 2020 |
Publication series
| Name | 2020 IEEE 21st International Conference on Vacuum Electronics, IVEC 2020 |
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Conference
| Conference | 21st IEEE International Conference on Vacuum Electronics, IVEC 2020 |
|---|---|
| Country/Territory | United States |
| City | Monterey |
| Period | 10/19/20 → 10/22/20 |
Bibliographical note
Publisher Copyright:© 2020 IEEE.
Keywords
- Cathode
- Characterization
- Nanoparticle
- Physical Vapor Deposition
- Tungsten
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Electronic, Optical and Magnetic Materials
- Instrumentation