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An intense electron beam source
| Content Provider | Scilit |
|---|---|
| Author | Yeheskel, J. Gazit, D. Avida, R. Friedman, M. |
| Copyright Year | 1983 |
| Description | Journal: Journal of Physics D: Applied Physics High emission currents were achieved from a line electron thermionic source. The cathode was heated by electron bombardment from a secondary filament. Cathodes were built from massive strip made of tantalum or tungsten. Current densities were further increased by focusing the secondary electrons on to a narrow strip at the bottom of the cathode. The focus was achieved following a numerical model calculation. The design permitted the emitting surface temperature to be further increased, by keeping the cathode partially molten, in a reliable, continuous mode of operation. |
| Related Links | http://iopscience.iop.org/article/10.1088/0022-3727/16/4/011/pdf |
| Ending Page | 504 |
| Page Count | 6 |
| Starting Page | 499 |
| ISSN | 00223727 |
| e-ISSN | 13616463 |
| DOI | 10.1088/0022-3727/16/4/011 |
| Journal | Journal of Physics D: Applied Physics |
| Issue Number | 4 |
| Volume Number | 16 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 1983-04-14 |
| Access Restriction | Open |
| Subject Keyword | Journal: Journal of Physics D: Applied Physics Surface Temperature Secondary Electron |
| Content Type | Text |
| Resource Type | Article |
| Subject | Surfaces, Coatings and Films Acoustics and Ultrasonics Condensed Matter Physics Electronic, Optical and Magnetic Materials |
