Amp\`ere-Class Pulsed Field Emission from Carbon-Nanotube Cathodes in a Radiofrequency Resonator
| Autor: | Mihalcea, D., Faillace, L., Hartzell, J., Panuganti, H., Boucher, S. M., Murokh, A., Piot, P., Thangaraj, J. C. T. |
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| Rok vydání: | 2015 |
| Předmět: | |
| Zdroj: | Appl. Phys. Lett. 107, 033502 (2015) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1063/1.4927052 |
| Popis: | Pulsed field emission from cold carbon-nanotube cathodes placed in a radiofrequency resonant cavity was observed. The cathodes were located on the backplate of a conventional $1+\frac{1}{2}$-cell resonant cavity operating at 1.3-GHz and resulted in the production of bunch train with maximum average current close to 0.7 Amp\`ere. The measured Fowler-Nordheim characteristic, transverse emittance, and pulse duration are presented and, when possible, compared to numerical simulations. The implications of our results to high-average-current electron sources are briefly discussed. Comment: 5 pages, 6 figures; submitted to Applied Physics Letters |
| Databáze: | arXiv |
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