| Autor: |
Y. Pang, H.P. Demroff, M.D. Stewart, W. Yu, S.M. Elliott, M.H. Wiechold, B. Lee, D.L. Parker, M. Popovic, W.K. Yue, Peter McIntyre, J.D. Legg |
| Rok vydání: |
2002 |
| Předmět: |
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| Zdroj: |
Conference Record of the 1991 IEEE Particle Accelerator Conference. |
| DOI: |
10.1109/pac.1991.164420 |
| Popis: |
The Accelerator Research Laboratory at Texas A&M University is developing gated field-emitter cathodes for microwave and millimeter-wave applications. The cathode consists of an array of gated field-emitters which are modulated at microwave frequency to produce a fully modulated electron beam. Field-emitter structures under development include gated knife-edge arrays, reentrant cusps, and porous silicon. All feature extremely high transconductance, low noise, and rugged structure as compared to earlier field-emitter structures. The field emission at the cathode surface is discussed. The knife-edge emitter geometry is described. The inverted cusp cathodes are considered. The porous silicon emitting surfaces are described. > |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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