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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Krasik, Ya. E. Mesyats, G. A. |
| Copyright Year | 2000 |
| Description | Author affiliation: Physics Department, Technion - Israel Institute of Technology, 32000 Haifa, Israel (Krasik, Ya. E.) || Russian Academy of Sciences, 14 Leninskiy Pr., 111924 Moscow, Russia (Mesyats, G. A.) |
| Abstract | Various sources are being used for generation of high-current electron beams (current amplitude of $10^{3}–10^{7}A,$ electron energy of $10^{4}–10^{7}eV$ and pulse duration of $10^{−9}–10^{−5}s)$ in specially designed diodes. The main requirements for these sources are as follows: (a) electron emission occurs simultaneously with the accelerating pulse; (b) the extracted electron current density should be governed by the space-charge law; (c) the extracted electron current density should be uniform in its cross-section; (d) the electron source should have a long lifetime $(≥10^{6}$ pulses) and it has to be reliable and reproducible; (e) the electron source should be compatible for operation in vacuum of $10^{−4}–10^{−8}Torr.$ One can divide electron sources into passive and active ones. By passive sources we consider sources which emit electrons under the application of an accelerating pulse. By active sources we consider sources of plasma that can be produced by various methods prior to the application of the accelerating pulse. In this review we consider different types of passive cathodes operating at $E≤10^{5}V/cm$ and active plasma sources based on ferroelectric cathodes. |
| Starting Page | 80 |
| Ending Page | 85 |
| File Size | 1447420 |
| Page Count | 6 |
| File Format | |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2000-06-20 |
| Publisher Place | Japan |
| Access Restriction | Subscribed |
| Rights Holder | Nagaoka University of Technology |
| Subject Keyword | Coils Optical fiber polarization ferroelectrics Phosphors cathodes Cameras plasma electron emission Anodes |
| Content Type | Text |
| Resource Type | Article |
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