Molecular Dynamics Simulations of Mutual Space-Charge Effect Between Planar Field Emitters
| Autor: | Andrei Manolescu, Agust Valfells, Hakon Valur Haraldsson, Kristinn Torfason |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Physics
Nuclear and High Energy Physics Field (physics) FOS: Physical sciences Electron Computational Physics (physics.comp-ph) Condensed Matter Physics 01 natural sciences Molecular physics Space charge Physics - Plasma Physics 010305 fluids & plasmas Plasma Physics (physics.plasm-ph) Field electron emission Planar 0103 physical sciences Coulomb Physics::Accelerator Physics Physics - Computational Physics Common emitter Diode |
| Zdroj: | IEEE Transactions on Plasma Science. 48:1967-1973 |
| ISSN: | 1939-9375 0093-3813 |
| DOI: | 10.1109/tps.2020.2991582 |
| Popis: | Molecular dynamics simulations, with full Coulomb interaction and self-consistent field emission, are used to examine mutual space-charge interactions between beams originating from several emitter areas, in a planar infinite diode. The simulations allow observation of the trajectory of each individual electron through the diode gap. Results show that when the center-to-center spacing between emitters is greater than half of the gap spacing the emitters are essentially independent. For smaller spacing the mutual space-charge effect increases rapidly and should not be discounted. A simple qualitative explanation for this effect is given. 8 pages, 9 figures |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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