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- Title
Electron Emission from a Cathode Doped by Fast Particles of a Working Gas.
- Authors
Bokhan, A. P.; Bokhan, P. A.; Zakrevsky, Dm. É.
- Abstract
The effect of fast charged and neutral particles on the emission properties of different materials is investigated. In many plasma devices, a flux of fast atoms and ions produces a specific self-sustained state of the layer near the cathode surface. In particular, this layer is saturated by working gas atoms to a depth of several monolayers. This state variously modifies different types of emission. Potential emission, taking place under the action of metastable atoms and ions, weakens because of a rise in the work function. On the contrary, kinetic emission, which is due to fast heavy particles, is enhanced, since energy losses in the modified near-surface layer increase. Photoemission resulting under the action of resonance radiation increases considerably, and its mechanism changes. © 2005 Pleiades Publishing, Inc.
- Subjects
WORKING gases; ELECTRON emission; PARTICLES (Nuclear physics); ATOMS; IONS; PHOTOEMISSION
- Publication
Technical Physics, 2005, Vol 50, Issue 9, p1233
- ISSN
1063-7842
- Publication type
Article
- DOI
10.1134/1.2051469