| Full text | |
| Author(s): |
Total Authors: 2
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| Affiliation: | [1] IPEN, Sao Paulo - Brazil
[2] Univ Sao Paulo, BR-05508000 Sao Paulo - Brazil
Total Affiliations: 2
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| Document type: | Journal article |
| Source: | JOURNAL OF ELECTROSTATICS; v. 70, n. 1, p. 166-173, FEB 2012. |
| Web of Science Citations: | 0 |
| Abstract | |
We derive analytic formulae for the electrostatic force between ring and disc charge distributions inside a grounded metallic pipe using the Green's function technique. These distribution models are useful in the modeling of electron beams commonly employed in microwave tubes. We analyze the electric force between two discs, between two rings, and between a disc and a ring and we compare the results for the electric potential, field, and force to numerical ones obtained from a 3D electrostatic solver. Present expressions were developed to avoid an oscillatory noise when the field diverges by axial proximity between source and observer. (C) 2011 Elsevier B.V. All rights reserved. (AU) | |
| FAPESP's process: | 08/05286-1 - Multitonal analysis and experimental characterization of traveling-wave tubes for traveling-wave amplifiers |
| Grantee: | Daniel Teixeira Lopes |
| Support Opportunities: | Scholarships in Brazil - Doctorate |