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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Aldan, M.T.P. Verboncoeur, J.P. |
| Copyright Year | 1994 |
| Abstract | We report on 2D particle-in-cell (PIC) simulations of electrical breakdown incorporating single-surface multipactor with background-gas ionization. The system for study is a semi-infinite, two-electrode Bergeron geometry with an angled dielectric in steady-state fields, with a background gas at variable low pressure. For pressures below a few tens of Pa (a few hundred mTorr), discharges are dominated by multipactor breakdown initiated by a triple-point source; the breakdown condition is well-characterized by an average secondary-emission coefficient greater than unity at the onset of anodic current, otherwise a dark-current develops due to space-charge saturation. The magnitude of the anode current is driven by the development of a multipactor front comprising an enhanced current front followed by a steady-state tail in which dielectric-surface fields no longer support net secondary-emission, resulting in a non-multiplicative arc. Additional avalanche phenomena occur with increased pressure >133.3 Pa (>1 Torr), where space-charge coupling leads to oscillations in an otherwise DC discharge, largely driven by the development and quenching of the multipactor front. |
| Sponsorship | National Natural Science Foundation of China (NSFC) Region Centre Ville de Tours Conseil General D'Indre et Loire ABB IEEE Sandia National Laboratories TOSHIBA |
| Starting Page | 1209 |
| Ending Page | 1217 |
| Page Count | 9 |
| File Size | 652467 |
| File Format | |
| ISSN | 10709878 |
| Volume Number | 20 |
| Issue Number | 4 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2013-08-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Dielectrics Discharges (electric) Anodes Surface discharges Steady-state Cathodes simulation Avalanche breakdown dielectric breakdown electrical breakdown vacuum breakdown gas discharges |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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