| Revista: | Brazilian journal of physics |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000398318 |
| ISSN: | 0103-9733 |
| Autores: | Radovic, Miodrag K1 Maluckov, Cedomir A2 Karamarkovic, Jugoslav P3 Rancev, Sasa A1 Mitic, Slobodan D4 |
| Instituciones: | 1University of Nis, Faculty of Science and Mathematics, Nis, Nisava. Serbia 2University of Belgrade, Technical Faculty in Bor, Bor. Serbia 3University of Nis, Faculty of Civil Engineering and Architecture, Nis, Nisava. Serbia 4Max Planck Institute for Extraterrestrial Physics, Garching bei Munchen, Baviera. Alemania |
| Año: | 2013 |
| Periodo: | Jun |
| Volumen: | 43 |
| Número: | 3 |
| Paginación: | 145-151 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Analítico |
| Resumen en inglés | The electrical breakdown of a gas subject to an up-ramping external voltage is studied, experimentally and theoretically, under conditions leading to the appearance of a positive corona at the anode in the prebreakdown regime. Experimentally, voltage ramps with various rates k in the interval ranging from 0.3 V/s to 26 kV/s are applied to the diode, with the histogram of breakdown voltages being recorded for each rate. The theoretical model gives attention to the pre-breakdown multiplication causing the corona, which tends to reduce the statistical time delay tS before the primary electron is released and hence to make tS comparable to the formative time tF . The multiplication being therefore expected to affect the voltage dependence of the electron yield, a nonlinear equation relating the yield to the overvoltage is introduced. The resulting theoretical expression for the breakdown voltage distribution agrees well with the experimental histograms. Especially noteworthy is the good agreement with the lowvoltage tail of the distribution, a segment of the data that has challenged previous theoretical analyses of the problem |
| Disciplinas: | Física y astronomía, Ingeniería |
| Palabras clave: | Física, Ingeniería eléctrica, Ruptura eléctrica, Voltaje de ruptura, Gases, Diodos, Efecto corona |
| Keyword: | Physics and astronomy, Engineering, Physics, Electrical engineering, Electrical breakdown, Breakdown voltage, Gases, Diodes, Corona discharge |
| Texto completo: | Texto completo (Ver PDF) |
