Electron avalanche and surface charging on alumina insulators during pulsed high‐voltage stress

Autor:	Dal Jensen, J. P. Brainard
Rok vydání:	1974
Předmět:	Electron avalanche Materials science Avalanche diode Condensed matter physics Physics::Instrumentation and Detectors General Physics and Astronomy High voltage Insulator (electricity) Surface charge Electron Avalanche breakdown Diode
Zdroj:	Journal of Applied Physics. 45:3260-3265
ISSN:	1089-7550 0021-8979
DOI:	10.1063/1.1663770
Popis:	This paper describes a model for insulator surface charging in high‐voltage ceramic vacuum diodes. The model involves electron emission from the insulator‐cathode‐vacuum junction followed by electron avalanches on the insulator surface which leave the wall positively charged. Experiments were performed to measure (i) the triple‐junction (cathode‐vacuum‐insulator interface) emission and its relation to the initiation of the avalanche, (ii) the dynamic current in the avalanche, and (iii) the saturated surface charge resulting from the avalanche. The experimental results were interpreted by computer simulation in terms of the model and were found to be in close agreement with the predictions.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3bf931be850461b3351ba90560a2c7b2 https://doi.org/10.1063/1.1663770 Zobrazit plný text záznamu