DocumentCode :
842516
Title :
Negative Streamer Development in FEP Teflon
Author :
Beers, B.L. ; Pine, V.W. ; Hwang, H.C. ; Bloomberg, H.W.
Author_Institution :
Radiation and Electromagnetics Division Science Applications, Inc. Vienna, Virginia 22180
Volume :
26
Issue :
6
fYear :
1979
Firstpage :
5127
Lastpage :
5133
Abstract :
A computational model is developed which describes the evolution and propagation of an ionizing front (negative streamer) in solid materials. The ionization front consists of drifting avalanching electrons moving self-consistently under the influence of their own space-charge field together with an applied external field. The required input information for the model consists of the functional dependence of the macroscopic transport coefficients on the local electric field, the initial conditions for beginning the calculation, and the strength of the applied field. A computational approach for specifying the transport coefficients and initional conditions is also described. The approach has been implemented by constructing three computer codes which sequentially interface, beginning with single electron scattering, and ending with streamer development. Computational results are presented for model calculations in Teflon. The overall model is perceived to provide a picture of the initiation phase of a propagating discharge in electron-irradiated dielectrics.
Keywords :
Computational modeling; Dielectric materials; Electromagnetic propagation; Electromagnetic radiation; Electrons; Gases; Ionization; Kernel; Particle scattering; Solid modeling;
fLanguage :
English
Journal_Title :
Nuclear Science, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9499
Type :
jour
DOI :
10.1109/TNS.1979.4330284
Filename :
4330284
Link To Document :
بازگشت