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Electric field of a relativistic electron avalanche
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Electricity.
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2012 (English)In: 2012 31st International Conference on Lightning Protection, ICLP 2012, 2012, 6344240- p.Conference paper, Published paper (Refereed)
Abstract [en]

In the present study, electromagnetic fields of accelerating charges were utilized to evaluate the electromagnetic fields generated by a relativistic electron avalanche. In the analysis it is assumed that all the electrons in the avalanche are moving with the same speed. In other words, the growth or the decay of the number of electrons takes place only at the head of the avalanche. It is shown that the radiation is emanating only from the head of the avalanche where electrons are being accelerated. It is also shown that an analytical expression for the radiation field of the avalanche at any distance can be written directly in terms of the e-folding length of the avalanche. This makes it possible to extract directly the spatial variation of the e-folding length of the avalanche from the measured radiation fields.

Place, publisher, year, edition, pages
2012. 6344240- p.
Keyword [en]
Electromagnetic Fields, Lightning, TEM mode, transmission lines, Analytical expressions, E-folding, Number of electrons, Radiation field, Relativistic electron, Spatial variations, TEM modes, Electric fields, Electric lines, Lightning protection, Electrons
National Category
Engineering and Technology
Research subject
Engineering Science with specialization in Science of Electricity
Identifiers
URN: urn:nbn:se:uu:diva-193897DOI: 10.1109/ICLP.2012.6344240ISBN: 9781467318976 (print)OAI: oai:DiVA.org:uu-193897DiVA: diva2:604848
Conference
2012 31st International Conference on Lightning Protection, ICLP 2012, 2 September 2012 through 7 September 2012, Vienna
Available from: 2013-02-12 Created: 2013-02-06 Last updated: 2013-03-04Bibliographically approved

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Cooray, Vernon

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