Scattering from underground tunnels

Uzunoglu, NK; Kanellopoulos, JD

dc.contributor.author	Uzunoglu, NK	en
dc.contributor.author	Kanellopoulos, JD	en
dc.date.accessioned	2014-03-01T01:06:06Z
dc.date.available	2014-03-01T01:06:06Z
dc.date.issued	1982	en
dc.identifier.issn	0305-4470	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/9157
dc.subject.classification	Physics, Multidisciplinary	en
dc.subject.classification	Physics, Mathematical	en
dc.title	Scattering from underground tunnels	en
heal.type	journalArticle	en
heal.identifier.primary	10.1088/0305-4470/15/2/018	en
heal.identifier.secondary	http://dx.doi.org/10.1088/0305-4470/15/2/018	en
heal.identifier.secondary	018	en
heal.language	English	en
heal.publicationDate	1982	en
heal.abstract	The scattering of electromagnetic waves from underground tunnels is investigated analytically. A Green function approach is employed to formulate the problem for horizontally polarised incident waves. This approach results in an integral equation for the unknown interior field E(r) for the buried scatterer region. Expansion of the unknown E(r) field in terms of cylindrical wavefunctions is conjunction with the basic integral equation leads to an infinite set of linear equations. An analytical procedure is developed to decouple this system of equations when the excessive phaseshift inside the scattering region is small. This determines the inner field E(r) of the scatterer. In order to compute the scattered field for the far-field region a steepest descent integration technique is employed. Numerical results are obtained for several cases and are presented.	en
heal.publisher	IOP PUBLISHING LTD	en
heal.journalName	Journal of Physics A: General Physics	en
dc.identifier.doi	10.1088/0305-4470/15/2/018	en
dc.identifier.isi	ISI:A1982NA40200018	en
dc.identifier.volume	15	en
dc.identifier.issue	2	en
dc.identifier.spage	459	en
dc.identifier.epage	471	en