title: A source localization principle for linear shift-invariant systems with application to point optical and radioactive sources.
abstract: The source localization principle is an inequality between the means of scalar fields produced by different sources in any linear shift-invariant system. This principle is presented here as a pair of conditions (spatial and temporal) under which a point source produces a greater mean field over finite source-centered regions than all other sources. Biomedical applications involving point optical sources and radioactive sources are discussed.
authors.affiliation: Hamilton Regional Cancer Centre, Department of Medical Physics. doug_wyman@hrcc.on.ca
authors.forename: D R
authors.initials: DR
authors.lastname: Wyman
mesh_terms: D006358:Hot Temperature; D053685:Laser Therapy; D008028:Light Coagulation; D016014:Linear Models; D008954:Models, Biological; D055095:Optics and Photonics; D011851:Radioactivity