Radiation field from a rectangular plaque source: critique of some engineering approximations.
Geometry-dependent effects upon the response of an omnidirectional detector and rectangular source configuration are reviewed. A survey of approximations is conducted and evaluation of regions of validity performed. A variant of the Wallace approximation is shown to produce values that do not vary from "exact" calculations by more than +/- 5%, often yielding results that are within +/- 1%.
Ghose
A M
AM
Commission of the European Communities, Ispra Establishment.
Bradley
D A
DA
Hubbell
J H
JH
D008433:Mathematics; D008962:Models, Theoretical; D011874:Radiometry