title: Equivalent blackbody radiation theory and its use in the radiation property measurement of a semitransparent body.
abstract: To quantitatively measure the ambient radiation reflected by a target, in an earlier paper [Zhang et al., Appl. Opt. 25, 3683-3689 (1986)] we presented the equivalent blackbody radiation theory. In this paper we give a theoretical demonstration of that theory and generalize it from the case of an opaque body to the case of a semitransparent body. Several methods are proposed to measure the transmittance, the emissivity, the reflectance, and the true temperature of an opaque or semitransparent body. Good quantitative experimental results are obtained.
authors.forename: Y W
authors.initials: YW
authors.lastname: Zhang
authors.forename: Z X
authors.initials: ZX
authors.lastname: Jiang