Radiometric properties of isothermal, diffuse wall cavity sources.

Total radiant power emission from various diffuse wall cavity sources is calculated without approximation. In addition, a useful radiometric quantity, (o-d), the fraction of blackbody power received by a distant viewer, is precisely defined and calculated. Extensive tabulation of numerical results and tutorial background are included. A new method, faster and more accurate than traditional quadrature methods, for the numerical solution of integral-equations is described in an appendix. Results are applied to the practical problems of cavity design and analysis.