[2.13.8.2] ε(x,y,2π,T), (at a point on the surface of a thermal radiator)
The ratio of the radiant exitance of the thermal radiator at temperature T, at the given point on the surface, to that of a blackbody at the same temperature T.
[2.13.8.2] ε(x,y,2π,T), (at a point on the surface of a thermal radiator)
The ratio of the radiant exitance of the thermal radiator at temperature T, at the given point on the surface, to that of a blackbody at the same temperature T.