Chapter 11 Fundamentals of Thermal Radiation Blackbody Radiation 11-14C A blackbody is a perfect emitter and absorber of radiation. A blackbody does not actually exist. It is an idealized body that emits the maximum amount of radiation that can be emitted by a surface at a given temperature. 11-15C Spectral blackbody emissive poweris the amount of radiation energy emitted by a blackbody at an absolute temperature T per unit time, per unit surface area and per unit wavelength about wavelength λ. The integration of the spectral blackbody emissive power over the entire wavelength spectrum gives the total blackbody emissive power, ∫∞==04)()(TdTETEbbσλλThe spectral blackbody emissive power varies with wavelength, the total blackbody emissive power does
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