IEVref:845-04-88ID:
Language:enStatus: Obsolete
Term: spectral absorptivity (of an absorbing material)
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Symbol: αi,o(λ)
Definition: spectral internal absorptance of a layer of the material such that the path of the radiation is of unit length, and under conditions in which the boundary of the material has no influence

unit : 1

NOTE – The unit length must be specified. If a new unit length is used that is k times the magnitude of the original one, then the value of αi,o(λ) = 1 — τi,o(λ) will change to α'i,o(λ) = 1 — [ τi,o(λ)]k


Publication date:1987
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