internal absorptance

internal absorptance

[in′tərn·əl əb′sȯrp·təns]
(electromagnetism)
The value of absorptance, corrected to eliminate the effects of scattering and of reflection from the surfaces of the substance; that is, the ratio of the radiant power absorbed between the entry and exit surfaces of the substance to the radiant power leaving the entry surface.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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