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Absorption coefficient

Definition of the noun absorption coefficient

What does absorption coefficient mean as a name of something?


  1. a measure of the rate of decrease in the intensity of electromagnetic radiation (as light) as it passes through a given substance; the fraction of incident radiant energy absorbed per unit mass or thickness of an absorber


The absorption coefficient α is a property of a material. It defines the extent to which a material absorbs energy, for example that of sound waves or electromagnetic radiation. Wallace Sabine was a pioneer of this concept in acoustics and defined the unit of the Sabin. A Sabin is defined as the absorption by a 1m square slab of perfectly-absorptive material.

Printed dictionaries and other books with definitions for Absorption coefficient

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Google previewIllustrated Encyclopedia of Applied and Engineering Physics, Three-Volume Set (2017)

by Robert Splinter

Absorption coefficient, linear 11 A Absorption, of gamma rays [atomic] High- energy photon absorption in the nuclear core of an atom. Absorption, of radiation, heat [atomic] Conversion of electromagnetic energy to thermal energy.

Google previewDictionary of Chemistry

absorption coefficient (a) is the relative decrease in the intensity of a collimated beam of electromagnetic ...

Google previewFiber Optics Standard Dictionary (2012)

by Martin Weik

Note 1: The absorption coefficient is expressed in units of reciprocal distance. Note 2: The absorption coefficient is represented by b in the exponent of the absorption equation that expresses Bouger's law, given by the relation F = Foe" where F ...

Google previewThe Encyclopedia of Wood (2011)

by U.S. Department of Agriculture

The absorption coefficient of a material varies with the type and energyof ...

Google previewA Dictionary of Construction, Surveying, and Civil Engineering (2012)

by Christopher Gorse, David Johnston, Martin Pritchard

absorption rate (absorption coefficient of water) The rate of water absorption, ingress by capillary action, into a material when exposed to a ...

Google previewInternational Encyclopedia of Ergonomics and Human Factors, Second Edition - 3 Volume Set (2006)

by Informa Healthcare, Waldemar Karwowski

the sound absorption coefficient equals sound energy absorbed (converted to heat) divided by the incident sound energy. Therefore, absorptioncaused transmission losses are calculated by multiplying the ...

Google previewFiber Optics Illustrated Dictionary (2002)

by J.K. Petersen

Depending upon the matter in which absorption occurs, a region of electromagnetic frequencies wherein the absorption coefficient reaches a relative maximum. See absorption coefficient. absorption coefficient A measure of the fraction of ...

Google previewArchitect's Illustrated Pocket Dictionary (2012)

by Nikolas Davies, Erkki Jokiniemi

below: *absorption coefficient; *acoustic absorption coefficient, see sound absorption coefficient; *air-to-air heat transmission coefficient, see U-value; * coefficient of diffusion, see diffusion coefficient; *coefficient of heat transfer, see U -value; ...

Google previewConcise Dictionary of Biomedicine and Molecular Biology (2001)

by Pei-Show Juo

Absinthism • Absorption Coefficient 6 Absinthism An addiction to absinthe. Absinthium The common wormwood. Artemisia absinthium, a bitter plant used as a stomachic tonic, anthelmintic, and flavoring in alcohol beverage. Absolute Alcohol ...

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Absorption coefficient Meaning

Video shows what absorption coefficient means. A measure of the absorption of electromagnetic radiation as it passes through a specific substance; the fraction ...

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