Absorptionskoefficient
Absorptionskoefficienten på et volumen af et materiale er karakteriseret af hvor nemt det er for en stråle af lys, lyd, partikler eller anden type energi eller masse at blive absorberet.[1] En stor absorptionskoefficient betyder at strålen hurtigt bliver absorberet (altså svækket) idet den passerer igennem mediet, og en lille absorptionskoefficient betyder at mediet er relativt transparent. SI-enheden for absorptionskoefficienten er reciprokmeter (m−1). I formler benyttes µ for absorptionskoefficienten.
Noter
- ^ (engelsk) International Union of Pure and Applied Chemistry. "Attenuation coefficient". Compendium of Chemical Terminology Internet-udgave.
Eksterne henvisninger
- Absorption Coefficients α of Building Materials and Finishes
- Sound Absorption Coefficients for Some Common Materials
- Computations for Radio Wave Propagation
- Tables of X-Ray Mass Attenuation Coefficients and Mass Energy-Absorption Coefficients from 1 keV to 20 MeV for Elements Z = 1 to 92 and 48 Additional Substances of Dosimetric Interest
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