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Attenuation Coefficient

Applicable units are those of quantitykind:AttenuationCoefficient

The attenuation coefficient is a quantity that characterizes how easily a material or medium can be penetrated by a beam of light, sound, particles, or other energy or matter. A large attenuation coefficient means that the beam is quickly "attenuated" (weakened) as it passes through the medium, and a small attenuation coefficient means that the medium is relatively transparent to the beam. The Attenuation Coefficient is also called linear attenuation coefficient, narrow beam attenuation coefficient, or absorption coefficient.

http://en.wikipedia.org/wiki/Attenuation_coefficient

$F(x) = Ae^{-\alpha x} \cos{[\beta (x - x_0)]}$, then $\alpha$ is the attenuation coefficient and $\beta$ is the phase coefficient.

$\alpha$

The attenuation coefficient is a quantity that characterizes how easily a material or medium can be penetrated by a beam of light, sound, particles, or other energy or matter. A large attenuation coefficient means that the beam is quickly "attenuated" (weakened) as it passes through the medium, and a small attenuation coefficient means that the medium is relatively transparent to the beam. The Attenuation Coefficient is also called linear attenuation coefficient, narrow beam attenuation coefficient, or absorption coefficient.

belongs to SOQ-ISO