= Mass attenuation coefficient
{wiki=Mass_attenuation_coefficient}
The mass attenuation coefficient (\\(\\mu/\\rho\\)) is a measure of how much a certain material can attenuate (reduce the intensity of) a beam of radiation as it passes through that material. It is defined as the ratio of the linear attenuation coefficient (\\(\\mu\\)) to the density (\\(\\rho\\)) of the material. The mass attenuation coefficient is expressed in units of area per unit mass, typically in cm²/g.
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