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The skeletal muscle tissues, the mass-attenuation coefficient (µ/ρ) at 20-keV X-ray beam is 1.856×10-1 (cm2/g). Taking the density of muscle tissue ρ = 2.05 (g/cm3), determine the given X-ray energy physical properties : (a) Linear attenuation coefficent, µ (m-1), (b) Half-layer value (HVL) (in meters), and (c) mean-free-path, mfp (in meters).

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