Complex sentence: The linear attenuation coefficient and mass attenuation coefficient are related such that the mass attenuation coeffecient is simply μ/ρ, where ρ is the density in g/cm 3.
Split into simpler sentences: The linear attenuation coefficient and mass attenuation coefficient are related. The mass attenuation coeffecient simply μ/ρ where ρ is the density in g/cm 3.