mass absorption coefficient. A measure of the rate of absorption of radiation, expressed as the absorption cross section per unit mass. Units are m2 kg-1.Click to see full answer. Subsequently, one may also ask, what is meant by absorption coefficient?1. absorption coefficient – a measure of the rate of decrease in the intensity of electromagnetic radiation (as light) as it passes through a given substance; the fraction of incident radiant energy absorbed per unit mass or thickness of an absorber; “absorptance equals 1 minus transmittance”Also, how do you calculate mass absorption coefficient? 2. The Mass Attenuation Coefficient, μ/ρ from which μ/ρ can be obtained from measured values of Io, I and x. Note that the mass thickness is defined as the mass per unit area, and is obtained by multiplying the thickness t by the density ρ, i.e., x = ρt. Simply so, what is mass energy absorption coefficient? The Mass Energy-Absorption Coefficient, μen/ρ 13) represents the average fraction of the kinetic energy of secondary charged particles (produced in all the types of interactions) that is subsequently lost in radiative (photon-emitting) energy-loss processes as the particles slow to rest in the medium.What is the unit of linear attenuation coefficient?Its complement is the transmitted portion of the beam. It is expressed numerically in units of cm-1. Linear attenuation coefficient increases with increasing atomic number and increasing physical density of the absorbing material.