The mass absorption coefficient (mac) is preferred over the linear absorption coefficient (lac) because it is independent of the physical form of the material and solely depends on the atomic composition of the sample. The relationship between the two coefficients is defined by the equation mac = lac/density, allowing for the calculation of mac for mixtures or compounds when the mass coefficients of the constituent atoms are known. This distinction is particularly relevant in the context of x-ray coefficients.
PREREQUISITESStudents in physics or materials science, researchers in radiation physics, and professionals working with x-ray imaging and analysis will benefit from this discussion.