Enter the attenuation coefficient and the mass density into the Calculator. The calculator will evaluate the Mass Absorption Coefficient. 

Mass Absorption Coefficient Formula

MSC = u / p


  • MSC is the Mass Absorption Coefficient ()
  • u is the attenuation coefficient
  • p is the mass density

To calculate Mass Absorption Coefficient, divide the attenuation coefficient by the mass density.

How to Calculate Mass Absorption Coefficient?

The following steps outline how to calculate the Mass Absorption Coefficient.

  1. First, determine the attenuation coefficient. 
  2. Next, determine the mass density. 
  3. Next, gather the formula from above = MSC = u / p.
  4. Finally, calculate the Mass Absorption Coefficient.
  5. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

attenuation coefficient = 40

mass density = 20

FAQs about Mass Absorption Coefficient

What is the significance of the Mass Absorption Coefficient in practical applications?

Mass Absorption Coefficient is crucial in fields like radiology, material science, and nuclear physics, as it helps in determining how much of a specific type of radiation is absorbed by a material. This information is vital for ensuring safety in radiation use, optimizing material properties for specific applications, and understanding the interaction between radiation and matter.

How does the attenuation coefficient affect the Mass Absorption Coefficient?

The attenuation coefficient represents how easily a material can attenuate (reduce the intensity of) radiation. A higher attenuation coefficient means that the material is more effective at absorbing radiation, leading to a higher Mass Absorption Coefficient when divided by the mass density. This relationship allows for the quantification of a material’s effectiveness in absorbing radiation.

Can the Mass Absorption Coefficient vary with different types of radiation?

Yes, the Mass Absorption Coefficient can vary significantly with different types of radiation (e.g., X-rays, gamma rays, neutrons). Different materials interact with these types of radiation in unique ways, leading to variations in the Mass Absorption Coefficient. This variability is why specific materials are chosen for radiation shielding based on the type of radiation present.

Is it possible to calculate the Mass Absorption Coefficient for composite materials?

Yes, it is possible to calculate the Mass Absorption Coefficient for composite materials, but the process is more complex. It involves calculating the weighted average of the Mass Absorption Coefficients of the individual components based on their volume or mass fractions. This approach requires detailed knowledge of the composite’s composition and the Mass Absorption Coefficients of its constituents.