Determination of effective atomic number of composite materials using backscattered gamma photons – A novel method

An Investigation on Radiation Shielding Properties of Borosilicate Glass Systems

“…The LAC, which is a quantity that needs to be investigated in many materials to be effectively protected from radiation, gives the probability of any interaction per unit length of a photon, and it expresses the total probability of occurrence of photoelectric events, Compton scattering, pair formation events. The LAC is expressed as [36][37][38];…”

“…and the mass attenuation coefficient (MAC) is calculated by dividing the LAC by the specific gravity of the material. The MAC gives the rate of attenuation of the beam per unit mass and is expressed as [36][37][38];…”

“…The appropriate material thickness that causes the intensity of radiation passing through a target to decrease to half intensity by interacting with the material is also called the half-value layer (HVL) and is expressed with the formula [36][37][38];…”

“…The tenth-value layer (TVL) is defined as the material depth value that allows the incoming radiation intensity to decrease to one-tenth value and is formulated in the form of [36][37][38];…”

“…The mean free path (MFP), another of the shielding parameters, is defined by the following formula as the distance traveled by a particle before possible collisions with other particles [36][37][38].…”