Studies on mass attenuation coefficients, effective atomic numbers and electron densities for some biomolecules

MoO3-TeO2 glass system for gamma ray shielding applications

“…GEANT4 is a radiation propagation Monte Carlo toolkit [17]. This toolkit can be used in numerous fields including high energy physics, astroparticle applications, medical applications, radiation shielding applications [20,21]. For the radiation shielding studies, GEANT4 offers a wide range of physical models to handle all electromagnetic and nuclear interactions that may occur between the radiation and the shield material.…”

“…f i refers to the fractional abundance, and A i is the atomic weight. Then, electron density (N eff ) can be calculated by the equation below[20];…”

Investigation of mass attenuation coefficients, effective atomic numbers, and effective electron density for some molecules: study on chemotherapy drugs

“…There are three energy regions, E < 10 keV, 100 keV < E < 3 MeV, and E > 100 MeV, where photoelectric absorption, compton scattering, and pair production, respectively, are the dominating event (Büyükyıldız, 2016;Jackson & Hawkes, 1981;Singh Mann et al, 2016;Tonguc et al, 2018;Tuğrul & Eroğul, 2020). Photoelectric absorption depends on E 3 (Energy) and Z 4−5 and it is the dominating at low energies.…”

“…Some researchers have studied on the mass attenuation coefficient (μ=ρ), the effective atomic numbers (Z eff ), and effective electron density (N eff ) of different materials or compounds. Recently, the Z eff and N eff parameters have been examined in important investigations such as materials used in medicine and nuclear physics, drugs, and some compounds (Kahn, 2003;Kaur et al, 2017;Mann et al, 2015;Sayyed et al, 2018;Singh et al, 2018;Tonguc et al, 2018).…”

“…Data about photon attenuation parameters such as μ=ρ, Z eff and N eff is also important in the calculations of dose taken by biological molecules, which are the main structural components in human tissues, and in characterization of materials. Radiation interaction in material is related with photon energy, density and atomic number of elements (Kaur et al, 2017;Tonguc et al, 2018).…”