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Effective atomic numbers, electron densities and kinetic energy released in matter of vitamins for photon interaction
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Journal Article
Effective atomic numbers, electron densities and kinetic energy released in matter of vitamins for photon interaction
2014
Overview
Effective atomic numbers, electron densities of some vitamins (Retinol, Riboflavin, Niacin, Biotin, Folic acid, Cobalamin, Phylloquinone and Flavonoids) composed of C, H, O, N, Co, P and S have been calculated for total and partial photon interactions by the direct method for energy range 1 keV–100 GeV by using WinXCOM and kinetic energy released in matter (Kerma) relative to air is calculated in energy range of 1 keV–20 MeV. Change in effective atomic number and electron density with energy is calculated for all photon interactions. Variation of photon mass attenuation coefficients with energy are shown graphically only for total photon interaction. It is observed that change in mass attenuation coefficient with composition of different chemicals is very large below 100 keV and moderate between 100 keV and 10 MeV and negligible above 10 MeV. Behaviour of vitamins is almost indistinguishable except biotin and cobalamin because of large range of atomic numbers from 1(H) to 16 (S) and 1(H) to 27(Co) respectively.
K
a
value shows a peak due to the photoelectric effect around K-absorption edge of high-
Z
constituent of compound for biotin and cobalamin.
Publisher
Springer India,Springer Nature B.V
