Gamma Ray Attenuation In Composite Materials
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Date
2010-07
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Addis Ababa University
Abstract
Attenuation due to scattering or absorbtion of photons in composite materials depend
basically up on two factors, the effective atomic number and electronic density of the
absorber material. This project discuses recent studies concerning this title (gamma ray
attenuation in composite materials). Many researchers use attenuation data to compute
effective atomic number, electronic density and other parameters such as absorption
coefficient total attenuation cross section of composite materials using their own and
reported earlier methods. Most of the studies compiled in this paper have been done
in a well-collimated narrow beam of lower and medium energy range of photon where
photoelectric absorbtion and compton scattering are dominant photon interaction process.
This work also includes photon interaction of selected human body parts and shielding
materials from this it is concluded that while exposing large dimensional biological samples
to the lower energy care must be taken for buildup photons to protect this shielding is
necessary
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Gamma Ray Attenuation