Study of exposure and energy absorption buildup factor for some building materials available in Iraq
Abstract
Exposure buildup factor (EBF) and energy absorption buildup factor (EABF)
for some building materials (cement, clay brick, thermiston, gypsum and ordinary
concrete) available in Iraq at the photon energy range 0.015-15.0 MeV up to
penetration depth 40 mfp has been calculated using five parameter geometric
progression (G.P) fitting formula. The variation of EBF and EABF with incident
photon energy, penetration depth and equivalent atomic number (Zeq) for the selected
building materials has been studied. Variation in value of EABF was due to
dominance of different interaction processes in different energy regions and the
chemical composition of studied materials. Also, the half value layer of chosen
building materials has been computed as a function of incident photon energy. It was
observed that concrete has well gamma ray shielding materials than other selected
building materials.
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Copyright (c) 2015 Abbas J. Al-Saadi
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