Abstract
Clay-based bricks are used worldwide in the construction industry due to their mechanical properties and durability. To design or evaluate the shielding of a room having a X-ray radiation source, is necessary to determine the walls thickness (barriers) necessary to reduce the dose due to primary, scattered and leakage radiation. For these calculations is required to know the dose transmission of room walls materials. In this work, Monte Carlo methods were used to estimate the Ka, H*(10) and H* transmission values of the red brick for X-rays produced when 70, 90 and 120 keV electrons collide with a tungsten target and pass through a 0.28 cm-thick aluminum filter. Dose transmission values in function of shielding thickness were fitted to a semiempirical function. Curves of dose transmission, and the parameters obtained by the fitting process, can be used to evaluate or to design a shielding based on clay bricks.
Published Version
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