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A Study on Calculation of the Thickness of Concrete Protective Barrier of X-ray Radiographic Room  

Park, Cheol-Seo (Department of Physics, Pukyeong National University)
Publication Information
Journal of radiological science and technology / v.33, no.4, 2010 , pp. 363-367 More about this Journal
Abstract
In this paper we proposed an easy method to calculate the thickness of primary protective barrier for radiographic equipment. The concrete was selected for the shielding material. The area of protective barrier was divided into a controlled area and a noncontrolled area. For the computation of thickness, the data in NCRP Report 49 and 51 was used. For radiographic equipments whose maximum tubevoltages are 100 and 150 kVp, the thicknesses of concrete were calculated as a function of distance. From the calculated data, four analytical models were acquired by fitting an exponential decay function. From the equations acquired by this study, the thickness of primary protective barrier can be calculated approximately.
Keywords
Shielding; Concrete; Radiograhic equipment; Protective barrier;
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