Assessment of regulatory requirements in diagnostic X-ray facilities in Bangladesh
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Abstract
X-ray imaging is one of the very old powerful modalities of diagnostic procedures. Bangladesh has a history of over 80
years of using X-rays for medical diagnostic purposes. But many of the users do not have enough knowledge about the
potential risks associated with ionizing radiation like X-ray. To create awareness on radiation safety, Bangladesh
Government for the first time promulgated nuclear safety and radiation control (NSRC) act in 1993 and corresponding
NSRC regulation in 1997. The purpose of the current study is to evaluate shielding structure of some diagnostic x-ray
facilities in Jessore district of Bangladesh with respect to regulatory standards. Radiation dose levels are also measured at
different points in order to investigate the shielding adequacy of the facility. Estimated dose levels were found higher than
the regulatory limit (0.5µSv/h) across the entrance door (ED) of 66% facilities. Secondary walls of the X-ray room were
found adequately shielded with 10 inch brick wall. The shielding structure of control panel (CP) of the four facilities was
not sufficient according to regulation and there was no shielding in the viewing window of CP of two facilities and the lead
shielding thickness at the same points of two other facilities was found less than the regulatory requirement 2 mm lead
thickness. Only 4 X-ray operators hold a qualified diploma as radiographer among 16 operators which could affect overall
radiation safety features.