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Abstract
Investigation and measurement of the radiation dose level of routine X-ray diagnostic examinations were carried out on the spot, the results were as follows: Radiation dose of routine radiography: chest 0.258-1.032 x 10(-4) c/kg (0.1-0.4R); spinal and abdomen 0.774-1.806 x 10(-4) c/kg (0.3-0.7R); skull 0.774-1.032 x 10(-4) c/kg (0.3-0.4R) and gastrointestinal study 2.58-7.74 x 10(-4) c/kg (1-3R). Experiments employing different kV and mAs, and radiation exposure on 12-18 mm A1 phantoms while measuring the radiation dose and film density showed that radiation dose can be substantially reduced by improving the quality of X-ray beam for instance with the routine radiographic parameters for the chest, if the voltage is increased by 20 kV, radiation dose can be reduced to 65% or an additional 2 mm A1 filter can also reduce the dose to 60-65%.
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