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KMID : 1151820170110060423
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Journal of the Korean Society of Radiology
2017 Volume.11 No. 6 p.423 ~ p.428
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Assessment of Spatial Dose Distribution in the Diagnostic Imaging Laboratory by Monte Carlo Simulation
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Cho Yun-Hyeong
Kang Bo-Sun
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Abstract
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In this study, the calculation of the effective spatial dose distribution of the diagnostic imaging laboratory of K university was performed by the Monte Carlo simulation. The radiation generator has a maximum tube voltage of 150 kVp and a maximum current of 700 mA. Using the results, we compared the spatial effective dose distributions of diagnostic imaging laboratory when the shielding door was closed and opened. In conclusion, it was found that the effective dose in the operating room of the diagnostic imaging laboratory does not exceed the annual dose limit (6 mSv/y) of the student (occasional visitor) even when the door is opened. However, since the effective dose when the door is open is about 16 times higher in front of the lead glass window and about 3,000 times higher in front of the doorway than the case when the door is closed, closing the shielding door at the time of the practical exercising reduces unnecessary radiation exposure by great extent.
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KEYWORD
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Monte Carlo simulation, X-ray Generator, Dose Distribution, Dose limit
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