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KMID : 0357520170400030407
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Journal of Radiological Science and Technology
2017 Volume.40 No. 3 p.407 ~ p.413
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Analysis of the Spatial Dose Rates According to the Type of Radiation Source Used in Multi-bed Hospital Room
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Jang Dong-Gun
Kim Jung-Hoon
Park Eun-Tae
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Abstract
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Medical radiation offers significant benefits in diagnosing and treating patients, but it also generates unnecessary radiation exposure to those nearby. Accordingly, the objective of the present study was to analyze spatial dose rate according to types of radiation source term in multi-bed hospital rooms occupied by patients and general public.
MCNPX was used for geometric simulation of multi-bed hospital rooms and radiation source terms, while the radiation source terms were established as whole body bone scan patients and imaging using a portable X-ray generator.
The results of simulation on whole body bone scan patients showed 3.46 μSv/hr to another patient position, while experimental results on imaging using a portable X-ray generator showed 1.47 × 10-8 μSv/irradiation to another patient position in chest imaging and 2.97 × 10-8 μSv/irradiation to another patient position in abdomen imaging.
Multi-bed hospital room, unnecessary radiation generated in the surrounding patients, while legal regulations and systematic measures are needed for radiation exposure in multi-bed hospital rooms that are currently lacking in Korea.
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KEYWORD
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Multi-bed hospital rooms , Spatial dose rate , Whole body bone scan , Portable X-ray generator
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