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KMID : 1151820140080040155
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Journal of the Korean Society of Radiology
2014 Volume.8 No. 4 p.155 ~ p.161
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Dose Evaluation Using Mathematical Simulation of Radiation Exposure Body in Mammography System
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Lee Jin-Soo
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Abstract
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Mammography is mostly performed by series projection on both breasts. While taking mammography, it is less than average glandular dose of 3 mGy which regulated. But mammography is exposed much more doses actually, due to additional or series projection. Also, it is difficult to recognize around organ dose except exposed breast. Using mathematical simulation of radiation exposure body in mammography, we studied around organ dose distribution by changing thickness(25, 30, 50 μm) of filter and relative absorption dose rate which set on basis of exposed breast. as a result, when setting of basis of exposed breast, dose of opposite breast is more affected approximately from 79.26 to 86.31%. when using 25 μm of filter thickness than 30 μm, 50 μm of filter thickness in Mo/Mo, W/Rh combination which used actually, absorbed dose rates for opposite breast and around organ were low.
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KEYWORD
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mammography, Mathematical simulation of radiation exposure body, organ dose
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