Estimation of effective doses to patients during dental X-ray examinations
Keywords:X-ray radiation, Monte Carlo method, voxel phantoms, radiation doses, dental X-ray examinations, TASMIP
Purpose.The paper is devoted to estimating radiation doses to patients from dental X-ray examinations.
Methods. The Monte Carlo method was used to simulate the radiation transport within the ICRP reference human phantoms and estimate the energy deposition in organs and tissues.
Findings. The model of dental X-ray unit was developed. The ICRP voxel phantoms were adapted for modeling dental X-ray examinations taking into account the rules of exposure (the tangent rule and the bisector rule). The absorbed dose distributions within organs and tissues were obtained with the help of the Monte Carlo method. Radiation doses to organs and tissues were calculated. The conversion coefficients Ke were derived from these data.
Application field of research. The results obtained can be used for preparing the guidelines for medical establishments or as a basement for developing the software for estimating radiation doses to patients during different X-ray examinations.
Conclusions. The values of the conversion coefficients which link the effective dose values with the X-ray tube parameters and the type of the examination were determined. The possibility of their practical application was shown.
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