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Information × Registration Number 0218U000390, 0117U001048 , R & D reports Title Assessment of radiation risks for Ukrainian population from diagnostic radiology and the approaches to their reduction popup.stage_title Head Stadnyk L.L., Registration Date 26-01-2018 Organization State Organization "Grigoriev Institute for Medical Radiologiy of the National Academy of Medical Sciences of Ukraine" popup.description2 Object of study: effective doses of "standard" patients in various types of X-ray diagnostic examinations, radiation risks from medical diagnostic exposure. Purpose: evaluation of the collective effective doses and radiation risks of the population in Ukraine from the most common types of X-ray diagnostic examinations and determination of the ways to their reduction. Methods and equipment: semiconductor and thermoluminescence dosimetry, methods of mathematical statistics; method of phantom simulation (mathematical and physical phantoms), thermoluminescence unit PCL-3, universal dosimeter Piranha 657, ionization dosimeter DRTS-01, anthropomorphic heterogeneous phantom of "standard" patient. Theoretical and practical results: the distribution of equivalent doses for the "standard" man using the phantom simulation of irradiation conditions for 7 common types of X-ray diagnostic examinations was evaluated. The conversion coefficients from the controlled dosimetry values in routine practice to the effective dose values are determined. The results have been confirmed by 46 phantom simulations on 9 X-ray Diagnostic units. There was established the necessity of phantom simulation of medical exposure according to the energy spectrum of X-ray exposure for old and new types of X-ray Diagnostic systems for determining the conversion coefficients. Novelty: firstly in Ukraine, the conversion coefficients from the controlled dosimetry values to the effective doses values for "standard" patients were determined based on the results of phantom simulation of the exposure conditions for common types of X-ray examinations. It is proved that the estimation of collective effective doses of the Ukrainian population and the expected radiation risks should be performed according to the definition of effective doses based on the results of radiation output measurements and patients' exposure data. Effectiveness of implementation: the estimation of collective effective doses of the population and radiation risks in general and from different types of X-ray diagnostic exams will help to determine the such types of researches that form the largest doses for population and to need in optimization of radiation protection by the introduction of new technologies, modern digital low-dose equipment and reduction of un-justification exposure Areas of applications: radiation hygiene, X-ray diagnostics. Product Description popup.authors Дем'яненко В.В. Кургузов Є.І. Носик О.В. Смирнова І.П. Стадник Л.Л. Шальопа О.Ю. Шуліка Н.І. popup.nrat_date 2020-04-02 Close