RESUMO
As is known, medical radiation has a big impact on the increase of population doses, which determines the risk of increasing population's radiation. Thus, it is relevant the determination of the radiation doses in patients during X-ray diagnostic procedures up to now. The aim of our research is the examination of the effective equivalent doses and their determination during X-ray. Due to the experimental modeling method by using phantom and TLD it has been determined average absorbed doses in separate organs of patients, also the effective equivalent dose during chest organs radiology, which is 122 mrem. It has been relieved that numerical index of the effective equivalent dose was significantly different from consistent inputted exposure and superficial dose indexes, that where often used for the assessment of radiation risk in patients, HE is eight times different from the corresponding value of EED, which amounted to about 1400mR per 1000 mR of EED. It has been established that on "other" organs (on the liver and gastrointestinal tract) the radiation has a big importance for the whole organism radiation exposure in the total effect. The protection of these organs is advisable in every cases, if they are the research object of X-ray or not. Additionally, the contribution of "other" organs is not less than lung lobes, which do not present the research object of X-ray. It has been established the prospects of computing methods due to conducted studies for the determination of the effective equivalent dose in patients for the assessment of X-ray radiation risk.