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PECULIARITIES OF RADIATION NORMALIZATION IN THE USSR (RUSSIA) AND THE USA CONCERNING TO LONG-TERM PILOTABLE SPACE FLIGHTS

Retrospectively, from the 60s of the last century to the present time, coordinated approaches have been considered in our country and in the United States in addressing the issues of ensuring radiation safety and radiation rating of short-term space flights and establishing the maximum radiation exposure levels for cosmonauts and astronauts. At the same time, for long space flights some basic differences in the choice of radiation hazard criteria for a complex (in contrast to terrestrial) character of the radiation impact of cosmic radiation are shown. Differences in models of the formation of the radiation hazard to the organism are also noted taking into account the recovery and compensatory processes. A thorough experimental and model substantiation of not only the risk of immediate effects, but also the main and unfavorable long-term effects of cosmic radiation on cosmonauts, have been carried out. To solve problems of rationing in Russia and establish the dose limits for cosmonauts, the results of unique experiments are presented and quantitative approaches to the determination of the state of the leading regulatory systems, body reserves, the total radiation risk throughout the life of cosmonauts, as well as the possible reduction of the average life expectancy.