title: [Problems of ensuring human radiation safety during interplanetary flights].
abstract: The work contains the analyses and discussion of the main sources of space radiation specified for interplanetary flights, the dosimetric functionals used for describing the processes of radiation lesions and reparation of the organism in the conditions of the complex radiation impact with a broad charge composition of cosmic rays and a peculiar spatial and temporal dose behavior. It represents the results of calculations of the radiation risks during the flight and the total lifelong radiation risk with taking into account all the delayed unfavorable biological consequences. The main uncertainties in the calculated values of radiation risk leading to its undervaluation are analyzed. In addition, also provided is the range of theoretical and experimental investigations necessary for the adjustment of coefficient values used in the algorithm of radiation risk calculations, as well as in the nomenclature of experiments for estimating the individual resistance of man to the extreme influence and investigations aimed at estimating and increasing the reliability of the operator activity of cosmonauts.
authors.forename: I B
authors.initials: IB
authors.lastname: Ushakov
authors.forename: V M
authors.initials: VM
authors.lastname: Petrov
authors.forename: A V
authors.initials: AV
authors.lastname: Shafirkin
authors.forename: A S
authors.initials: AS
authors.lastname: Shtemberg
mesh_terms: D000367:Age Factors; D018480:Astronauts; D003359:Cosmic Radiation; D006801:Humans; D008962:Models, Theoretical; D011829:Radiation Dosage; D011835:Radiation Protection / Q000379:methods* / Q000592:standards; D018570:Risk Assessment; D012307:Risk Factors; D012993:Solar Energy; D013026:Space Flight