[An approach to formalized description of the spacecraft radiation safety task].

Relationships correlating the damage expected from radiation exposure in space mission with radiobiological reactions of the body, parameters of radiation environment along the trajectory, and shielding properties of spacecraft structures were established with the use of mathematical tools of the set theory and the theory of chances. To this end, appropriate mathematical formulas were introduced which aided formalization of the space crew radiation safety task in the form of two inequalities.