Scientific foundations of safety and results of the Federal target program on nuclear radiation safety

One of the basic principles of regulation of nuclear and radiation safety in the field of nuclear energy usage is the principle of proportionality of regulating impact to the hazard level of activity in the field of atomic energy usage. It is of current interest as to legacy objects and to the final stages of the life cycle (management of spent nuclear fuel and radioactive waste, decommissioning). It is pointed out that there is a need to develop a simple and efficient tool capable to solve the problems in the field of radiation safety. Such a tool is a definition of a complex index of the potential hazard of nuclear and radiation-hazardous facilities for the population and the environment. Currently for methodical support of categorizing of facilities for special radioactive waste storage and disposal approaches to assessment of the current level of their safety in the form of relative numerical expression with the use of calculation of the complex index of the potential hazard is developed. The results of effectiveness analysis of those or other activities, including those on the basis of determination of the complex index of the hazard, should be the basis for better management in the field of atomic energy, including legacy objects, and can be used for the purpose of optimization of nuclear safety regulation