Technical aspects of innovative nuclear systems including reliability and safety

The current stage of innovative technology selection requires extensive interaction between the regulators and engineers, designers, environmentalists, investors and politicians in order to develop mutually acceptable underlying principles, approaches and, if possible, unified standards. New regulatory standards should ensure that safety enhancements precede the increase in a scale of nuclear power development. Preliminary analysis shows that the new technology - the use of solid coolant in nuclear reactors - could meet broad range of User Requirements for innovative technologies. It seems that development of innovative technologies requires a concerted effort of the world community. (author)