Nuclear safety and alarm system signalling the beginning of self-sustaining chain reaction in fissile material facilities

Works on nuclear safety and alarm system signalling a self-sustaining chain reaction (SSCR) in fissile material facilities are reviewed. Principles of nuclear safety as a complex of engineering and organizational measures preventing SSCR as well as restricting its sequences during an accident are considered. Experimental data on the investigation into pulse proceeding and radiation sequences of SSCR are given. Radiation doses for phantoms (gamma and neutron radiations) as well as calculated doses of personnel irradiation are presented. Alarm systems and requirements for monitors of alarm systems are considered as well