Considerations in the Development of Safety Requirements for Innovative Reactors: Application to Modular High Temperature Gas Cooled Reactors

This publication describes a general approach for assessing the safety of the design of advanced and innovative reactors, and of reactors in general including research reactors with characteristics that differ from those of light water reactors. A method is put forward for safety assessment that is based on the well established and accepted principle of defence in depth. The modular high temperature gas cooled reactor has been selected as a case study to demonstrate the viability of the method proposed.