This international scientific journal is devoted to the thermal-hydraulic, mechanical and structural aspects associated with nuclear fission energy, comprising topics of civil, mechanical and chemical engineering, applied nuclear physics and health physics. Topics covered within the scope of the journal include structures, fluids, thermal-hydraulics, heat transfer and structural materials pertinent to fission reactor engineering, design and safety. In addition, the journal also covers reprocessing, waste repository and decommissioning technology. Among the journal's distinct features are topical issues dedicated to the important SMiRT (Structural Mechanics in Reactor Technology) Conferences.