LAYERED PEBBLE BED CONCEPT FOR ITER BREEDING BLANKET

Design efforts have been continued to refine and simplify the layered pebble bed design for the ITER breeding blanket. Detailed neutronics and thermal analyses were conducted to investigate the optimal configuration. Static and dynamic stress analyses were carried out to examine stress and deformation of the blanket box structure under disruption electromagnetic forces. Fabrication and assembly procedure were also studied. The present paper summarizes current status of the layered pebble bed breeding blanket design.