Status of blanket design for RTO/RC ITER

Design has progressed on the FW/blanket far the RTO/RC (Reduced Technical Objective/ Reduced Cost) ITER. The basic functions and structures are the same as for the 1998 ITER design. However, design and fabrication methods of the FW/bIanket have been improved to achieve similar to 50 % reduction of the construction cost compared to that for the 1998 ITER design. Detailed blanket module designs with flat, separable EW panels have been developed to reduce the fabrication cost and the future radioactive waste. Most of the R&D performed so far during the EDA (Engineering Design Activity) is still applicable. Further cost reduction methods are also being investigated and additional R&D is being performed.