FW/Blanket and vacuum vessel for RTO/RC ITER

The design has progressed on the vacuum vessel and First Wall (FW)/blanket for the Reduced Technical Objective/Reduced Cost (RTO/RC) ITER. The basic f unctions and structures are the same as for the 1998 ITER design. The desig n has been improved to achieve, along with the size reduction, similar to 5 0% target reduction of the fabrication cost. The number of blanket modules has been minimized according to smaller dimensions of the machine and a hig her payload capacity of the blanket Remote Handling tool. A concept without the back plate has been designed and assessed. The blanket module concept with flat separable FW panels has been developed to reduce the fabrication cost and future radioactive waste. (C) 2000 Elsevier Science B.V. All right s reserved.