Impact of Maintainability on the International Thermonuclear Experimental Reactor (ITER) Configuration Options*, **

The International Thermonuclear Experimental Reactor (ITER) study was initiated with a definition phase conducted during the summer of 1988. Included in the stated purposes of this phase was the development of a preliminary reactor configuration that incorporates major design features, being selected concurrently, and the establishment of the reactor maintenance approach. This paper documents the results of the configuration development task and includes discussions of conclusions reached and ongoing efforts.