On the design features and lay-out of TEXTOR

Attention is given to the basic design characteristics and layout of the TEXTOR device, planned for operation in 1980. The plasma cross-section and plasma parameters are designed to yield a distinct difference between the boundary region and the plasma core with respect to neutrals distribution and impurity screening and transport. Control of the boundary region will be effected by maintaining heavy-particle energy below the sputtering level or by the use of a divertor. Sixteen coils will generate the toroidal field and limiters governing the plasma position will be decoupled from the coils and vacuum vessel to avoid misalignment caused by thermal and mechanical phenomena. The first wall and the limiters will be temperature controlled from 20-600 C. Safety, reference, and main limiters will be distributed along the major circumference. The outer vacuum vessel will be composed of 6 rigid and 6 bellow sections, its temperature will be controlled from 20-400 C.