Design integration of the ARIES-I tokamak reactor

The design integration of the fusion-power core (FPC) and the reactor subsystems of the ARIES-I (Advanced Reactor Innovation and Evaluation Study) are summarized. Details such as support of the toroidal-field coils, divertor module access, blanket access, design and support of the RF antennas, and location of the primary vacuum and cryostat vacuum boundaries are considered. The maintenance procedure being considered for ARIES-I is a modular approach. With this type of maintenance, a module consisting of the first-wall, blanket, shield, divertor module, and toroidal-field coil is replaced as a single unit at the end of the module´s life. Rapid replacement of the irradiated FPC components is expected. In-situ blanket submodule repair and replacement schemes addressing the possible failure of the first-wall or blanket before its designed lifetime are described. Replacement of the divertor plate assemblies is simplified by providing a direct-access path through which damaged plates can be removed and new plates installed without interfering with the other FPC components