Fusion Ignition Research Experiment system integration

The Fusion Ignition Research Experiment, FIRE, is a high field (10T), relatively modest size tokamak intended to investigate the physics of burning plasmas. The design has been altered in size (slightly), increasing the major radius to 2.14 m from its reference baseline dimension of 2.0 m. The general arrangement and details of the components are not expected to change, but there will be some subtle alterations to address the change in the radial build dimensions of a lower aspect ratio device. The configuration still retains sixteen wedged TF coils that surround a free standing central solenoid, a double wall vacuum vessel and internal plasma facing components that are segmented for maintenance through horizontal ports. Large rings located outside the TF coils are used to obtain a load balance between wedging of the intercoil case structure and wedging at the upper/lower inboard comers of the TF coil winding. The magnets are liquid nitrogen cooled and the entire device is surrounded by a thermal enclosure. The double wall vacuum vessel integrates cooling and shielding in a shape that maximizes shielding of ex-vessel components. First wall tiles are attached directly to inboard and outboard vacuum vessel walls. The divertor is designed for a high triangularity, double-null plasma with a short inner null point-to-wall distance and near vertical outer divertor flux line.