Machine Assembly and Fit

The compact envelope demands that magnets, vessel, blanket, and center stack be assembled in a sequence where each part fits within tight tolerances.

Building inward and outward

Hyperion's compactness makes assembly a design constraint in itself. The center stack, toroidal-field coils, vacuum vessel, blanket modules, divertor, and poloidal-field coils must go together in an order that respects their nesting: some parts, once installed, block access to others. The assembly sequence is planned alongside the machine design so that everything fits and can later be maintained.

Tolerances and alignment

Magnetic field quality depends on the coils sitting where the design places them; small misalignments distort the field and can degrade confinement or stability. In a compact machine the tolerances are tight and the room to adjust is small. Assembly must therefore hold precise alignment of the center stack and coils while leaving the defined access paths for remote maintenance open.

Assembly meets maintainability

Because components like the center post and blanket modules will be replaced during operation, the assembly scheme and the maintenance scheme are the same problem viewed twice: how a module goes in the first time is how it must come out and go back later. Designing the fit so first assembly and later module exchange both work, within the compact envelope and the port layout, is part of the integrated design-and-simulation effort ahead of construction in Q2 2027.

• Nested subsystems set a required assembly order
• Tight tolerances on coil and center-stack alignment
• First assembly and later module exchange are one problem

This page describes a design and simulation study, not a built machine. Construction begins Q2 2027; first-of-a-kind first tritium is targeted near 2030.