The Tritium Fuel Cycle and Breeding Ladder of a Compact Spherical-Tokamak Breeder

The tritium fuel cycle and breeding ladder of a compact spherical-tokamak breeder, developed as an honest mass balance. The per-unit burn rate follows from the fusion power; the net surplus is a confirmed ladder to the advanced-blanket ceiling. A single advanced unit exports tritium; a national-scale supply is a fleet property, stated as such. Direct internal recycling minimizes the standing inventory. Physics only; no economics.