Deep Dive: Tritium & Fuel Processing

Kronos keeps a small tritium inventory and recycles fuel tightly — direct internal recovery over 95%, isotope separation, and accountancy — a lighter fuel plant than a D–T machine.

Inventory

Small (no breeding blanket)

Recovery

> 95% single-pass DIR (P4)

Handled

Isotope separation, storage, accountancy

Advantage

Lighter than a D–T fuel plant

The fuel-processing plant handles the deuterium, bred helium-3, and small amounts of tritium that cycle through the reactor — separating isotopes, storing fuel, and accounting for every gram of tritium (a regulated material). How large and complex it is depends heavily on the fuel choice.

Because Kronos runs D–³He with no breeding blanket, its tritium inventory is small — a fraction of what a D–T plant, which must breed and cycle kilograms of tritium, requires. The direct-internal-recovery loop recycles unburned fuel at over 95% single-pass (prediction P4), keeping the working inventory tight and losses low.

A smaller tritium inventory means a lighter containment, licensing, and safety burden — one of the quieter but real advantages of the low-neutron, blanket-free design. See is tritium dangerous?