Tritium Safeguards
Tritium is accounted for and physically secured, but alone it cannot produce a nuclear yield — the fissile pathway is still absent.
Tritium is the one material in the fusion fuel cycle with sensitivity beyond ordinary radiological concern, because of its role in other nuclear contexts. Kronos addresses this directly: tritium is subject to strict material accounting and physical security. But it is important to be precise — tritium is not fissile and cannot, by itself, produce a nuclear yield.
How tritium is safeguarded
- Material accounting: inventory tracked precisely through the closed fuel cycle.
- Physical security: controlled access to tritium storage and processing.
- Closed loop: tritium is bred, burned, and recovered on site, minimizing transfers.
- Monitoring: continuous detection ties inventory to measured flows.
The decisive context is that the plant has no fissile material. Weapons require a fissile core; tritium can be a supporting material in some devices but is not itself a nuclear explosive and cannot substitute for fissile fuel. Safeguarding tritium is therefore a matter of responsible accounting and security, not a gap in the proliferation-resistance case.
Right-sized to the material
Kronos applies safeguards proportionate to tritium's actual sensitivity: rigorous, but within a fuel cycle that keeps the material contained and on site. The breeder's closed breeding-and-burning loop and the burner's minimal tritium reliance both reduce the exposure. See proliferation resistance and tritium inventory.
Tritium is secured because it deserves care, not because it opens a fissile pathway — there is none to open.