S40 — Tritium inventory + DIR sensitivity

S40: Tritium inventory + DIR sensitivity. Tier-1 · reduced-order, part of the Kronos MetroVolt 81-analysis validation record.

Register ID

S40

Campaign

Paper 3 — Fuel, Magnets & Shield

Status

Tier-1 · reduced-order

S40 concerns the staged D–³He fuel cycle — reaction products, ³He mass balance, and neutronicity along the fuel schedule.

This is a register summary of a deposited analysis; its title and notes quote the deposit as-run, so parameters here may reflect the pre-Mode-D basis where they differ — all operating claims cite the frozen Mode-D point (ratified 24 July 2026). Full input decks, scripts, and output data for every analysis S01–S81 are released openly under CC BY 4.0.