Breeder Tritium Campaign Workflow

A breeder campaign chains shots and tracks tritium and helium-3 production accounting as durable, auditable state across the run.

A campaign is more than shots

The breeder (Hyperion) is a D-T spherical tokamak whose products include a tritium class near 4 kg/yr, helium-3 near 1.97 kg/yr, and 14 MeV neutrons. A tritium campaign orchestrates a sequence of shots while maintaining a running, auditable inventory model of production and breeding performance. The tritium breeding ratio is treated as a design lever explored across 1.1, 1.5, and 1.8 rather than a single fixed value.

Accounting as durable state

# per-shot rollup into campaign inventory (design-and-simulation accounting)
campaign.inventory.tritium_kg     += shot.bred_tritium_estimate
campaign.inventory.helium3_kg     += shot.helium3_estimate
campaign.metrics.record(shot_id, TBR_setting=shot.tbr_lever)   # 1.1 | 1.5 | 1.8
# every update is an event; inventory is rebuildable by replay

TBR as a swept lever

• The campaign plan tags each shot with the TBR design setting under study (1.1 / 1.5 / 1.8).
• Orchestration keeps shots at one setting grouped so results are comparable.
• Inventory projections are simulation estimates, not measured yields; the machine is not built.

Coordination with the scheduler

Campaign shots are submitted to the scheduler as P2 plans; a safety event preempts them and the campaign resumes from its checkpoint afterward, with inventory accounting intact because it is rebuilt from the event log. Each shot runs on the shot state machine.

Honest framing

All production figures here are design targets and simulation outputs. Breeder construction begins Q2 2027 with FOAK first tritium targeted around 2030; there is no net-gain claim before then. The workflow exists now to validate the accounting, lineage, and reproducibility discipline against the digital twin so it is trustworthy when real material is eventually produced.