Model card
Reactor 3D
Reduced digital twin — not a first-principles reactor prediction. A hybrid fluid-plasma +
weighted-macro-particle model of a p-¹¹B reactor, run in the browser via the real reactor3d_core kernel.
No net-energy, reactor-performance or engineering-feasibility claim. Fidelity is reduced and labelled.
Geometry is an abstract confinement box — never a fabrication drawing.
Fidelity levels
- 3D-L0 — ideal energy-bin accounting
- 3D-L1 — reduced per-cell 0-D plasma energy balance (default)
- 3D-L2 — trajectory/field-map study (institutional, future)
Physics
- Per-cell fluid densities/temperatures with a radial profile
- Fusion rate R = n_p n_B ⟨σv⟩ (reactivity proxy)
- Poisson fusion events → 3 alphas (simplified or distributed energies)
- Boris pusher in analytic E/B fields; stopping/deposition
- Modular detectors; DirectConvert end-region recovery
Equations
- EQ-P11B-REACTIVITY, EQ-BREMS
- EQ-BORIS (dp/dt = q(E+v×B))
- EQ-ENERGY-LEDGER (residual accounting)
Numerical guards
- Negative density/temperature detection
- NaN/Inf trajectory detection
- Alpha-energy residual tolerance (run flagged if exceeded)
Verification
- Alpha-energy conservation to machine precision
- Boris gyroradius r = mv/(qB) in uniform B
- Seed determinism → reproducible run identity
- Detector plane-intersection accuracy
Unsupported
- Full plasma transport / turbulence
- Real coil/electrode/vacuum engineering
- Validated performance or net-energy
Status
- External validation: Pending (WarpX/Geant4 truth runs, review)
- Version: reactor3d_core 0.1.0
- Reviewer state: unreviewed