Reaction energetics
3D nuclide and CM-event explorer
Nucleon positions are a schematic inventory. Product arrows use conserving relativistic selected-event four-momenta in the reaction CM, with normalized display length.
Initializing local 3D renderer…
Sequential alpha spectrum
Run the p–¹¹B spectrum sampler to see energy closure and the model spread.
p–¹¹B cross-section reference
Radiation-relevant side channels
| Channel | Why it matters | Current lab treatment |
|---|---|---|
| ¹¹B(p,n)¹¹C | Threshold neutron and radioactive ¹¹C production. | Q value and threshold calculated; no yield model. |
| ¹⁰B impurity reactions | Natural boron contains ¹⁰B; activation/products depend on beam spectrum. | p+¹⁰B energetics only; impurity fraction is not silently assumed. |
| α-induced reactions | Escaping MeV alphas can produce secondary radiation in structures. | Not calculated; requires material-specific evaluated data and transport. |
“Aneutronic” is not “radiation-free.” Device claims require a full energy-dependent neutronics/activation assessment.
Evidence and validity
Nuclear masses
Atomic masses are an AME 2020 slice. Atomic masses may be used directly because electron counts balance in the listed reactions. Marginal Q-value mass uncertainties are propagated with signed net stoichiometry and zero inter-nuclide covariance. The full AME covariance and constants/electron-binding uncertainties are not included.
Alpha spectrum and 3D event
The sampler enforces both ΣEα = Q + Ecm and Σp⃗α = 0 in the reaction CM for exported 3D events, with mass-shell residuals checked. It uses sequential decay through ⁸Be, a 3.03 MeV broad level, a truncated Breit–Wigner, and isotropic decay angles. Exclusive measurements show energy-dependent angular/partial-wave structure; therefore this is a structural demonstrator, not evaluated differential product data or device-frame transport.
What is still excluded
The explorer adds exact uniform-B transport for a selected event, with optional Lorentz boost into the target-rest frame. A spherical display boundary stops tracks at their first resolved crossing; a +X patch counts geometric intercepts. It does not model energy deposition, stopping, electronics, measured efficiency or radiation transport. Direct electricity feasibility belongs in DirectConvert with an explicit energy/current ledger.