Notebooks

Notebook-based exploratory workflows are discovered from examples/ at build time.

Notebook	Description
D–³He reactor: density & temperature profile-shape optimization	Optimize the shape of the density and temperature profiles of a D–³He reactor while holding the fusion power fixed at 525 MW, so that the operating point stays below the Greenwald density limit and the Troyon β limit. Fixed machine (given): plasma volume V_p = 150 m³, minor radius a = 1.13 m, plasma current I_p = 7.8 MA, toroidal field B0 = 9.2 T. Operating point (given): volume-average electron density n_avg = 1.3×10²⁰ m⁻³, volume-average temperature T_avg = 70 keV. Free variables (optimized): the profile shapes — the density and temperature peaking factors — and the particle confinement time tau_p ∈ [1, 10] s. The model is built from the project's own relations (fusdb): the parabolic profile generator, the Bosch–Hale D–³He reactivity, the D–³He reaction-rate integral, the thermal pressure / toroidal-β definitions, and the Greenwald / Troyon operational limits.
Reactivity Curves From Registered Relations	This notebook replaces the removed plotting helper with direct calls to the current reactivity relations.
Read ENDF-6 MF=3 Sections with endf	Set source_path to any ENDF-6 file, choose an MT, and run the last cell. The selected MF=3 section is exported as an annotated .yaml file in the same folder as the input file.
Reconcile overview	Loads every reactor.yaml under reactors/, reconciles each one, and renders a single variable-by-reactor table plus the plasma cross-sections. Reactor header is red when reconciliation failed, normal otherwise. Variable cells (a variable is used when it enters the reactor's active relation graph): - green — input, used, value unchanged after reconcile (value). - yellow — input, used, moved within tolerance (input (value)). - red — input, used, moved beyond tolerance (input → value, the culprit input is bold). - transparent + grey value — variable not used. - transparent + normal value — value computed by reconcile. Diagnostics (warnings, errors, failed relations) are printed inline while each reactor is solved.
Relation and Variable Graph From the Current Registries	This notebook inspects RELATIONS and VARIABLES directly, builds a graph with networkx, and writes a rendered artifact without using removed plotting helpers.
Steady-state plasma composition examples	This notebook evaluates steady-state composition for DT, DD, and D-He3 cases using steady_state_plasma_composition(). All available sigmav_* inputs are populated for each case.
Energy Confinement Time From the Current API	This notebook keeps the analytical comparison, but uses direct fusdb objects and focused Reactor.run(...) calls throughout.

Local Usage

1. Install Jupyter if needed: pip install jupyterlab
2. Start Jupyter: python -m jupyter lab
3. Open notebooks from the examples/ folder.