Fusion Reactor Flux Mode

Within the universe of the Forgotten series, Flux mode is a safety-critical condition in which the fusion plasma becomes unstable, causing energy output to oscillate unpredictably. Magnetic containment fields strain to compensate, and if balance isn’t restored quickly, the reactor risks:

Rapid shifts in neutron flux (dangerous for shielding and cooling systems)

Magnetic field instability in a tokamak or stellarator containment system

Helium ash accumulation or fuel imbalance (common issues in fusion cores)

Thermal runaway in superconducting coils used for magnetic confinement