A parametric PINN solves the adjoint Fokker-Planck equation and projects runaway electron density time histories in milliseconds, with decay rates that are strongly nonlinear in electric field.
Using a RE decay rate to characterize RE evolution comes with two significant caveats
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A Physics-Constrained Deep Learning Treatment of Runaway Electron Dynamics
A parametric PINN solves the adjoint Fokker-Planck equation and projects runaway electron density time histories in milliseconds, with decay rates that are strongly nonlinear in electric field.