Fast model of energetic particles transport

Jean-Luc Feugeas

CELIA, Talence

A fast kinetic model for collisional transport of energetic particles will be presented. Derived from the Fokker-Planck equation, it involves an angular closure in the phase space leading to a set of hyperbolic equations for the moments of the distribution function evolving in time, space and energy. This method, suitable for hydrodynamic computations scales, provides an alternative to full kinetic resolution or to large, complex and time consuming PIC, Monte Carlo or Hybrid codes. This model is adapted and used to simulate the electron or ion transport for Inertial Confinement Fusion (ICF), and the dose deposition for radiation therapy of cancers.

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