3D Monte-Carlo model to study the transport of hot electrons in the context of inertial confinement fusion. Part I

Tentori A.; Colaïtis A.; Batani D.

doi:10.1063/5.0103631

Volume 7 Issue 6

Nov. 2022

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Tentori A., Colaïtis A., Batani D.. 3D Monte-Carlo model to study the transport of hot electrons in the context of inertial confinement fusion. Part I[J]. Matter and Radiation at Extremes, 2022, 7(6): 065902. doi: 10.1063/5.0103631

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Tentori A., Colaïtis A., Batani D.. 3D Monte-Carlo model to study the transport of hot electrons in the context of inertial confinement fusion. Part I[J]. Matter and Radiation at Extremes, 2022, 7(6): 065902. doi: 10.1063/5.0103631

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3D Monte-Carlo model to study the transport of hot electrons in the context of inertial confinement fusion. Part I

doi: 10.1063/5.0103631

Centre Lasers Intenses et Applications, CELIA, UMR 5107, Université Bordeaux CEA-CNRS, F-33405 Talence, France

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Corresponding author: a)Author to whom correspondence should be addressed: alessandro.tentori@u-bordeaux.fr and alessandro.tentori@mail.polimi.it
Received Date: 2022-06-16
Accepted Date: 2022-10-12

Available Online: 2022-11-01

Publish Date: 2022-11-01

Abstract

Abstract

We describe the development of a 3D Monte-Carlo model to study hot-electron transport in ionized or partially ionized targets, considering regimes typical of inertial confinement fusion. Electron collisions are modeled using a mixed simulation algorithm that considers both soft and hard scattering phenomena. Soft collisions are modeled according to multiple-scattering theories, i.e., considering the global effects of the scattering centers on the primary particle. Hard collisions are simulated by considering a two-body interaction between an electron and a plasma particle. Appropriate differential cross sections are adopted to correctly model scattering in ionized or partially ionized targets. In particular, an analytical form of the differential cross section that describes a collision between an electron and the nucleus of a partially ionized atom in a plasma is proposed. The loss of energy is treated according to the continuous slowing down approximation in a plasma stopping power theory. Validation against Geant4 is presented. The code will be implemented as a module in 3D hydrodynamic codes, providing a basis for the development of robust shock ignition schemes and allowing more precise interpretations of current experiments in planar or spherical geometries.

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References(75)

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