Radiant.jl

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Radiant is an open-source package for deterministic transport of ionizing radiation in matter.

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# Radiant

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Radiant is a package that performs deterministic transport of ionizing radiation in matter. It specializes in the coupled transport of photons, electrons, and positrons with kinetic energies between 1 keV and 900 MeV.

## Installation

For [Installation Instructions](https://cbienvenue.github.io/Radiant.jl/quick_start/), please refer to the User's Guide.

## Documentation

For a detailed account of the theory and the features of the Radiant package, please refer to the [Documentation](https://cbienvenue.github.io/Radiant.jl/).

## Overview of Features

### Multigroup Cross-Sections

### Deterministic Solver

- **Solver** : Boltzmann transport equation | Boltzmann Fokker-Planck equation | Coupled transport of particles
- **Medium** : Cartesian geometry in 1D, 2D and 3D | Heterogeneous medium | Boundary conditions: void, periodic and reflective
- **Fixed external sources** : Isotropic volume sources | Monodirectional surface sources
- **Angular discretization** :
  - Discrete ordinates (SN) method
    - Galerkin quadrature method
    - Quadratures : Gauss-Legendre | Gauss-Lobatto | Gauss-Chebychev product | Carlson's level-symmetric | Lebedev
  - Double Spherical Harmonics (DPN) method
  - Discontinuous Galerkin (GN) method
    - Angular meshes: polar-anchored, symmetric
  - Collision Probability (CP) method (1D slab geometry, BTE only)
- **Spatial discretization** : Generalized diamond difference schemes | Generalized discontinuous Galerkin schemes | Adaptive weighted schemes (SN only)
- **Energy discretization** : Multigroup method | Continuous slowing-down discretization (same as spatial)
- **Angular Fokker-Planck discretization** : Moment-preserving | Finite-difference
- **Acceleration methods** : Livolant, Anderson, GMRES, BICGSTAB

## Examples

Examples for the Radiant package can be found in the GitHub repository [Radiant - Examples](https://github.com/CBienvenue/Radiant-Examples).

## Questions and Contributions

For technical support, please post in [Discussion](https://github.com/CBienvenue/Radiant.jl/discussions). Contributions, feature requests, bug reporting, and suggestions are also welcome as [Issue](https://github.com/CBienvenue/Radiant.jl/issues).

Radiant.jl

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