InverseBremsstrahlung.H

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/* Copyright 2025 David Grote
 *
 * This file is part of WarpX.
 *
 * License: BSD-3-Clause-LBNL
 */
#ifndef WARPX_PARTICLES_COLLISION_INVERSEBREMSSTRAHLUNG_H_
#define WARPX_PARTICLES_COLLISION_INVERSEBREMSSTRAHLUNG_H_
 
#include "Particles/MultiParticleContainer.H"
#include "Particles/Collision/CollisionBase.H"
#include "Particles/Collision/ScatteringProcess.H"
 
#include <AMReX_Parser.H>
#include <AMReX_REAL.H>
#include <AMReX_Vector.H>
#include <AMReX_GpuContainers.H>
 
#include <memory>
#include <string>
 
class InverseBremsstrahlung final
    : public CollisionBase
{
 
    using ParticleTileType = WarpXParticleContainer::ParticleTileType;
    using ParticleTileDataType = ParticleTileType::ParticleTileDataType;
    using ParticleBins = amrex::DenseBins<ParticleTileDataType>;
    using index_type = ParticleBins::index_type;
 
public:
    InverseBremsstrahlung (std::string const& collision_name, MultiParticleContainer const* mypc);
 
    ~InverseBremsstrahlung () override = default;
 
    InverseBremsstrahlung ( InverseBremsstrahlung const &)             = delete;
    InverseBremsstrahlung& operator= ( InverseBremsstrahlung const & ) = delete;
    InverseBremsstrahlung ( InverseBremsstrahlung&& )                  = delete;
    InverseBremsstrahlung& operator= ( InverseBremsstrahlung&& )       = delete;

    void doCollisions (amrex::Real cur_time, amrex::Real dt, MultiParticleContainer* mypc) override;

    void doInverseBremsstrahlungWithinTile (amrex::Real dt, int lev, amrex::MFIter const& mfi,
                                            WarpXParticleContainer& photons,
                                            WarpXParticleContainer& electrons) const;
 
private:
 
    amrex::ParticleReal m_energy_fraction = 0.05;
 
};
 
#endif // WARPX_PARTICLES_COLLISION_INVERSEBREMSSTRAHLUNG_H