dcx Subroutine

  1. fidasim.f90
  2. libfida
  3. dcx

public subroutine dcx()

Calculates Direct Charge Exchange (DCX) neutral density and spectra

Arguments

None

Calls

proc~~dcx~~CallsGraph proc~dcx dcx proc~mc_beam_grid mc_beam_grid proc~dcx->proc~mc_beam_grid proc~mc_halo mc_halo proc~dcx->proc~mc_halo proc~init_neutral_population init_neutral_population proc~dcx->proc~init_neutral_population proc~ind2sub ind2sub proc~dcx->proc~ind2sub proc~get_nlaunch get_nlaunch proc~dcx->proc~get_nlaunch proc~get_plasma get_plasma proc~dcx->proc~get_plasma proc~store_photons store_photons proc~dcx->proc~store_photons proc~store_neutrals store_neutrals proc~dcx->proc~store_neutrals proc~parallel_merge_reservoirs parallel_merge_reservoirs proc~dcx->proc~parallel_merge_reservoirs proc~store_photon_birth store_photon_birth proc~dcx->proc~store_photon_birth proc~track track proc~dcx->proc~track proc~get_total_cx_rate get_total_cx_rate proc~dcx->proc~get_total_cx_rate proc~colrad colrad proc~dcx->proc~colrad proc~parallel_merge_populations parallel_merge_populations proc~dcx->proc~parallel_merge_populations interface~parallel_sum parallel_sum proc~dcx->interface~parallel_sum interface~randu randu proc~mc_beam_grid->interface~randu interface~randn randn proc~mc_halo->interface~randn proc~get_nlaunch->proc~ind2sub proc~rng_init rng_init proc~get_nlaunch->proc~rng_init interface~randind_cdf randind_cdf proc~get_nlaunch->interface~randind_cdf proc~cumsum cumsum proc~get_nlaunch->proc~cumsum proc~xyz_to_uvw xyz_to_uvw proc~get_plasma->proc~xyz_to_uvw proc~uvw_to_xyz uvw_to_xyz proc~get_plasma->proc~uvw_to_xyz proc~in_plasma in_plasma proc~get_plasma->proc~in_plasma proc~get_position get_position proc~get_plasma->proc~get_position proc~get_passive_grid_indices get_passive_grid_indices proc~store_photons->proc~get_passive_grid_indices proc~store_photons->proc~uvw_to_xyz proc~spectrum spectrum proc~store_photons->proc~spectrum proc~get_indices get_indices proc~store_photons->proc~get_indices proc~get_fields get_fields proc~store_photons->proc~get_fields proc~update_neutrals update_neutrals proc~store_neutrals->proc~update_neutrals proc~parallel_merge_reservoirs->interface~parallel_sum proc~init_reservoir init_reservoir proc~parallel_merge_reservoirs->proc~init_reservoir proc~my_rank my_rank proc~parallel_merge_reservoirs->proc~my_rank proc~merge_reservoirs merge_reservoirs proc~parallel_merge_reservoirs->proc~merge_reservoirs proc~num_ranks num_ranks proc~parallel_merge_reservoirs->proc~num_ranks proc~store_photon_birth->proc~get_passive_grid_indices proc~update_reservoir update_reservoir proc~store_photon_birth->proc~update_reservoir proc~store_photon_birth->proc~get_indices proc~track->proc~get_plasma proc~doppler_stark doppler_stark proc~track->proc~doppler_stark proc~track->proc~in_plasma proc~track->proc~get_indices proc~track->proc~get_fields proc~neutral_cx_rate neutral_cx_rate proc~get_total_cx_rate->proc~neutral_cx_rate proc~get_rate_matrix get_rate_matrix proc~colrad->proc~get_rate_matrix proc~eigen eigen proc~colrad->proc~eigen proc~linsolve linsolve proc~colrad->proc~linsolve proc~parallel_merge_populations->proc~ind2sub proc~parallel_merge_populations->proc~parallel_merge_reservoirs proc~parallel_merge_populations->interface~parallel_sum proc~parallel_sum_i3 parallel_sum_i3 interface~parallel_sum->proc~parallel_sum_i3 proc~parallel_sum_d0 parallel_sum_d0 interface~parallel_sum->proc~parallel_sum_d0 proc~parallel_sum_d1 parallel_sum_d1 interface~parallel_sum->proc~parallel_sum_d1 proc~parallel_sum_d5 parallel_sum_d5 interface~parallel_sum->proc~parallel_sum_d5 proc~parallel_sum_i1 parallel_sum_i1 interface~parallel_sum->proc~parallel_sum_i1 proc~parallel_sum_i0 parallel_sum_i0 interface~parallel_sum->proc~parallel_sum_i0 proc~parallel_sum_i2 parallel_sum_i2 interface~parallel_sum->proc~parallel_sum_i2 proc~parallel_sum_d4 parallel_sum_d4 interface~parallel_sum->proc~parallel_sum_d4 proc~parallel_sum_d3 parallel_sum_d3 interface~parallel_sum->proc~parallel_sum_d3 proc~parallel_sum_d2 parallel_sum_d2 interface~parallel_sum->proc~parallel_sum_d2 proc~xyz_to_cyl xyz_to_cyl proc~get_passive_grid_indices->proc~xyz_to_cyl proc~parallel_sum_i3->proc~parallel_sum_i1 mpi_allreduce mpi_allreduce proc~parallel_sum_i3->mpi_allreduce proc~rng_init->proc~my_rank proc~rng_seed rng_seed proc~rng_init->proc~rng_seed proc~init_reservoir->interface~randu proc~bb_cx_rates bb_cx_rates proc~neutral_cx_rate->proc~bb_cx_rates proc~parallel_sum_d0->mpi_allreduce proc~parallel_sum_d1->proc~parallel_sum_d1 proc~parallel_sum_d1->mpi_allreduce proc~parallel_sum_d5->proc~parallel_sum_d1 proc~parallel_sum_d5->mpi_allreduce proc~parallel_sum_i1->proc~parallel_sum_i1 proc~parallel_sum_i1->mpi_allreduce proc~parallel_sum_i0->mpi_allreduce proc~merge_reservoirs->proc~init_reservoir proc~merge_reservoirs->proc~update_reservoir proc~merge_reservoirs->interface~randu float float proc~merge_reservoirs->float proc~parallel_sum_i2->proc~parallel_sum_i1 proc~parallel_sum_i2->mpi_allreduce proc~update_reservoir->proc~init_reservoir proc~update_reservoir->interface~randu interface~randind randind proc~update_reservoir->interface~randind interface~interpol_coeff interpol_coeff proc~get_rate_matrix->interface~interpol_coeff proc~elmhes elmhes proc~eigen->proc~elmhes proc~balance balance proc~eigen->proc~balance proc~hqr2 hqr2 proc~eigen->proc~hqr2 proc~balback balback proc~eigen->proc~balback proc~elmtrans elmtrans proc~eigen->proc~elmtrans proc~in_plasma->proc~xyz_to_uvw proc~cyl_to_uvw cyl_to_uvw proc~in_plasma->proc~cyl_to_uvw proc~in_plasma->interface~interpol_coeff proc~parallel_sum_d4->proc~parallel_sum_d1 proc~parallel_sum_d4->mpi_allreduce dgetrs dgetrs proc~linsolve->dgetrs proc~matinv matinv proc~linsolve->proc~matinv dgetrf dgetrf proc~linsolve->dgetrf proc~parallel_sum_d3->proc~parallel_sum_d1 proc~parallel_sum_d3->mpi_allreduce proc~cyl_to_xyz cyl_to_xyz proc~get_position->proc~cyl_to_xyz proc~get_fields->proc~xyz_to_uvw proc~get_fields->proc~uvw_to_xyz proc~get_fields->proc~in_plasma proc~get_fields->proc~get_position proc~calc_perp_vectors calc_perp_vectors proc~get_fields->proc~calc_perp_vectors proc~update_neutrals->proc~update_reservoir proc~parallel_sum_d2->proc~parallel_sum_d1 proc~parallel_sum_d2->mpi_allreduce proc~rswap RSWAP proc~elmhes->proc~rswap proc~xyz_to_cyl->proc~xyz_to_uvw proc~uvw_to_cyl uvw_to_cyl proc~xyz_to_cyl->proc~uvw_to_cyl proc~balance->proc~rswap proc~hqrvec hqrvec proc~hqr2->proc~hqrvec proc~lubksb lubksb proc~matinv->proc~lubksb proc~ludcmp ludcmp proc~matinv->proc~ludcmp proc~bb_cx_rates->interface~interpol_coeff proc~balback->proc~rswap proc~cyl_to_xyz->proc~uvw_to_xyz proc~cyl_to_xyz->proc~cyl_to_uvw proc~comdiv Comdiv proc~hqrvec->proc~comdiv proc~outerprod outerprod proc~ludcmp->proc~outerprod proc~swap swap proc~ludcmp->proc~swap

Called by

proc~~dcx~~CalledByGraph proc~dcx dcx program~fidasim fidasim program~fidasim->proc~dcx

Contents

Source Code

dcx

Source Code

subroutine dcx
    !+ Calculates Direct Charge Exchange (DCX) neutral density and spectra
    integer :: ic,i,j,k,ncell,is
    integer(Int64) :: idcx !! counter
    real(Float64), dimension(3) :: ri    !! start position
    real(Float64), dimension(3) :: vihalo
    integer,dimension(3) :: ind
    integer,dimension(3) :: neut_types = [1,2,3]
    !! Determination of the CX probability
    type(LocalProfiles) :: plasma
    real(Float64), dimension(nlevs) :: denn    !!  neutral dens (n=1-4)
    real(Float64), dimension(nlevs) :: rates    !!  CX rates
    !! Collisiional radiative model along track
    real(Float64), dimension(nlevs) :: states  ! Density of n-states
    integer :: ntrack
    type(ParticleTrack), dimension(beam_grid%ntrack) :: tracks  !! Particle tracks
    integer :: jj       !! counter along track
    real(Float64):: tot_denn, photons  !! photon flux
    integer, dimension(beam_grid%ngrid) :: cell_ind
    real(Float64), dimension(beam_grid%nx,beam_grid%ny,beam_grid%nz) :: papprox
    integer(Int32), dimension(beam_grid%nx,beam_grid%ny,beam_grid%nz) :: nlaunch
    real(Float64) :: fi_correction, dcx_dens

    !! Initialized Neutral Population
    call init_neutral_population(neut%dcx)

    papprox=0.d0
    tot_denn=0.d0
    do ic=1,beam_grid%ngrid
        call ind2sub(beam_grid%dims,ic,ind)
        i = ind(1) ; j = ind(2) ; k = ind(3)
        call get_plasma(plasma,ind=ind)
        if(.not.plasma%in_plasma) cycle
        tot_denn = sum(neut%full%dens(:,i,j,k)) + &
                   sum(neut%half%dens(:,i,j,k)) + &
                   sum(neut%third%dens(:,i,j,k))
        papprox(i,j,k)= tot_denn*sum(plasma%deni)
    enddo

    ncell = 0
    do ic=1,beam_grid%ngrid
        call ind2sub(beam_grid%dims,ic,ind)
        i = ind(1) ; j = ind(2) ; k = ind(3)
        if(papprox(i,j,k).gt.0.0) then
            ncell = ncell + 1
            cell_ind(ncell) = ic
        endif
    enddo

    call get_nlaunch(inputs%n_dcx,papprox,nlaunch)

    if(inputs%verbose.ge.1) then
       write(*,'(T6,"# of markers: ",i10)') sum(nlaunch)
    endif
    !$OMP PARALLEL DO schedule(dynamic,1) private(i,j,k,ic,is,idcx,ind,vihalo, &
    !$OMP& ri,tracks,ntrack,rates,denn,states,jj,photons,plasma,fi_correction)
    loop_over_cells: do ic = istart, ncell, istep
        call ind2sub(beam_grid%dims,cell_ind(ic),ind)
        i = ind(1) ; j = ind(2) ; k = ind(3)
        loop_over_species: do is=1, n_thermal !This loop has to come first
            !! Loop over the markers
            loop_over_dcx: do idcx=1, nlaunch(i,j,k)
                !! Calculate ri,vhalo and track
                call mc_beam_grid(ind, ri)
                call get_plasma(plasma, pos=ri)
                call mc_halo(plasma, thermal_mass(is), vihalo)
                call track(ri,vihalo,tracks,ntrack)
                if(ntrack.eq.0) cycle loop_over_dcx

                !! Calculate CX probability
                call get_total_cx_rate(tracks(1)%ind, ri, vihalo, neut_types, rates)
                if(sum(rates).le.0.) cycle loop_over_dcx

                !! Solve collisional radiative model along track
                call get_plasma(plasma,pos=tracks(1)%pos)

                !! Weight CX rates by ion source density
                if(beam_mass.eq.thermal_mass(is)) then
                    states = rates*(plasma%deni(is) + plasma%denf)
                    if(sum(states).eq.0) cycle loop_over_dcx
                    fi_correction = max(plasma%deni(is)/(plasma%deni(is)+plasma%denf),0.d0)
                else
                    states = rates*plasma%deni(is)
                    if(sum(states).eq.0) cycle loop_over_dcx
                    fi_correction = 1.d0
                endif

                loop_along_track: do jj=1,ntrack
                    call get_plasma(plasma,pos=tracks(jj)%pos)
                    if(.not.plasma%in_plasma) exit loop_along_track
                    call colrad(plasma,thermal_mass(is),vihalo,tracks(jj)%time,states,denn,photons)
                    call store_neutrals(tracks(jj)%ind,tracks(jj)%pos,vihalo,dcx_type,denn/nlaunch(i,j,k))

                    photons = fi_correction*photons !! Correct for including fast-ions in states

                    if((photons.gt.0.d0).and.(inputs%calc_dcx.ge.1)) then
                        call store_photons(tracks(jj)%pos,vihalo, thermal_lambda0(is), photons/nlaunch(i,j,k),&
                            &spec%dcx(:,:,:,is),spec%dcxstokes(:,:,:,:,is))
                    endif

                    if((photons.gt.0.d0).and.(inputs%calc_res.ge.1)) then
                        call store_photon_birth(tracks(1)%pos, photons/nlaunch(i,j,k), spatres%dcx)
                    endif
                enddo loop_along_track
            enddo loop_over_dcx
        enddo loop_over_species
    enddo loop_over_cells
    !$OMP END PARALLEL DO

#ifdef _MPI
    !! Combine densities
    call parallel_merge_populations(neut%dcx)
    if(inputs%calc_dcx.ge.1) then
        call parallel_sum(spec%dcx)
    endif
    if(inputs%calc_res.ge.1) then
        do jj=1,spec_chords%nchan
            call parallel_merge_reservoirs(spatres%dcx(jj))
        enddo
    endif
#endif

    dcx_dens = sum(neut%dcx%dens)
    if((dcx_dens.eq.0).or.isnan(dcx_dens)) then
        write(*,*) 'DCX: DCX density is zero or nan: ', dcx_dens
        stop
    endif

end subroutine dcx