make_beam_grid Subroutine

  1. fidasim.f90
  2. libfida
  3. make_beam_grid

public subroutine make_beam_grid()

Makes [[libfida:beam_grid] from user defined inputs

Arguments

None

Calls

proc~~make_beam_grid~~CallsGraph proc~make_beam_grid make_beam_grid proc~tb_zyx tb_zyx proc~make_beam_grid->proc~tb_zyx proc~in_plasma in_plasma proc~make_beam_grid->proc~in_plasma proc~xyz_to_uvw xyz_to_uvw proc~in_plasma->proc~xyz_to_uvw interface~interpol_coeff interpol_coeff proc~in_plasma->interface~interpol_coeff proc~cyl_to_uvw cyl_to_uvw proc~in_plasma->proc~cyl_to_uvw

Called by

proc~~make_beam_grid~~CalledByGraph proc~make_beam_grid make_beam_grid program~fidasim fidasim program~fidasim->proc~make_beam_grid

Contents

Source Code

make_beam_grid

Source Code

subroutine make_beam_grid
    !+ Makes [[libfida:beam_grid] from user defined inputs
    integer(Int32) :: i, j, k, n
    real(Float64) :: dx, dy, dz, ri(3)
    logical :: inp

    allocate(beam_grid%xc(beam_grid%nx),  &
             beam_grid%yc(beam_grid%ny),  &
             beam_grid%zc(beam_grid%nz))

    dx = (beam_grid%xmax - beam_grid%xmin)/beam_grid%nx
    dy = (beam_grid%ymax - beam_grid%ymin)/beam_grid%ny
    dz = (beam_grid%zmax - beam_grid%zmin)/beam_grid%nz

    do i=1, beam_grid%nx
        beam_grid%xc(i) = beam_grid%xmin + (i-0.5)*dx
    enddo
    do i=1, beam_grid%ny
        beam_grid%yc(i) = beam_grid%ymin + (i-0.5)*dy
    enddo
    do i=1, beam_grid%nz
        beam_grid%zc(i) = beam_grid%zmin + (i-0.5)*dz
    enddo

    beam_grid%dr(1) = abs(beam_grid%xc(2)-beam_grid%xc(1))
    beam_grid%dr(2) = abs(beam_grid%yc(2)-beam_grid%yc(1))
    beam_grid%dr(3) = abs(beam_grid%zc(2)-beam_grid%zc(1))

    beam_grid%lwh(1) = abs(beam_grid%xc(beam_grid%nx) - beam_grid%xc(1)) + beam_grid%dr(1)
    beam_grid%lwh(2) = abs(beam_grid%yc(beam_grid%ny) - beam_grid%yc(1)) + beam_grid%dr(2)
    beam_grid%lwh(3) = abs(beam_grid%zc(beam_grid%nz) - beam_grid%zc(1)) + beam_grid%dr(3)

    beam_grid%volume = beam_grid%lwh(1)*beam_grid%lwh(2)*beam_grid%lwh(3)

    beam_grid%center(1) = (minval(beam_grid%xc) - 0.5*beam_grid%dr(1)) + 0.5*beam_grid%lwh(1)
    beam_grid%center(2) = (minval(beam_grid%yc) - 0.5*beam_grid%dr(2)) + 0.5*beam_grid%lwh(2)
    beam_grid%center(3) = (minval(beam_grid%zc) - 0.5*beam_grid%dr(3)) + 0.5*beam_grid%lwh(3)

    beam_grid%drmin  = minval(beam_grid%dr)
    beam_grid%dv     = beam_grid%dr(1)*beam_grid%dr(2)*beam_grid%dr(3)
    beam_grid%ntrack = (beam_grid%nx+beam_grid%ny+beam_grid%nz)*inputs%max_cell_splits
    beam_grid%ngrid  = beam_grid%nx*beam_grid%ny*beam_grid%nz

    beam_grid%dims(1) = beam_grid%nx
    beam_grid%dims(2) = beam_grid%ny
    beam_grid%dims(3) = beam_grid%nz

    call tb_zyx(beam_grid%alpha,beam_grid%beta,beam_grid%gamma, &
                beam_grid%basis, beam_grid%inv_basis)

    !! Check if beam grid is in the plasma
    n = 0
    do k=1,beam_grid%nz
        do j=1,beam_grid%ny
            do i=1,beam_grid%nx
                ri = [beam_grid%xc(i),beam_grid%yc(j), beam_grid%zc(k)]
                call in_plasma(ri, inp)
                if(inp) n = n + 1
            enddo
        enddo
    enddo

    if(inputs%verbose.ge.1) then
        write(*,'(a)') "---- Beam grid settings ----"
        write(*,'(T2,"Nx: ", i3)') beam_grid%nx
        write(*,'(T2,"Ny: ", i3)') beam_grid%ny
        write(*,'(T2,"Nz: ", i3)') beam_grid%nz
        write(*,'(T2,"dV: ", f5.2," [cm^3]")') beam_grid%dv
        write(*,'(T2,"alpha: ",f5.2," [rad]")') beam_grid%alpha
        write(*,'(T2,"beta:  ",f5.2," [rad]")') beam_grid%beta
        write(*,'(T2,"gamma: ",f5.2," [rad]")') beam_grid%gamma
        write(*,'(T2,"origin: [",f7.2,",",f7.2,",",f7.2,"] [cm]")') beam_grid%origin
        write(*,'(T2,"Number of cells in plasma: ",i8)') n
        write(*,*) ''
    endif

    if(n.le.(0.1*beam_grid%ngrid)) then
        if(inputs%verbose.ge.0) then
            write(*,'(a)') "MAKE_BEAM_GRID: Beam grid definition is poorly defined. &
                            &Less than 10% of the beam grid cells fall within the plasma."
        endif
        stop
    endif

end subroutine make_beam_grid