Esempio n. 1
0
def test_alara_responses_output_zone():
    # test decay_heat
    response = ["decay_heat", "specific_activity"]
    exp_response_code = """output zone
      total_heat
      specific_activity
end"""
    response_code = responses_output_zone(response)
    assert_equal(response_code, exp_response_code)
    # wrong nuc option raise test
    assert_raises(ValueError, responses_output_zone, "test")
Esempio n. 2
0
File: r2s.py Progetto: gonuke/pyne
def irradiation_setup(flux_mesh,
                      cell_mats,
                      cell_fracs,
                      alara_params,
                      tally_num=4,
                      num_rays=10,
                      grid=False,
                      flux_tag="n_flux",
                      fluxin="alara_fluxin",
                      reverse=False,
                      alara_inp="alara_inp",
                      alara_matlib="alara_matlib",
                      output_mesh="r2s_step1.h5m",
                      output_material=False,
                      decay_times=None,
                      sub_voxel=False,
                      responses=None,
                      wdr_file=None):
    """This function is used to setup the irradiation inputs after the first
    R2S transport step.

    Parameters
    ----------
    flux_mesh : PyNE Meshtal object, Mesh object, or str
        The source of the neutron flux information. This can be a PyNE Meshtal
        object, a pyne Mesh object, or the filename an MCNP meshtal file, or
        the filename of an unstructured mesh tagged with fluxes.
    cell_mats : dict
        Maps geometry cell numbers to PyNE Material objects.
    cell_fracs : record array
        The output of dagmc.discretize_geom().
    alara_params : str
        The ALARA input blocks specifying everything except the geometry
        and materials. This can either be passed as string or as a file name.
    tally_num : int
        The MCNP FMESH4 tally number of the neutron flux tally within the
        meshtal file.
    num_rays : int, optional
        The number of rays to fire down a mesh row for geometry discretization.
        This number must be a perfect square if grid=True.
    grid : bool, optional
        The if False, geometry discretization will be done with randomly fired
        rays. If true, a grid of sqrt(num_rays) x sqrt(num_rays) rays is used
        for each mesh row.
    flux_tag : str, optional
        The mesh tag for the neutron flux.
    fluxin : str, optional
        The name of the ALARA fluxin file to be created.
    reverse : bool, optional
        If True the fluxes in the fluxin file will be printed in the reverse
        order of how they appear within the flux vector tag. Since MCNP and
        the Meshtal class order fluxes from low energy to high energy, this
        option should only be true if the transmutation data being used is
        ordered from high energy to low energy.
    alara_inp : str, optional
        The name of the ALARA input file to be created.
    alara_matlib : str, optional
        The name of the alara_matlib file to be created.
    output_mesh : str, optional
        A mesh containing all the fluxes and materials used for irradiation
        setup.
    output_material : bool, optional
        If true, output mesh will have materials as determined by
        dagmc.discretize_geom()
    decay_times: list
        List of the decay times. If no decay times given, use '1 s'.
    sub_voxel : bool, optional
        If true, sub-voxel r2s work flow  will be used.
    responses : list of str, optional
        The list of requested responses.
    wdr_file : str
        Path to the wdr file.
    """

    m = resolve_mesh(flux_mesh, tally_num, flux_tag, output_material)

    if output_material:
        m.cell_fracs_to_mats(cell_fracs, cell_mats)

    mesh_to_fluxin(m, flux_tag, fluxin, reverse, sub_voxel, cell_fracs,
                   cell_mats)
    record_to_geom(m,
                   cell_fracs,
                   cell_mats,
                   alara_inp,
                   alara_matlib,
                   sub_voxel=sub_voxel)

    # write decay times into alara_inp
    if decay_times is None:
        decay_times = ['1 s']
    decay_str = 'cooling\n'
    for dc in decay_times:
        decay_str = ''.join([decay_str, '    ', dc, '\n'])
    decay_str = ''.join([decay_str, 'end\n'])
    with open(alara_inp, 'a') as f:
        f.write(decay_str)

    if isfile(alara_params):
        with open(alara_params, 'r') as f:
            alara_params = f.read()

    with open(alara_inp, 'a') as f:
        f.write("\n" + alara_params)

    # append responses output zone
    with open(alara_inp, 'a') as f:
        f.write(responses_output_zone(responses, wdr_file, alara_params))

    m.write_hdf5(output_mesh)