openmc.data.njoy.make_ace_thermal

openmc.data.njoy.make_ace_thermal(filename, filename_thermal, temperatures=None, ace='ace', xsdir=None, output_dir=None, error=0.001, iwt=2, evaluation=None, evaluation_thermal=None, table_name=None, zaids=None, nmix=None, **kwargs)[source]

Generate thermal scattering ACE file from ENDF files

Parameters

  • filename (str) – Path to ENDF neutron sublibrary file

  • filename_thermal (str) – Path to ENDF thermal scattering sublibrary file

  • temperatures (iterable of float, optional) – Temperatures in Kelvin to produce data at. If omitted, data is produced at all temperatures given in the ENDF thermal scattering sublibrary.

  • ace (str, optional) – Path of ACE file to write

  • xsdir (str, optional) – Path of xsdir file to write. Defaults to "xsdir" in the same directory as ace

  • output_dir (str, optional) – Directory to write ace and xsdir files. If not provided, then write output files to current directory. If given, must be a path to a directory.

  • error (float, optional) – Fractional error tolerance for NJOY processing

  • iwt (int) – iwt parameter used in NJOR/ACER card 9

  • evaluation (openmc.data.endf.Evaluation, optional) – If the ENDF neutron sublibrary file contains multiple material evaluations, this argument indicates which evaluation to use.

  • evaluation_thermal (openmc.data.endf.Evaluation, optional) – If the ENDF thermal scattering sublibrary file contains multiple material evaluations, this argument indicates which evaluation to use.

  • table_name (str, optional) – Name to assign to ACE table

  • zaids (list of int, optional) – ZAIDs that the thermal scattering data applies to

  • nmix (int, optional) – Number of atom types in mixed moderator

  • **kwargs – Keyword arguments passed to openmc.data.njoy.run()

Raises

subprocess.CalledProcessError – If the NJOY process returns with a non-zero status