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Merge pull request #1997 from eepeterson/energy_filter_from_group

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adding helper method for EnergyFilter creation
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Paul Romano 2022-03-11 09:28:38 -06:00 • committed by GitHub
commit 2a95e09ad7
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2 changed files with 20 additions and 0 deletions
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14
openmc/filter.py
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@ -1324,6 +1324,20 @@ class EnergyFilter(RealFilter):
cv.check_greater_than('filter value', v0, 0., equality=True)
cv.check_greater_than('filter value', v1, 0., equality=True)
@classmethod
def from_group_structure(cls, group_structure):
"""Construct an EnergyFilter instance from a standard group structure.
Parameters
----------
group_structure : str
Name of the group structure. Must be a valid key of
openmc.mgxs.GROUP_STRUCTURES dictionary.
"""
return cls(openmc.mgxs.GROUP_STRUCTURES[group_structure.upper()])
class EnergyoutFilter(EnergyFilter):
"""Bins tally events based on outgoing particle energy.

6
tests/unit_tests/test_filters.py
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@ -240,3 +240,9 @@ def test_first_moment(run_in_tmpdir, box_model):
assert first_score(sph_scat_tally) == scatter
assert first_score(sph_flux_tally) == approx(flux)
assert first_score(zernike_tally) == approx(scatter)
def test_energy():
f = openmc.EnergyFilter.from_group_structure('CCFE-709')
assert f.bins.shape == (709, 2)
assert len(f.values) == 710