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56 lines
1.6 KiB
Python
56 lines
1.6 KiB
Python
"""Test one-group cross section generation"""
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from pathlib import Path
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import numpy as np
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import pytest
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import openmc
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from openmc.deplete import MicroXS
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from tests.regression_tests import config
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CHAIN_FILE = Path(__file__).parents[2] / "chain_simple.xml"
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@pytest.fixture(scope="module")
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def model():
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fuel = openmc.Material(name="uo2")
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fuel.add_element("U", 1, percent_type="ao", enrichment=4.25)
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fuel.add_element("O", 2)
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fuel.set_density("g/cc", 10.4)
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clad = openmc.Material(name="clad")
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clad.add_element("Zr", 1)
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clad.set_density("g/cc", 6)
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water = openmc.Material(name="water")
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water.add_element("O", 1)
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water.add_element("H", 2)
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water.set_density("g/cc", 1.0)
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water.add_s_alpha_beta("c_H_in_H2O")
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radii = [0.42, 0.45]
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fuel.volume = np.pi * radii[0] ** 2
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materials = openmc.Materials([fuel, clad, water])
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pin_surfaces = [openmc.ZCylinder(r=r) for r in radii]
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pin_univ = openmc.model.pin(pin_surfaces, materials)
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bound_box = openmc.rectangular_prism(1.24, 1.24, boundary_type="reflective")
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root_cell = openmc.Cell(fill=pin_univ, region=bound_box)
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geometry = openmc.Geometry([root_cell])
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settings = openmc.Settings()
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settings.particles = 1000
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settings.inactive = 10
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settings.batches = 50
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return openmc.Model(geometry, materials, settings)
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def test_from_model(model):
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test_xs = MicroXS.from_model(model, model.materials[0], CHAIN_FILE)
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if config['update']:
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test_xs.to_csv('test_reference.csv')
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ref_xs = MicroXS.from_csv('test_reference.csv')
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np.testing.assert_allclose(test_xs, ref_xs, rtol=1e-11)
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