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Add functionality to avoid redundant cross-section downloads if environment variable is set #46

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Add functionality to avoid redundant cross-section downloads if environment variable is set #46

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16 changes: 10 additions & 6 deletions libra_toolbox/neutronics/vault.py
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Original file line number Diff line number Diff line change
Expand Up @@ -53,7 +53,10 @@ def build_vault_model(
try:
import openmc
import openmc.model
import openmc_data_downloader as odd
import os

if "OPENMC_CROSS_SECTIONS" not in os.environ:
import openmc_data_downloader as odd
Comment on lines +58 to +59
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I don't think the import needs to be optional here

except ModuleNotFoundError:
raise ModuleNotFoundError("openmc and openmc_data_downloader are required.")

Expand Down Expand Up @@ -91,11 +94,12 @@ def build_vault_model(
# Add materials from imported model
materials += added_materials

materials.download_cross_section_data(
libraries=["ENDFB-8.0-NNDC"],
set_OPENMC_CROSS_SECTIONS=True,
particles=["neutron"],
)
if "OPENMC_CROSS_SECTIONS" not in os.environ:
materials.download_cross_section_data(
libraries=["ENDFB-8.0-NNDC"],
set_OPENMC_CROSS_SECTIONS=True,
particles=["neutron"],
)
#
# Definition of the spherical void/blackhole boundary
Surface_95 = openmc.Sphere(x0=0.0, y0=0.0, z0=0.0, r=2500.0, boundary_type="vacuum")
Expand Down
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