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Clarify that create_fission_neutrons is a surrogate-method default, not forced

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Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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John Tramm 2026-07-17 20:59:48 +00:00
parent f50a5a70da
commit f0448bea17
1 changed files with 4 additions and 3 deletions
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7
openmc/model/model.py
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@ -2695,9 +2695,10 @@ class Model:
attributes of this object (see :meth:`openmc.Settings.update`).
The run mode cannot be set here: ``"material_wise"`` always
takes it from the model, while the ``"stochastic_slab"`` and
``"infinite_medium"`` methods always run in fixed source mode
with ``create_fission_neutrons`` disabled and construct their
own sources. If the resolved settings include a
``"infinite_medium"`` methods always run in fixed source mode.
The surrogate-geometry methods also construct their own
sources and default ``create_fission_neutrons`` to False
(fission treated as capture). If the resolved settings include a
``weight_windows_file`` (e.g., ``"weight_windows.h5"``), the
``"material_wise"`` method loads and applies those weight
windows during the continuous energy generation simulation