What question did this study set out to answer?

The aim is to develop and validate a neutron-photon coupled calculation method for advanced reactors, focusing on accurate power distribution analysis.

February 28, 2026Nuclear Engineering and TechnologyOpen Access

Development and Verification of Neutron-photon Coupling Calculation Based on VINUS

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The aim is to develop and validate a neutron-photon coupled calculation method for advanced reactors, focusing on accurate power distribution analysis.
Developed a neutron-photon coupled calculation module within the VINUS code.
Integrated neutron critical calculation, photon source generation, and photon fixed-source computation.
Validated the methodology against benchmarks RBEC-M and ZPPR-15D for structured meshes and TOPAZ-II for unstructured meshes.
VINUS demonstrates good agreement with reference solutions or experimental values.
The smallest errors in coupled calculations occur in the fuel region.
Error magnitudes in breeding/moderator zones are influenced by anisotropic scattering and flux gradients.
Photon heating accounts for approximately 10% of total reactor power.

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Implication

Develops a neutron-photon coupled calculation method, improves VINUS, and validates power distribution analysis in advanced reactors, indicating significant photon heating effects.

Cite This Study

Li et al. (2026) studied this question.

synapsesocial.com/papers/69a287690a974eb0d3c03287 https://doi.org/10.1016/j.net.2026.104228

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Implication

Develops a neutron-photon coupled calculation method, improves VINUS, and validates power distribution analysis in advanced reactors, indicating significant photon heating effects.

Development and Verification of Neutron-photon Coupling Calculation Based on VINUS

Key Points

Discussion

Implication

Cite This Study

Development and Verification of Neutron-photon Coupling Calculation Based on VINUS

Key Points

Discussion

Implication

Cite This Study

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