Neutronic Analysis

Neutronic analysis High-Fidelity neutron flux simulation for nuclear systems

At LTCalcoli, our Neutronic Analysis services provide advanced numerical simulation of neutron behavior in nuclear environments, supporting both fusion and fission applications. Leveraging Monte Carlo and other state-of-the-art neutronic analysis techniques, we deliver deep insights into neutron flux distribution, energy deposition, radiation effects, and neutron multiplication all critical factors in system design and component qualification.

What Is Neutronic Analysis?

Neutronic analysis (also known as neutron transport analysis) involves simulating the motion and interactions of neutrons with materials to predict neutron behavior in complex geometries. This includes the spatial distribution of neutrons, their energy spectrum, and the resultant effects on structures and systems. Accurate neutronic analysis is essential in nuclear engineering to evaluate reactor physics phenomena, safety margins, shielding performance, and activation levels. Numerical neutronic models solve neutron transport or diffusion equations to estimate flux fields over time and space, enabling detailed performance and safety evaluations.

Key Outputs of LTCalcoli’s Neutronic Analysis Services

Using effective neutron source definitions and geometric models, our neutron simulation workflows allow us to extract key parameters such as:
• Neutron flux spectrum and intensity – energy-resolved neutron population data for engineering assessment.
• Spatial neutron flux distribution maps – essential for design and verification of shielding and component exposure.
• Secondary radiation and activation products – insights into material activation and long-term radiological behavior.
• Dissipated energy and heat deposition – critical data for coupled thermal and structural simulations.
• Neutron multiplication and reactivity trends – fundamental for core design and safety evaluation.

These results are often used as input data for thermal, structural, and thermo-mechanical simulations, enabling fully integrated multi-physics assessments throughout the engineering lifecycle.

Why Neutronic Analysis Matters

In nuclear applications such as fusion reactors (including ITER diagnostic systems) and fission systems, neutron interactions define performance limits, safety margins, and material lifetime. Neutronic analysis enables:
• Design optimization of reactor cores and shielding systems by quantifying neutron flux and dose rates.
• Radiation damage assessment and material qualification through damage metrics like DPA (Displacements Per Atom).
• Calibration campaigns and diagnostic planning by simulating neutron behavior and detector responses.
• Support for component qualification and regulatory compliance through rigorous simulation reporting.

Integrated Neutronic and Multi-Physics Approaches

LTCalcoli’s neutronic analysis workflows are designed to integrate seamlessly with other engineering domains. For example, neutron flux and energy deposition profiles from neutronic simulations can be transferred directly to thermal and structural finite element models, enabling coupled analyses that capture radiation-induced heating and its impact on mechanical performance. This multi-physics integration ensures that design decisions are informed by the full spectrum of physical phenomena present in operational environments.

Applications Across Nuclear Engineering Sectors

Our neutronic analysis services support a wide range of nuclear engineering products, including:
• Fusion reactor design and diagnostics, where neutron flux impacts diagnostics, materials, and blanket systems.
• Fission reactor core analysis and safety verification, including neutron transport modelling and shielding design.
• Material irradiation studies for advanced structural materials and radiation-resistant components.
• Research & Development (R&D) environments where accurate neutron behavior prediction accelerates innovation in reactor technologies.

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