Neutronics Analysis
Supporting safe and efficient design through neutron transport, shielding, and dose evaluation.
Overview
EFAN provides neutronics analysis services for nuclear fusion and nuclear facilities. Using MCNP and TOPMC, we perform neutron transport, shielding, and radiation protection analyses, covering all stages from conceptual design to detailed engineering and safety assessment.
Analytical Methods & Tools
- Neutron transport analysis (Monte Carlo, discrete ordinates method)
- Shielding design analysis (dose rate mapping, activation evaluation)
- Neutron flux distribution and energy spectrum analysis
- Tools used: MCNP, TOPMC
Required Information
- Geometry model (CAD STEP/IGES or MCNP input format)
- Material information (composition, density, compatible with nuclear data library)
- Neutron source conditions (location, spectrum, intensity, operation time)
- Evaluation criteria (shielding dose limits, material irradiation, TBR etc.)
Deliverables
- Neutron flux distribution maps (spatial and spectral)
- Dose rate maps (during operation and after shutdown)
- Activation evaluation reports (lifetime, waste classification)
- Shielding design and TBR (Tritium Breeding Ratio) evaluation reports
Example: Neutronic heating distribution analysis of a tokamak fusion reactor (including shielding and dose evaluation)
Process Workflow
| Step | Description | Deliverables |
|---|---|---|
| 1. Requirement Definition | Clarification of objectives, scope, evaluation criteria, schedule | Requirement specification |
| 2. Model Preparation | CAD conversion, cell definition, material and boundary conditions | MCNP/TOPMC input data |
| 3. Simulation & Verification | Nuclear data verification, boundary condition checks, benchmark comparison | Verification logs, calculation reports |
| 4. Results Evaluation | Flux distribution, dose, TBR evaluation, extraction of design improvements | Evaluation report |
| 5. Review & Handover | Results sharing, traceability documentation | Final report, analysis data |
Contact
For inquiries on neutronics analysis, please provide target system information, material specifications, evaluation criteria, and desired timeline.