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Three-dimensional shielding calculations for the IFMIF neutron source using a coupled Monte Carlo/Deterministic
Y Chen1, U Fischer, S P Simakov
1Association FZK-Euratom, Forschungszentrum Karlsruhe, Institut für Reaktorsicherheit, P. O. Box 3640, 76021 Karlsruhe, Germany. yxchen@ipp.ac.cn
Radiation Protection Dosimetry
|December 31, 2005
Summary
Shielding calculations for the International Fusion Materials Irradiation Facility (IFMIF) were complex. A new Monte Carlo/Deterministic scheme accurately calculated neutron-photon fluxes and dose rates for large nuclear facilities.
Area of Science:
- Nuclear Engineering
- Computational Physics
- Radiation Shielding
Background:
- Shielding calculations for the International Fusion Materials Irradiation Facility (IFMIF) present significant challenges.
- The complexity arises from the target system geometry and extensive bulk shields.
Purpose of the Study:
- To develop and validate a computational scheme for 3D shielding analyses of complex nuclear facilities.
- To assess neutron-photon fluxes and dose rates in critical areas of the IFMIF.
Main Methods:
- A novel Monte Carlo/Deterministic computational scheme was developed.
- Three-dimensional shielding calculations were performed using this coupled scheme.
Main Results:
- Neutron-photon fluxes and dose rate distributions were calculated for the Test Cell back wall and access/maintenance room.
- Results were compared with previous shielding calculations, demonstrating accuracy.
Conclusions:
- The newly developed coupled Monte Carlo/Deterministic scheme is a valuable tool for 3D shielding analysis.
- This method is effective for complex and large-scale nuclear facilities like IFMIF.