Abstract
The capability to generate multi-group shielding library is developed in the nuclear data processing code NECP-Atlas. To make the code suitable for the applications in different types of reactors, several improvements are made in the code, such as the resonance self-shielding method and energy-group structure optimization. The hyperfine group method is applied to perform resonance self-shielding calculations for different configurations. The energy-group structure optimization method is developed based on the contributon theory to enhance the calculation accuracy of the thermal neutron flux and photon flux. The accuracy of the newly developed capability is verified with the reference results calculated using BUGLE-B7 libraries. Two libraries with optimized neutron energy-group structures of 47 groups and 60 groups are obtained based on the contributon theory. Numerical results show that the thermal neutron flux and photon flux calculated based on the two libraries are greatly improved.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
