Speaker
Description
In the previous version of nuclear data processing code NECP-Atlas reported in the last ND-2019, the code could process the evaluated nuclear data into application libraries of typical formats with the conventional processing methods. NECP-Atlas is under continuous development and verification during the past years. Several new capabilities have been developed in the code.
(1) The code is extended to process the GNDS formatted evaluated nuclear data library. A generalized derived class is designed to be compatible with ENDF-6 and GNDS in nuclear data processing code NECP-Atlas, and the GNDS toolkit is developed in NECP-Atlas to parse and convert GNDS
(2) The module to calculate the thermal scattering law is updated to improve the accuracy. A method named anisotropic displacement parameters (ADP) is implemented to improve the coherent elastic scattering data. The 1-phonon correction method is implemented to improve the inelastic elastic scattering data.
(3) A new module named RESK is developed to generate Doppler-broadened resonance elastic scattering kernel in PENDF format. And then the data is processed into S(α, β) table used by Monte Carlo codes, and multi-group cross sections and scattering matrix used by deterministic based codes.
(4) The capability to generate photon data is newly developed. The code not only can provide the prompt parts of neutron-induced gamma production, but it can also generate the decayed gamma which is produced by decay of fission products.
(5) The capability to calculate neutron, electron, photon displacement cross section is newly developed. For the displacement damage model, apart from traditional NRT model, state-of-the-art ARC model is applied. Accuracy MOTT cross section is used as the electron different scattering cross section to improve the accuracy.