63Cu(n,γ) cross section measurement with DANCE for PARADIGM

The PARallel Approach of Differential and InteGral Measurements Project (PARADIGM) is an Laboratory Directed Research and Development (LDRD) funded project design to increase the accuracy and reduce the uncertainties of actinide nuclear data at the intermediate neutron energies (1-600 keV). It com- bines integral and differential experiments with theory. Critical Assembly design options and materials have been selected for consideration in a Machine Learning (ML) exercise to be measured for this project. The 63Cu(n,γ) cross section was selected in this process to be measured with the Detector for Advanced Neutron Capture Experiments (DANCE) at LANSCE (LANL). DANCE is a calorimeter composed by 160 BaF2 crystals used to measure neutron-induced capture reac- tions. The experiment was performed in 2015 as a part of the 65Cu(n,γ) cross section measurement [1] to characterize the background due to impurities in the 65Cu sample. The 63Cu(n,γ) data then measured are now being analyzed to extract the cross section for PARADIGM. The experiment and data analysis will be here presented and discussed.

References

[1] C. Prokop et al., Phys. Rev. C 99, 055809 (2019). DOI: 10.1103/PhysRevC.99.055809.