Showing 19 results for Author: Jordan D. McDonnell
Sep, 2026
ORNL Report
This technical memorandum compiles the contributions presented at the 2026 R-Matrix Workshop on Methods and Applications, held July 13–17, 2026, at Oak Ridge National Laboratory. The workshop brought together researchers working in phenomenological R-matrix theory, experimental nuclear physics, nuclear-data evaluation, uncertainty quantification, and computational methods,…
Sep, 2026
Conference Paper
Aug, 2026
Journal
The ENDF/B-VIII.1 library is the newest recommended evaluated nuclear data file by the Cross Section Evaluation Working Group (CSEWG) for use in nuclear science and technology applications, and incorporates advances made in the six years since the release of ENDF/B-VIII.0. Among key advances made are that the 239Pu file was reevaluated by a joint international effort and t…
Jun, 2026
Conference Paper
Mar, 2026
Conference Paper
Jul, 2025
Journal
Porosity in nuclear-grade graphite significantly influences its low-energy neutron scattering, yet its effect on underlying phonon properties remains debated. This work integrates inelastic and small-angle neutron scattering (INS/SANS) experiments, advanced atomistic simulations with a novel machine-learned potential (DeepMD), total cross-section measurements, and neutroni…