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Conference Spotlight
2026 ANS Annual Conference
May 31–June 3, 2026
Denver, CO|Sheraton Denver
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DOE announces NEPA exclusion for advanced reactors
The Department of Energy has announced that it is establishing a categorical exclusion for the application of National Environmental Policy Act (NEPA) procedures to the authorization, siting, construction, operation, reauthorization, and decommissioning of advanced nuclear reactors.
According to the DOE, this significant change, which goes into effect today, “is based on the experience of DOE and other federal agencies, current technologies, regulatory requirements, and accepted industry practice.”
Nuclear Criticality Safety Division Topical Meeting (NCSD 2022)
Technical Session
Wednesday, June 15, 2022|1:00–2:45PM PDT|Laguna A
Session Chairs:
Mark Neeley (PNNL)
David P. Heinrichs (LLNL)
Session Organizer:
Theresa E. Cutler
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Applicability of ORCEF UF4/CF2 Experiments to Validation of 30-Inch UF6 Cylinders
W.J. Marshall (ORNL), T.M. Greene (ORNL)
Paper
Plutonium Mass Equivalencies for Fissile Isotopes of Am, Cf, and Cm
Analysis of SCALE Criticality and Sensitivity Calculations for Reflected HEU Cylinders
A.M. Shaw (ORNL), W.J. Marshall (ORNL)
Correlation Calculations for the Russian Pu Metal Fast Experiments
Michael Branco-Katcher (LLNL), Daniel Siefman (LLNL), Catherine Percher (LLNL), David Heinrichs (LLNL), Todd S. Palmer (Oregon State)
Sensitivity Coefficients Calculated for the Prompt Neutron Decay Constant at or near Delayed Critical
N. Kleedtke (LANL), J. Hutchinson (LANL), M. Hua (LANL), M. Rising (LANL)
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