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Conference Spotlight
2026 ANS Annual Conference
May 31–June 3, 2026
Denver, CO|Sheraton Denver
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Latest News
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|8:00–9:45AM PDT|El Capitan A
Session Chairs:
Kermit A. Bunde (DOE-ID)
Shauntay Coleman (LLNL)
Session Organizer:
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Update of the Nuclear Criticality Slide Rule: Review of the Estimation of the Number of Fissions
Matthieu Duluc (IRSN), Johann Herth (IRSN), Tristan Adatte (IRSN), David P. Heinrichs (LLNL), Soon Kim (LLNL), Doug Bowen (ORNL), Cihangir Celik (ORNL), Mathieu Dupont (ORNL)
Paper
Update of the Nuclear Criticality Slide Rule Calculations: Plutonium Systems – Delayed Fission Gamma
Johann Herth (IRSN), Matthieu Duluc (IRSN), Tristan Adatte (IRSN), Dave Heinrichs (LLNL), Soon Kim (LLNL), Doug Bowen (ORNL), Cihangir Celik (ORNL), Mathieu Dupont (ORNL)
CAAS Replacement in Enduring Facilities
Timothy Jackson (Y-12 National Security Complex), James Yugo (Y-12 National Security Complex), Jeff Goodman (Y-12 National Security Complex), Chris Haught (Y-12 National Security Complex)
Pressurized Gases as Neutron Reflectors
Trevor Stewart (LANL), Ning Zhang (LANL)
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