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The deadline arrives: Checking in on the Reactor Pilot Program
On May 23, 2025, President Trump signed Executive Order 14301, “Reforming Nuclear Reactor Testing at the DOE,” which instructed the Department of Energy to create a Reactor Pilot Program (RPP)—a new system in which companies could pursue DOE authorization to build and test their first-of-a-kind nuclear technologies. EO 14301 set an ambitious goal for that program: three reactors achieving criticality by July 4, 2026.
T. Choong and E. Kujawski
Nuclear Science and Engineering | Volume 60 | Number 3 | July 1976 | Pages 326-329
Technical Note | doi.org/10.13182/NSE76-A26892
Articles are hosted by Taylor and Francis Online.
The 238U inelastic scattering was modified to reflect the recently recommended larger values for the 45-keV (2+) and 146-keV (4+) levels. The partial inelastic cross sections for the other levels given in ENDF/B-IV between 0.8 and 3.7MeV were accordingly decreased such as to keep the total inelastic cross section unchanged. To investigate the consequences of these modifications three fast-neutron assemblies have been analyzed. The above modifications result in a general improvement between calculated and measured fast-reactor parameters.
