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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.
R. L. Macklin, C. W. Alexander
Nuclear Science and Engineering | Volume 104 | Number 3 | March 1990 | Pages 258-270
Technical Paper | doi.org/10.13182/NSE90-A23724
Articles are hosted by Taylor and Francis Online.
Uranium-236 neutron absorption is measured as a function of neutron time of flight from 20 eV to 1 MeV. The neutron flux is monitored with a 6Li glass scintillator. Average cross sections from 3 keV to 1 MeV are derived. Estimated uncertainties are <5% below 600 keV and increase to 9.5% at 1 MeV. From 20-eV to 4.2-keV neutron energy, 293 resonance peaks are parameterized.
