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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.
Mohamed Ouisloumen, Richard Sanchez
Nuclear Science and Engineering | Volume 107 | Number 3 | March 1991 | Pages 189-200
Technical Paper | doi.org/10.13182/NSE89-186
Articles are hosted by Taylor and Francis Online.
The exact form of the differential scattering cross section for elastic scattering in an isotropic media with a Maxwellian velocity distribution is derived. Numerical examples show substantial neutron upscattering off heavy isotopes. Scattering resonances strongly affect neutron scattering, and it is found that for the lowest energy resonances of 238U, the average energy of the scattered neutron can be higher than the initial neutron energy.
