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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.
Gerald P. Calame
Nuclear Science and Engineering | Volume 13 | Number 1 | May 1962 | Pages 32-39
Technical Paper | doi.org/10.13182/NSE62-A26125
Articles are hosted by Taylor and Francis Online.
A numerical procedure for the calculation of thermal diffusion lengths directly from the formalism of Hurwitz and Nelkin is described. The technique is used to compute diffusion lengths for several plastic moderated assemblies, using the mass 1, free proton energy exchange kernel. Agreement of the calculated diffusion lengths with experiment is excellent.
