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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.
Thomas J. Seed, Robert W. Albrecht
Nuclear Science and Engineering | Volume 60 | Number 4 | August 1976 | Pages 346-356
Technical Paper | doi.org/10.13182/NSE76-A26896
Articles are hosted by Taylor and Francis Online.
The results obtained from the solution of the expansion coefficient equations obtained in the preceding paper for the Walsh approximation are given for both one and two dimensions. Since the one-dimensional analysis was performed mainly to lay a foundation for the two-dimensional analysis, only a brief summary of the one-dimensional results is given. The two-dimensional analysis was performed on a problem type that accentuates ray effects. Solutions obtained with various Walsh and Gauss-Walsh quadrature sets are shown; these solutions provide substantial mitigation of the ray effect, yet retain a reasonable degree of accuracy in the calculation of volumetric reaction rates.