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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.
V. C. Badham, G. C. Pomraning
Nuclear Science and Engineering | Volume 86 | Number 1 | January 1984 | Pages 63-75
Technical Paper | doi.org/10.13182/NSE84-A17970
Articles are hosted by Taylor and Francis Online.
A new method for solving the Boltzmann equation is presented and shown to generalize the “classical” spherical harmonics method. This new method utilizes polynomials that are spatially, as well as angularly, dependent and allows for the exact representation of the angular flux under certain conditions. The ideas behind using different truncation procedures as a means of truncating the infinite set of exact spherical harmonics equations to a finite set of approximate equations and allowing this procedure to supply more transport information to these approximate equations are explored. Preliminary results are also presented that show the differences and similarities of these methods as they relate to the exact results.