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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.
James A. Young, Juan U. Koppel
Nuclear Science and Engineering | Volume 19 | Number 3 | July 1964 | Pages 367-373
Technical Paper | doi.org/10.13182/NSE64-A20971
Articles are hosted by Taylor and Francis Online.
Using a central-force model, with experimentally determined force constants, the lattice vibrational spectrum of beryllium has been determined from a sampling of 2413 points in the first Brillouin zone. The specific heat derived from this spectrum agrees well with measured values. This vibrational spectrum has been used to compute the inelastic scattering of slow neutrons from beryllium in the incoherent approximation. Agreement with experiment is good in the region of high momentum transfer where this approximation applies. The coherent elastic scattering depends on the vibrational spectrum, and this has also been computed.