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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.
A. B. Smith, J. F. Whalen, E. Barnard, J. A. M. de Villiers, D. Reitmann
Nuclear Science and Engineering | Volume 41 | Number 1 | July 1970 | Pages 63-69
Technical Paper | doi.org/10.13182/NSE70-A20364
Articles are hosted by Taylor and Francis Online.
Total neutron cross sections of bismuth were measured with resolutions of < 3 keV over the energy range 0.2 to 1.4 MeV. Differential elastic-scattering cross sections were determined at intervals < 50 keV from 0.3 to 1.5 MeV with resolutions of ∼20 keV. The inelastic-neutron excitation of a state at 896 ± 1 keV was observed and the respective differential excitation cross sections determined with incident resolutions of ≥12 keV. Partially resolved resonance structure was evident in all the measured values. The experimental results were assayed for possible intermediate structure and were compared with the results of optical model and statistical calculations. The model calculations were inclusive of contributions due to the fluctuation and correlation of compound-nucleus resonance widths and of the shell closure at N = 126.