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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.
W. C. Redman, M. M. Bretscher
Nuclear Science and Engineering | Volume 31 | Number 2 | February 1968 | Pages 247-253
Technical Paper | doi.org/10.13182/NSE68-A18237
Articles are hosted by Taylor and Francis Online.
A combination of relative reactivity measurements and absolute counting techniques has been applied to determine the epicadmium capture-to-fission ratio for 235U. Significant features of this procedure are its requirement of only a moderate neutron flux, the application of 252Cf and manganese to measure the relative importance of fission and absorbed neutrons, and the use of methods that differ from those applied in the high fluence procedures for α measurements. The resulting value of 0.519 ± 0.023, for infinite sample dilution, l/E spectrum, and 0.5-eV low-energy cutoff, is in good agreement with recent results from high fluence irradiations and differential cross-section data.