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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. E. Kinney, F. G. Perey
Nuclear Science and Engineering | Volume 63 | Number 4 | August 1977 | Pages 418-429
Technical Paper | doi.org/10.13182/NSE77-A27059
Articles are hosted by Taylor and Francis Online.
High-resolution gamma-ray production cross sections for the 846-keV gamma ray of iron have been measured up to an incident neutron energy of 2100 keV. The measurements were performed using the Oak Ridge Electron Linear Accelerator as the neutron source, and they were obtained by a ratio measurement to the 7Li 477-keV gamma-ray cross sections. Three NE-213 detectors were used at 30, 90, and 125 deg to derive the total inelastic cross sections and the angular distributions. The 1250 angular distributions measured with ∼0.1 ns/m resolution show considerable fluctuations as a function of energy over the resonances seen in the inelastic cross sections. The results are compared to the ENDF/B-IV evaluation, high-resolution data at 125 deg and, after suitable averaging, with recent monoenergetic neutron source data that average over the structure experimentally. The general consistency of the data with recent measurements, using different techniques and normalization procedures, indicates that our knowledge of this important cross section for fission reactor applications may now be known to an accuracy better than 10%. This is a significant achievement in view of the wide scatter of earlier data on such a fluctuating cross section.