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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.
Katsumi Hayashi, Takashi Nakamura
Nuclear Science and Engineering | Volume 91 | Number 3 | November 1985 | Pages 332-348
Technical paper | doi.org/10.13182/NSE85-A17309
Articles are hosted by Taylor and Francis Online.
The skyshine dose distributions of neutron and secondary gamma rays were calculated systematically using the Monte Carlo method for distances up to 2 km from the source. The energy of source neutrons ranged from thermal to 400 MeV; their emission angle from 0 to 90 deg from the vertical was treated with a distribution of the direction cosine containing five equal intervals.
