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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.
D. Brandt
Nuclear Science and Engineering | Volume 79 | Number 4 | December 1981 | Pages 333-339
Technical Paper | doi.org/10.13182/NSE81-A21385
Articles are hosted by Taylor and Francis Online.
A semianalytical method is developed for solving the stationary neutron transport equation in plane geometry. The angular variable is treated fully analytically, while the spatial dependence is approximated by the two-point Hermite method of arbitrary order k. The theory will be applied to a multigroup, multizone calculation of shields with PL scattering. Although the treatment is restricted to a k = 1 Hermite approximation, results are improved by introducing asymptotic coefficients simulating the k = ∞ case. Comparison with ANISN shows that the present method converges faster and leads to shorter computing times.