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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.
Norman Ketzlach
Nuclear Science and Engineering | Volume 6 | Number 3 | September 1959 | Pages 187-190
Technical Paper | doi.org/10.13182/NSE59-A25658
Articles are hosted by Taylor and Francis Online.
The maximum safe limits on the storage and shipment of slightly enriched fuels may be increased by the addition of fixed neutron poisons. A theoretical study, verified by experiment, is presented to show that an infinite amount of O.95 per cent U235 enriched fuel will be subcritical when the fuel elements are encased in tubing at least ⅛ in. thick. The fuel elements considered are solid rods of 1.34-in. diameter and tubular elements of 1.37-in. O.D. and O.48-in. I.D. Without the tubing it is possible to make as little as four tons of the fuel elements considered critical.
