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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.
Y. Y. Chang, S. K. Loyalka, D. H. Timmons
Nuclear Science and Engineering | Volume 70 | Number 3 | June 1979 | Pages 313-315
Technical Note | doi.org/10.13182/NSE79-A20154
Articles are hosted by Taylor and Francis Online.
A modified version of the LASER computer code is constructed by using Gear's method for isotopic burnup calculations. It is noted that the original version of the LASER code (as supplied recently by the Argonne Computer Code Center) errs in computation of 241Pu concentration due to a minor programming oversight. This error is corrected, and it is found that the corrected LASER and the modified LASER provide results that agree quite well. For the same calculations, the modified LASER requires only two-thirds the central processor unit time compared to the original (corrected) LASER (on an IBM 370/158). Also, the modified LASER has simpler and more general provisions for handling burnup calculations.
