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Breaking ground on a new approach to construction
The drive to Kairos Power’s reactor demonstration site in Oak Ridge, Tenn., is not only scenic—it’s historic. Nearly 85 years ago, roughly 30,000 construction workers transformed orchards and farmland into a key Manhattan Project site. Depending on your route, you may pass by one of the three gatehouses that were once military checkpoints controlling access to Atomic Energy Commission production facilities.
I. Asplund-Nilsson, H. Condé, N. Starfelt
Nuclear Science and Engineering | Volume 15 | Number 2 | February 1963 | Pages 213-216
Technical Paper | doi.org/10.13182/NSE63-A26420
Articles are hosted by Taylor and Francis Online.
The average number, , of prompt neutrons emitted in the spontaneous fission of U238 and Pu240 has been measured relative to for the spontaneous fission of Cf252. This reference value is taken to be = 3.80. The measurements have been performed with large liquid scintillators and the results obtained are (U238) = 1.97 ± 0.07 and (Pu240) = 2.154 ± 0.028.
