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Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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Deep Fission raises $30M in financing
Since the Department of Energy kicked off a 10-company race with its Nuclear Reactor Pilot Program to bring test reactors on line by July 4, 2026, the industry has been waiting for new headlines proclaiming progress. Aalo Atomics broke ahead of the pack first by announcing last week that it had broken ground on its 50-MWe Aalo-X at Idaho National Laboratory.
S. B. Gunst, J. C. Connor, E. Fast
Nuclear Science and Engineering | Volume 8 | Number 2 | August 1960 | Pages 128-132
Technical Paper | doi.org/10.13182/NSE60-A25788
Articles are hosted by Taylor and Francis Online.
In reactor-lifetime calculations it is customary to take account of the transient behavior of two fission-product poisons, Xe135 and Sm149, and to assume the gross poisoning due to all other products is a function of the total time-integrated exposure irrespective of the detailed flux history. This description tacitly assumes that the gross poisoning of the other products is stable. The adequacy of the description is demonstrated experimentally for a natural UO2 sample irradiated in a reactor flux of 2 × 1014 n/cm2-sec to an exposure of 6300 Mwd/ton. The poisoning associated with the so-called “stable” fission products is found to change only (−7 ± 3) barns/fission per year.
