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May 31–June 3, 2026
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Perpetual Atomics, QSA Global produce Am fuel for nuclear space power
U.K.-based Perpetual Atomics and U.S.-based QSA Global claim to have achieved a major step forward in processing americium dioxide to fuel radioisotope power systems used in space missions. Using an industrially scalable process, the companies said they have turned americium into stable, large-scale ceramic pellets that can be directly integrated into sealed sources for radioisotope power systems, including radioisotope heater units (RHUs) and radioisotope thermoelectric generators (RTGs).
R. L. Macklin
Nuclear Science and Engineering | Volume 79 | Number 3 | November 1981 | Pages 265-268
Technical Paper | doi.org/10.13182/NSE81-A19403
Articles are hosted by Taylor and Francis Online.
The 197Au(n,γ) cross section was measured as a function of neutron energy by time of flight. The data agree well with recent results averaged over limited energy regions but fall slightly below the ENDF/B-V evaluation at most energies. The most prominent structure seen is attributed to competition cusps of several percent amplitude just above the thresholds for inelastic neutron scattering to 5/2+ levels in 197Au.
