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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).
V. C. Rogers
Nuclear Science and Engineering | Volume 52 | Number 1 | September 1973 | Pages 145-147
Technical Note | doi.org/10.13182/NSE73-A23299
Articles are hosted by Taylor and Francis Online.
Within the framework of the Hauser-Feshbach-Moldauer formalism for calculating fast-neutron cross sections, resonance interference effects are contained in the parameter Q. This parameter is shown to be a function of the corresponding transmission coefficients. From a parametric analysis of Q and of the channel coefficients, it is concluded that resonance interference has a negligible effect on the calculated cross sections.