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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. J. Howerton
Nuclear Science and Engineering | Volume 62 | Number 3 | March 1977 | Pages 438-454
Technical Paper | doi.org/10.13182/NSE77-A26983
Articles are hosted by Taylor and Francis Online.
A method for predicting (Z,A,En) is developed and tested against available experimental data for isotopes ranging from 229Th to 249Cf The only input values required are the charge and mass numbers (Z and A) and the binding energy of the last neutron in the (A + 1) nucleus. For incident neutron energies greater than the threshold of multiple-chance fission, the method is extended by accounting for each fission process separately. This method is an extension of work reported by the author in 1963 and 1971.