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2026 Annual Conference
May 31–June 3, 2026
Denver, CO|Sheraton Denver
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Latest News
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).
N. G. Sjöstrand, E. B. Dahl
Nuclear Science and Engineering | Volume 57 | Number 1 | May 1975 | Pages 84-86
Technical Note | doi.org/10.13182/NSE75-A40347
Articles are hosted by Taylor and Francis Online.
With recently published results of Kaper et al. as a basis, accurate extrapolated endpoints have been calculated for homogeneous pulsed slabs and spheres. The neutrons were assumed to be monoenergetic and to scatter isotropically. In contrast to P3 calculations, the results indicate a zero slope at small bucklings of the curve describing the extrapolated endpoint as a function of buckling.