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Conference Spotlight
2026 Annual Conference
May 31–June 3, 2026
Denver, CO|Sheraton Denver
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The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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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).
S. Traiforos, A. Mittler, W. A. Schier, B. K. Barnes, L. E. Beghian, P. Harihar
Nuclear Science and Engineering | Volume 72 | Number 2 | November 1979 | Pages 191-201
Technical Paper | doi.org/10.13182/NSE79-A19463
Articles are hosted by Taylor and Francis Online.
A total of 22 gamma-ray transitions were measured from (n,n′γ) reactions on the four even-even nickel isotopes, 58,60,62,64Ni. Absolute gamma-ray production excitation functions at 125 deg were extracted for these transitions from their thresholds up to neutron energies of 4 MeV. Inelastic neutron scattering cross sections for 19 levels were inferred from the gamma-ray production data and compared to the Evaluated Nuclear Data File (ENDF/B-IV, MAT 1190). Cross-section agreement for the first excited 2+ states in these four isotopes is generally good, but excitation functions associated with many of the higher excited states in nickel are in strong disagreement with the file.
