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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).
R. L. Macklin, R. W. Ingle, J. Halperin
Nuclear Science and Engineering | Volume 71 | Number 2 | August 1979 | Pages 205-208
Technical Note | doi.org/10.13182/NSE79-A20412
Articles are hosted by Taylor and Francis Online.
The efficiency of a 0.5-mm-thick 6Li glass scintillation monitor was determined above the “1/v” region by comparison with the counting rate of a ten-plate 235U fission ionization chamber in a neutron beam from the Oak Ridge Electron Linear Accelerator. The chief difference in derived 6Li(n,α) cross sections from the ENDF/B-V evaluation is a slightly greater width (∼8%) of the prominent resonance peaking near 240 keV and a higher cross section in the wings. The steep rise in efficiency from 3500 to 5000 keV is attributed primarily to the 16O(n, α) reaction.
