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Conference Spotlight
2026 Annual Conference
May 31–June 3, 2026
Denver, CO|Sheraton Denver
Standards Program
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).
P. L. Reeder, L. J. Alquist, R. L. Kiefer, F. H. Ruddy, R. A. Warner
Nuclear Science and Engineering | Volume 75 | Number 2 | August 1980 | Pages 140-150
Technical Paper | doi.org/10.13182/NSE80-A21303
Articles are hosted by Taylor and Francis Online.
Energy spectra of delayed neutrons from the precursors 93,94,95Rb and 143Cs have been measured by use of an on-line mass spectrometer and a 3He neutron spectrometer. Details of the experimental techniques, data analysis, and error estimates are given. A comparison of delayed-neutron spectra for 87Br, 93,94,95Rb, and 143Cs measured by three different laboratories is presented. Peak structures are reproduced by all laboratories, but the relative intensities below 200 keV vary according to different measurement or data analysis techniques.
