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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).
Ehud Greenspan
Nuclear Science and Engineering | Volume 56 | Number 1 | January 1975 | Pages 100-103
Technical Note | doi.org/10.13182/NSE75-A26627
Articles are hosted by Taylor and Francis Online.
A new version of the source-multiplication method for measuring subcritical reactivities is presented. It does not require calibration against an independent reactivity measurement and can be applied for the determination of reactivities over the entire range of reactor shutdown. This version is compared with other source-multiplication methods.
