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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).
G. Shiralker, W. Rohsenow, A. Sonin, N. Todreas
Nuclear Science and Engineering | Volume 66 | Number 1 | April 1978 | Pages 103-109
Technical Paper | doi.org/10.13182/NSE78-A15192
Articles are hosted by Taylor and Francis Online.
An experimental investigation was made to assess the hypothesis of Epstein that violent release of dissolved gas upon rapid cooling of a molten metal is responsible for observed free-contact fragmentation. Results from quenching tin drops initially heated in vacuum and air to develop drastic initial differences in oxygen solubility levels did not demonstrate any differences in observed fragmentation occurrence or intensity. It is concluded that this hypothesis is not the operative mechanism for free-contact fragmentation in the tin-water system.
