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Division Spotlight
Isotopes & Radiation
Members are devoted to applying nuclear science and engineering technologies involving isotopes, radiation applications, and associated equipment in scientific research, development, and industrial processes. Their interests lie primarily in education, industrial uses, biology, medicine, and health physics. Division committees include Analytical Applications of Isotopes and Radiation, Biology and Medicine, Radiation Applications, Radiation Sources and Detection, and Thermal Power Sources.
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2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
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
Proving DRACO will deliver
The United States is now closer than it has been in over five decades to launching the first nuclear thermal rocket into space, thanks to DRACO—the Demonstration Rocket for Agile Cislunar Orbit.
D. J. Sherwood, C. L. Crawford, T. L. White, C. E. Duffey, T. B. Calloway
Nuclear Science and Engineering | Volume 158 | Number 1 | January 2008 | Pages 88-96
Technical Note | doi.org/10.13182/NSE08-A2741
Articles are hosted by Taylor and Francis Online.
Ventilation and mixing systems in the Hanford Waste Treatment and Immobilization Plant (WTP) are being designed to account for the flammable gas hydrogen that will form in process streams, just as it also does in the radioactive liquid wastes awaiting immobilization at the Hanford Tank Farms. Tank wastes forming hydrogen at the highest rates do so by reactions involving dissolved organic complexant compounds, even though hydrogen is also formed by the better known radiolysis pathway. Hydrogen generation rates (HGRs) are predicted with a correlation relating waste properties to reaction pathways involving radiolysis of water and the degradation of organic compounds. This correlation accounts only for aqueous phase reactions. An antifoam agent (AFA) will be added to waste processed in the WTP. This organic liquid mixture is immiscible in aqueous systems and will therefore form a nonaqueous phase liquid layer on the processed waste, unless some of its compounds are unstable in the hostile physical/chemical environment and break down into soluble degradation products. Dissolved organic species increase the organic source term in the WTP HGR correlation, but the correlation requires adaptation to address hydrogen formed from immiscible organic liquids. Here, we report our initial evaluation of the hydrogen formed by 60Co gamma irradiation of a waste simulant containing Dow Corning Q2-3183A AFA with an adapted WTP HGR correlation.