ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
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.
Meeting Spotlight
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!
Latest Magazine Issues
May 2024
Jan 2024
Latest Journal Issues
Nuclear Science and Engineering
June 2024
Nuclear Technology
Fusion Science and Technology
Latest News
Become a knowledge manager at UWC 2024
The American Nuclear Society is now accepting applications for knowledge managers to work during the 2024 Utility Working Conference and Vendor Technology Expo. This year’s UWC, “Nuclear Momentum: Advancing Our Clean Energy Future,” will be held August 4–7, 2024, at the JW Marriott Marco Island Beach Resort on Marco Island, Fla.=
In-Tae Kim, Hwan-Seo Park, Seong-Won Park, Eung-Ho Kim
Nuclear Technology | Volume 162 | Number 2 | May 2008 | Pages 219-228
Technical Paper | First International Pyroprocessing Research Conference | doi.org/10.13182/NT08-A3950
Articles are hosted by Taylor and Francis Online.
Chloride salt wastes, which are supposed to be generated from a pyrochemical processing of spent nuclear fuels, are one of the wastes that are problematic to treat because of their high solubility in water and the relatively high volatility of some of their nuclides during a high-temperature thermal treatment. In this paper, we propose a new conditioning method, named the gel-route stabilization/solidification (GRSS) method, and present a practical example of its application to fabricate a monolithic waste form for LiCl waste. The GRSS process is carried out in four steps: gelation, drying, mixing with binder glass, and heat treatment (thermal conditioning). The gel-forming material system consists of sodium silicate as a gelling agent, phosphoric acid as a catalyst/stabilizer, and aluminium nitrate as a promoter. Through the drying step, LiCl, CsCl, and SrCl2 are chemically converted into phosphate or aluminosilicate forms, depending on the Si/P/Al molar ratio. The gel products are thermally stable, and there is little possibility of a Cs vaporization up to 1200°C. The final waste form, fabricated by thermally treating a mixture of the gel products and borosilicate glass frit, shows low leach rates (by a product consistency test method for 7 days), 10-2 to 10-3 g/m2day for Cs and 10-3 to 10-4 g/m2day for Sr, which are comparable or superior to that of a glass-bonded sodalite ceramic waste form. Also, the amount of waste loading is ~16%, which is double that of the zeolite process, to generate a lesser final waste volume for disposal. From these results, it could be concluded that the GRSS method can be considered as an alternative technology for a sound immobilization of chloride salt wastes.