ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
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Division Spotlight
Young Members Group
The Young Members Group works to encourage and enable all young professional members to be actively involved in the efforts and endeavors of the Society at all levels (Professional Divisions, ANS Governance, Local Sections, etc.) as they transition from the role of a student to the role of a professional. It sponsors non-technical workshops and meetings that provide professional development and networking opportunities for young professionals, collaborates with other Divisions and Groups in developing technical and non-technical content for topical and national meetings, encourages its members to participate in the activities of the Groups and Divisions that are closely related to their professional interests as well as in their local sections, introduces young members to the rules and governance structure of the Society, and nominates young professionals for awards and leadership opportunities available to members.
Meeting Spotlight
International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering (M&C 2025)
April 27–30, 2025
Denver, CO|The Westin Denver Downtown
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
TerraPower begins U.K. regulatory approval process
Seattle-based TerraPower signaled its interest this week in building its Natrium small modular reactor in the United Kingdom, the company announced.
TerraPower sent a letter to the U.K.’s Department for Energy Security and Net Zero, formally establishing its intention to enter the U.K. generic design assessment (GDA) process. This is TerraPower’s first step in deployment of its Natrium technology—a 345-MW sodium fast reactor coupled with a molten salt energy storage unit—on the international stage.
F. J. Sandalls
Nuclear Technology | Volume 52 | Number 1 | January 1981 | Pages 115-120
Technical Paper | Analysis | doi.org/10.13182/NT81-A32695
Articles are hosted by Taylor and Francis Online.
Sulfur is an important element in some food chains and the release of radioactive sulfur to the environment must be closely controlled if the chemical form is such that it is available or potentially available for entering food chains. The presence of 35S in the coolant gas of the Windscale Advanced Gas-Cooled Reactor (WAGR) warranted a study to assess the quantity and chemical form of the radioactive sulfur, in order to estimate the magnitude of the potential environmental hazard that might arise from the release of coolant gas from civil advanced gas-cooled reactors. A combination of gas chromatographic and radiochemical analyses revealed carbonyl sulfide to be probably the only 35S compound present in the coolant gas of the WAGR. The concentration of carbonyl sulfide was found to lie in the range 40 to 100 X 10-9 parts by volume and the 35S specific activity was ∼740 X109 Bq· kg-1 (20 mCi/g). The 35S appears to be derived from the sulfur and chlorine impurities in the graphite although other sources cannot be ruled out. Carbonyl sulfide labeled with 35S can be prepared in the laboratory from KCN 35S.
