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
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
ANS Student Conference 2025
April 3–5, 2025
Albuquerque, NM|The University of New Mexico
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
Feb 2025
Jul 2024
Latest Journal Issues
Nuclear Science and Engineering
March 2025
Nuclear Technology
Fusion Science and Technology
February 2025
Latest News
Candidates for leadership provide statements: ANS Board of Directors
With the annual ANS election right around the corner, American Nuclear Society members will be going to the polls to vote for a vice president/president-elect, treasurer, and members-at-large for the Board of Directors. In January, Nuclear News published statements from candidates for vice president/president-elect and treasurer. This month, we are featuring statements from each nominee for the Board of Directors.
Paul C. S. Wu
Nuclear Technology | Volume 39 | Number 1 | June 1978 | Pages 84-94
Nuclear Safety Analysis | Energy Modeling and Forecasting / Material | doi.org/10.13182/NT78-A17010
Articles are hosted by Taylor and Francis Online.
The physical and nuclear properties of EU2O3 were reviewed, evaluated, and compared with those of the other potential control materials for breeder reactors. Europia with a 90% theoretical density has approximately the same amount of europium atoms per unit volume as the pure metal. Consequently, the reactivity worth per unit volume of Eu2O3 is similar to that of pure metal. In addition, the reactivity of EU2O3 is superior to tantalum and is comparable to natural B4C. The decay heat of Eu2O3 is much lower than that of tantalum over the range of decay times that is of interest with respect to handling. Irradiation-induced swelling of EU2O3 is lower than that of B4C, and postirradiation examination revealed only ∼1% dimensional changes in the thermal- and/or fast-neutron spectrum (8 × 1025 n/m2). Although surface reaction between EU2O3 and the fast test reactor reference cladding Type 316 stainless steel leads to the formation of a europium silicate, it is expected that Eu2O3 would be compatible with low-silicon Type 316 stainless steel. In addition, the Eu2O3-sodium system was also shown to be compatible under simulated liquid-metal fast breeder reactor conditions without significant change. Consequently, Eu2O3 is an excellent alternate candidate compared to B4C as the neutron absorber for fast breeder reactors.
