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
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!
Latest Magazine Issues
Apr 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
June 2025
Nuclear Technology
Fusion Science and Technology
May 2025
Latest News
ANS designates Armour Research Foundation Reactor as Nuclear Historic Landmark
The American Nuclear Society presented the Illinois Institute of Technology with a plaque last week to officially designate the Armour Research Foundation Reactor a Nuclear Historic Landmark, following the Society’s decision to confer the status onto the reactor in September 2024.
T. D. Reilly, E. R. Martin, J. L. Parker, L. G. Speir, R. B. Walton
Nuclear Technology | Volume 23 | Number 3 | September 1974 | Pages 318-327
Technical Paper | Instrument | doi.org/10.13182/NT74-A15924
Articles are hosted by Taylor and Francis Online.
A system has been developed to measure continuously the 235U and 234U enrichment in the UF6 product of a gaseous diffusion plant. The measurements are made on liquid UF6 prior to withdrawal into product cylinders. The 235U enrichment is measured to a relative accuracy of 0.5% at two sigma by counting the 185.7-keV gamma ray from 235U with an NaI detector. The 234U enrichment is measured with a neutron detector counting (α,n) neutrons from UF6. The neutron system can measure either 234 U enrichment directly or 235 U enrichment indirectly (for low-enriched uranium, 2 to 5% 235U, the two enrichments are nearly proportional). The accuracy of the neutron measurement is 2.5% at two sigma. The gamma and neutron measurements are independent and could be used singly if only one isotope were desired. Both are required to measure 235 U and 234 U enrichment. The system is presently installed at the Goodyear Atomic Corporation gaseous diffusion plant in Piketon, Ohio.