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
Thermal Hydraulics
The division provides a forum for focused technical dialogue on thermal hydraulic technology in the nuclear industry. Specifically, this will include heat transfer and fluid mechanics involved in the utilization of nuclear energy. It is intended to attract the highest quality of theoretical and experimental work to ANS, including research on basic phenomena and application to nuclear system design.
Meeting Spotlight
2025 ANS Annual Conference
June 15–18, 2025
Chicago, IL|Chicago Marriott 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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Nuclear Science and Engineering
July 2025
Nuclear Technology
Fusion Science and Technology
Latest News
Smarter waste strategies: Helping deliver on the promise of advanced nuclear
At COP28, held in Dubai in 2023, a clear consensus emerged: Nuclear energy must be a cornerstone of the global clean energy transition. With electricity demand projected to soar as we decarbonize not just power but also industry, transport, and heat, the case for new nuclear is compelling. More than 20 countries committed to tripling global nuclear capacity by 2050. In the United States alone, the Department of Energy forecasts that the country’s current nuclear capacity could more than triple, adding 200 GW of new nuclear to the existing 95 GW by mid-century.
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.
