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
Accelerator Applications
The division was organized to promote the advancement of knowledge of the use of particle accelerator technologies for nuclear and other applications. It focuses on production of neutrons and other particles, utilization of these particles for scientific or industrial purposes, such as the production or destruction of radionuclides significant to energy, medicine, defense or other endeavors, as well as imaging and diagnostics.
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!
Latest Magazine Issues
Jun 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
August 2025
Nuclear Technology
July 2025
Fusion Science and Technology
Latest News
Nuclear fuel cycle reimagined: Powering the next frontiers from nuclear waste
In the fall of 2023, a small Zeno Power team accomplished a major feat: they demonstrated the first strontium-90 heat source in decades—and the first-ever by a commercial company.
Zeno Power worked with Pacific Northwest National Laboratory to fabricate and validate this Z1 heat source design at the lab’s Radiochemical Processing Laboratory. The Z1 demonstration heralded renewed interest in developing radioisotope power system (RPS) technology. In early 2025, the heat source was disassembled, and the Sr-90 was returned to the U.S. Department of Energy for continued use.
E. J. Dowdy, E. J. Lozito, E. A. Plassmann
Nuclear Technology | Volume 25 | Number 2 | February 1975 | Pages 381-389
Technical Paper | Material Dosimetry | doi.org/10.13182/NT75-A24375
Articles are hosted by Taylor and Francis Online.
The BIG-TEN critical assembly at the Los Alamos Scientific Critical Experiments Facility was designed to provide a neutron spectrum somewhat like that expected in the liquid-metal fast breeder reactor. The relatively uncomplicated configuration of this assembly makes it useful for comparison of measured and calculated neutronic characteristics, and the high precision reproducibility of reactivity makes it valuable for intercomparisons of reaction rates. The central neutron spectrum was measured using protonrecoil proportional-counting techniques with pulse shape discrimination capability for the energy range from 27 to 1200 keV.
