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
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!
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Latest News
First astatine-labeled compound shipped in the U.S.
The Department of Energy’s National Isotope Development Center (NIDC) on March 31 announced the successful long-distance shipment in the United States of a biologically active compound labeled with the medical radioisotope astatine-211 (At-211). Because previous shipments have included only the “bare” isotope, the NIDC has described the development as “unleashing medical innovation.”
Trine-Yie Dawn
Nuclear Science and Engineering | Volume 77 | Number 3 | March 1981 | Pages 344-351
Technical Note | doi.org/10.13182/NSE81-A19842
Articles are hosted by Taylor and Francis Online.
The method of D-partitions is introduced to study the stability property of the reactor dynamic equation with six-delay-group representation. Two kinds of feedback models are considered—the delayed and the two-path temperature feedback. The stability region in parameter space, the effect of delayed neutrons, and the unconditional stability of the two-path temperature feedback are discussed in detail. The corresponding results of the one-delay-group model, one-group prompt-jump approximation, and effective lifetime model are also presented for comparing and discussing the validity or accuracy of these simplified kinetic models.
