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
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.”
V. C. Rogers, D. R. Dixon, C. G. Hoot, D. Costello, V. J. Orphan
Nuclear Science and Engineering | Volume 62 | Number 4 | April 1977 | Pages 716-725
Technical Paper | doi.org/10.13182/NSE77-A15212
Articles are hosted by Taylor and Francis Online.
Gamma-ray production cross sections were measured for (n,xγ) reactions in natural copper from 0.68- to 19.6-MeV neutron energy using the IRT Linac pulsed neutron source and a Ge(Li) detection system measuring gamma rays in the energy range from 365 to 6620 keV. Cross sections for 65 gamma rays are given using 17 neutron energy groups. For an additional 21 discrete gamma rays of uncertain origin, cross sections were determined for 11 neutron energy groups. The gamma-ray spectra for 16 neutron energy groups were also unfolded to obtain gamma-ray production cross sections for the sum of both discrete and continuum gamma rays. The cross sections are in general agreement with previous work for both the discrete peaks and the unfolded spectra, except near 15 MeV. Measurements of the discrete lines provide needed experimental data for the neutron energy region from 3 to 20 MeV.
