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Division Spotlight
Reactor Physics
The division's objectives are to promote the advancement of knowledge and understanding of the fundamental physical phenomena characterizing nuclear reactors and other nuclear systems. The division encourages research and disseminates information through meetings and publications. Areas of technical interest include nuclear data, particle interactions and transport, reactor and nuclear systems analysis, methods, design, validation and operating experience and standards. The Wigner Award heads the awards program.
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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NRC v. Texas: Supreme Court weighs challenge to NRC authority in spent fuel storage case
The State of Texas has not one but two ongoing federal court challenges to the Nuclear Regulatory Commission that could, if successful, turn decades of NRC regulations, precedent, and case law on its head.
S. J. Gage, G. D. Atkinson, Jr., G. D. Bouchey
Nuclear Technology | Volume 17 | Number 3 | March 1973 | Pages 247-260
Technical Paper | Radioisotope | doi.org/10.13182/NT73-A31268
Articles are hosted by Taylor and Francis Online.
A 1-mg 252 Cf neutron source is employed for neutron activation analysis studies on short half-life isotopes utilizing a cyclic irradiation-count sequence. A pneumatic, rapid-transfer system is used to transport samples from the irradiation position near a neutron source to the counting position adjacent to a gamma-ray spectrometer. Improved sensitivities are achieved for shortlived isotopes by selecting the optimal or near optimal cyclic policies. Interference-free sensitivities for several isotopes of possible interest are determined and compared to sensitivities achieved by conventional, noncyclic neutron activation analysis. The enhancement of the shortlived components is demonstrated for complex photospectra. Finally, the usefulness of a cyclic activation-counting procedure mth the 252Cf source is demonstrated for the assay of enriched uranium suggesting potential special nuclear materials safeguards applications.
