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Conference Spotlight
2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
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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
Radiant to build first microreactor at Tenn. Manhattan Project site
Radiant Industries will build its first portable nuclear reactor at the site of the Manhattan Project in Oak Ridge, Tenn.
The land for Radiant’s new factory includes portions of the K-27 and K-29 Manhattan Project sites. The company plans to test Kaleidos, a 1-MW nuclear microreactor, in 2026, with first deployments expected soon after.
L. Mewissen, F. Poortmans, E. Cornelis, G. Vanpraet, A. Angeletti, G. Rohr, H. Weigmann
Nuclear Science and Engineering | Volume 70 | Number 2 | May 1979 | Pages 155-162
Technical Paper | doi.org/10.13182/NSE79-A19648
Articles are hosted by Taylor and Francis Online.
Capture, elastic scattering, and total cross-section measurements were performed on 237Np between 8 and 204 eV. The neutron widths, Γn, were obtained for 200 resonances and the radioactive widths, Γγ, for 25 resonances. The mean capture width <Γγ> = 41.2 ± 2.9 meV, and the mean s-wave resonance spacing D0 = 0.740 ± 0.061 eV. The s-wave strength function was found to be S0 = (1.02 ± 0.14) × 10−4.
