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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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PR: American Nuclear Society welcomes Senate confirmation of Ted Garrish as the DOE’s nuclear energy secretary
Washington, D.C. — The American Nuclear Society (ANS) applauds the U.S. Senate's confirmation of Theodore “Ted” Garrish as Assistant Secretary for Nuclear Energy at the U.S. Department of Energy (DOE).
“On behalf of over 11,000 professionals in the fields of nuclear science and technology, the American Nuclear Society congratulates Mr. Garrish on being confirmed by the Senate to once again lead the DOE Office of Nuclear Energy,” said ANS President H.M. "Hash" Hashemian.
G. R. Keepin
Nuclear Science and Engineering | Volume 5 | Number 2 | February 1959 | Pages 132-136
Technical Paper | doi.org/10.13182/NSE59-A25566
Articles are hosted by Taylor and Francis Online.
Reactor period-reactivity relations may be determined directly by numerical integration of “prompt-burst” neutron decay data without analysis into delayed neutron period and abundance values. Period-reactivity relations obtained by this method for six fissile species are compared with the corresponding relations calculated from the customary “inhour” equation. Application of this method to mixtures of fissile materials in various neutron energy spectra is discussed.
