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Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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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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New coolants, new fuels: A new generation of university reactors
Here’s an easy way to make aging U.S. power reactors look relatively youthful: Compare them (average age: 43) with the nation’s university research reactors. The 25 operating today have been licensed for an average of about 58 years.
J. B. Czirr, J. S. Lindsey
Nuclear Science and Engineering | Volume 41 | Number 1 | July 1970 | Pages 56-62
Technical Paper | doi.org/10.13182/NSE70-A20363
Articles are hosted by Taylor and Francis Online.
The ratio of the neutron capture to fission cross section (α) has been measured for 239Pu in the energy range from 100 eV to 30 keV. Neutron time-of-flight techniques were used to obtain data with an energy resolution of approximately 10% at 10 keV. The data yield an average α = 0.80 ± 0.05 between 0.10 and 10 keV for an energy-independent incident neutron spectrum. Also, α data were obtained in the resolved resonance region below 100 eV.
