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Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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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.
R. H. Fulmer, D. P. Stricos, T. F. Ruane
Nuclear Science and Engineering | Volume 46 | Number 2 | November 1971 | Pages 314-317
Technical Note | doi.org/10.13182/NSE71-A22365
Articles are hosted by Taylor and Francis Online.
Neutron absorption cross sections for 94Zr and 96Zr were measured by an activation technique. Absolute gamma-ray counting of the radioactive daughters, with a Ge(Li) detector-multichannel analyzer system, yielded disintegration rates which were calibrated in terms of cross section with gold samples. Results, in barns, for 2200 m/sec cross sections and resonance integrals are 94Zr, 0.052 ± 0.003, 0.30 ± 0.03; 96Zr, 0.020 ± 0.003, 5.0 ± 0.4, respectively. The low value of the 96Zr thermal cross section requires that the resonance at 301 eV be p wave.