Critical Studies of Core B for the Enrico Fermi Atomic Power Plant (ZPR-III Assembly No. 35)

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Critical studies of a simplified mockup of the second loading (Core B) for the Enrico Fermi fast reactor were made. The core consists of a fully enriched, UO/sub 2/-stainless steel cermet clad in stainless steel and cooled by sodium. The high critical mass found for the reactor mockup led to a series of experiments on reducing neutron leakage from the core by surrounding it with different reflectors. With a nickel reflector in place, measurements were made of the reactivity worths of various engineering features of the Fermi reactor, distributed and local reactivity coefficients, various fission and capture rates and fission … continued below

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96 pages

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Doyle, T. A. & Hess, A. L. February 1963.

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Critical studies of a simplified mockup of the second loading (Core B) for the Enrico Fermi fast reactor were made. The core consists of a fully enriched, UO/sub 2/-stainless steel cermet clad in stainless steel and cooled by sodium. The high critical mass found for the reactor mockup led to a series of experiments on reducing neutron leakage from the core by surrounding it with different reflectors. With a nickel reflector in place, measurements were made of the reactivity worths of various engineering features of the Fermi reactor, distributed and local reactivity coefficients, various fission and capture rates and fission ratios, and the prompt-neutron lifetime. Finally, with a nickel oxide reflector in place, some of the above measurements were repeated. (auth)

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96 pages

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Other Information: Orig. Receipt Date: 31-DEC-63

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  • February 1963

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  • Oct. 18, 2017, 7:39 a.m.

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Doyle, T. A. & Hess, A. L. Critical Studies of Core B for the Enrico Fermi Atomic Power Plant (ZPR-III Assembly No. 35), report, February 1963; Idaho Falls, Idaho. (https://digital.library.unt.edu/ark:/67531/metadc1026421/: accessed May 12, 2025), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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