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5 results on '"Masahiro Fukushima"'

2. Experimental Analyses of 243Am and 235U Fission Reaction Rates at Kyoto University Critical Assembly

Author

Akito Oizumi, Masahiro Fukushima, and Cheol Ho Pyeon

Subjects
Core (optical fiber), Materials science, Nuclear Energy and Engineering, Fission, Nuclear fission, Nuclear engineering
Abstract

Measurements of 243Am and 235U fission reaction rates are conducted with the use of two single fission chambers in the solid-moderated and solid-reflected core at the Kyoto University Critical Asse...

Published
2021
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3. Uncertainty Quantification of Lead and Bismuth Sample Reactivity Worth at Kyoto University Critical Assembly

Author

Masahiro Fukushima, Masao Yamanaka, and Cheol Ho Pyeon

Subjects
Materials science, 010308 nuclear & particles physics, Nuclear engineering, 0211 other engineering and technologies, chemistry.chemical_element, Sample (statistics), 02 engineering and technology, 01 natural sciences, Bismuth, Lead (geology), Nuclear Energy and Engineering, chemistry, 0103 physical sciences, Reactivity (chemistry), 021108 energy, Uncertainty quantification
Abstract

Uncertainty quantification of lead (Pb) and bismuth (Bi) sample reactivity worth is numerically determined using the SCALE6.2 code system and experimental results obtained from the solid-moderated ...

Published
2021
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4. Lead Void Reactivity Worth in Two Critical Assembly Cores with Differing Uranium Enrichments

Author

John Alan Bounds, M. James, Akito Oizumi, Masahiro Fukushima, Theresa Cutler, Kazufumi Tsujimoto, Travis Grove, Hiroki Iwamoto, Jesson D. Hutchinson, Rene Sanchez, Joetta Goda, and George McKenzie

Subjects
Void (astronomy), Materials science, Nuclear Energy and Engineering, chemistry, 020209 energy, Metallurgy, 0202 electrical engineering, electronic engineering, information engineering, chemistry.chemical_element, 02 engineering and technology, Uranium
Abstract

To validate lead (Pb) nuclear cross sections, a series of integral experiments to measure lead void reactivity worths was conducted in a high-enriched uranium (HEU)/Pb system and a low-enriched ura...

Published
2017
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5. A Simple and Practical Correction Technique for Reactivity Worth of Short-Sized Samples Measured by Critical-Water-Level Method

Author

Masahiro Fukushima and Yasunori Kitamura

Subjects
Materials science, Nuclear Energy and Engineering, 010308 nuclear & particles physics, Simple (abstract algebra), 020209 energy, 0103 physical sciences, 0202 electrical engineering, electronic engineering, information engineering, Correction technique, Nuclear data, Reactivity (chemistry), 02 engineering and technology, Biological system, 01 natural sciences
Abstract

An inconsistency between the reactivity worth of short-sized samples measured by the critical-water-level (CWL) method and that conventionally analyzed for validating nuclear data and nuclear calcu...

Published
2017
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