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Measurements of neutron capture cross-sections for nuclides of interest in decommissioning; $$^{45}$$Sc, $$^{63}$$Cu, $$^{64}$$Zn, $$^{109}$$Ag, and $$^{113}$$In

Nakamura, Shoji  ; Shibahara, Yuji*; Endo, Shunsuke   ; Rovira Leveroni, G.   ; Kimura, Atsushi   

Neutron capture cross-sections of nuclides targeted for decommissioning are necessary to contribute to the evaluation of radioactivity produced. The present study, $$^{45}$$Sc, $$^{63}$$Cu, $$^{65}$$Zn, $$^{109}$$Ag and $$^{113}$$In nuclides were selected as target ones, and their thermal-neutron capture cross-sections were measured by an activation method at Kyoto University Research Reactor. The thermal-neutron capture cross-sections were obtained as follows: 27.18$$pm$$0.28 barn for $$^{45}$$Sc(n, $$gamma$$)$$^{46}$$Sc, 4.34$$pm$$0.06 barn for $$^{63}$$Cu(n, $$gamma$$)$$^{64}$$Cu, 0.719$$pm$$0.011 barn for $$^{64}$$Zn(n, $$gamma$$)$$^{65}$$Zn, 4.05$$pm$$0.05 barn for $$^{109}$$Ag(n, $$gamma$$)$$^{rm 110m}$$Ag and 8.53$$pm$$0.27 barn for $$^{113}$$In(n, $$gamma$$) $$^{114}$$In$$^{m1+m2}$$. The results for $$^{45}$$Sc and $$^{64}$$Zn nuclides supported evaluated values within the limits of uncertainties, while those for the other nuclides were slightly different from evaluated ones. The obtained results are useful not only for the evaluation of production amount, but also for the monitor selection other than Au and Co by considering those nuclides as flux monitors.

Language

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English

Journal

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Journal of Nuclear Science and Technology

Volume

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61

Number

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11

Pages

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p.1415 - 1430

Publication Year/Month

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2024/11

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Patent information

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Paper URL

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https://doi.org/10.1080/00223131.2024.2346347

DOI for research data

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Keywords

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thermal-neuron capture cross-section; decommissioning; activation method; Kyoto University Research Reactor; scandium-45; cupper-63; zinc-64; silver-109; indium-113

Research Facility

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Press Release

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Article of JAEA R&D Review

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Cooperating Institute

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京都大学複合原子力科学研究所

Accesses

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- Accesses

InCites™

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Percentile:62.55

Category:Nuclear Science & Technology

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