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Measurement of the<sup>77</sup>Se(γ, n) cross section and uncertainty evaluation of the<sup>79</sup>Se(n, γ) cross section

F. KitataniJapan Atomic Energy Agency, 2-4 Shirane, Shirakata, Tokai-mura, Naka-gun, Ibaraki319-1195, JapanHideo HaradaJapan Atomic Energy Agency, 2-4 Shirane, Shirakata, Tokai-mura, Naka-gun, Ibaraki319-1195, JapanS. GokoJapan Atomic Energy Agency, 2-4 Shirane, Shirakata, Tokai-mura, Naka-gun, Ibaraki319-1195, JapanNobuyuki IwamotoJapan Atomic Energy Agency, 2-4 Shirane, Shirakata, Tokai-mura, Naka-gun, Ibaraki319-1195, JapanH. UtsunomiyaKonan University, 8-9-1 Okamoto, Higashinada, Kobe658-8501, JapanH. AkimuneKonan University, 8-9-1 Okamoto, Higashinada, Kobe658-8501, JapanH. ToyokawaNational Institute of Advanced Industrial Science and Technology, 1-1-1 Umezono, Tukuba-shi, Ibaraki, 305-8568, JapanKawakatsu YamadaNational Institute of Advanced Industrial Science and Technology, 1-1-1 Umezono, Tukuba-shi, Ibaraki, 305-8568, JapanM. IgashiraResearch Laboratory for Nuclear Reactors, Tokyo Institute of Technology, 2-12-1-N1-26 O-okayama, Meguro-ku, Tokyo 152-8550, Japan

2015en

ABI

Annotatsiya

The 77 Se ( , n) cross section was measured for the energy range from 7.6 to 13.8 MeV by using quasimonochromatic laser-Compton scattering -rays.The advanced method to deduce -ray strength functions from ( , n) cross section was developed.By utilizing the method, the -ray strength functions of 77, 78, 80 Se were deduced so as to reproduce the 77, 78, 80 Se ( , n) cross sections measured in this work and previous systematic measurements.The inverse (n, ) cross sections for 76, 77, 79 Se isotopes were calculated using the statistical model calculation code CCONE with the deduced -ray strength functions.The uncertainty of the calculated 79 Se(n, ) 80 Se cross section was evaluated by comparing the calculations and the experimental data on 76, 77 Se (n, ) cross sections.

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DOI: 10.1080/00223131.2015.1056760

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