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論文

The $$gamma$$SF method

宇都宮 弘章*; Goriely, S.*; 秋宗 秀俊*; 山形 民穂*; 近藤 壮雄*; 岩本 ちひろ*; 岡本 明之*; 原田 秀郎; 北谷 文人; 後神 進史*; et al.

AIP Conference Proceedings 1377, p.255 - 259, 2011/10

 パーセンタイル:100

The $$gamma$$-ray strength function ($$gamma$$SF) interconnects radiative neutron capture and photoneutron emission as a common ingredient in the statistical model. Outlined here is an indirect method of determining radiative neutron-capture cross sections for unstable nuclei based on the $$gamma$$-ray strength function. Application examples of the $$gamma$$SF method are demonstrated.

論文

Photoneutron cross sections for Au

伊藤 修*; 宇都宮 弘章*; 秋宗 秀俊*; 山形 民穂*; 近藤 壮雄*; 鎌田 正輝*; 豊川 弘之*; 原田 秀郎; 北谷 文人; 後神 進史*; et al.

AIP Conference Proceedings 1377, p.362 - 364, 2011/10

 パーセンタイル:100

Photoneutron cross sections were measured for Au in the entire energy range of the ($$gamma$$,n) channel based on a direct neutron-counting technique with quasimonochromatic $$gamma$$ rays produced in inverse Compton-scattering of laser photons with relativistic electrons. We present results of the measurement in comparison with the past data.

論文

Application of the $$gamma$$SF method to palladium

宇都宮 弘章*; Goriely, S.*; Arteaga, D. P.*; Daoutidis, I.*; 秋宗 秀俊*; 山県 民穂*; 近藤 壮雄*; 岩本 ちひろ*; 鎌田 正輝*; 伊藤 修*; et al.

AIP Conference Proceedings 1377, p.450 - 452, 2011/10

 パーセンタイル:100

Photoneutron cross sections were measured for $$^{108}$$Pd, $$^{106}$$Pd, and $$^{105}$$Pd with laser-Compton scattering $$gamma$$-ray beams in an application of the $$gamma$$SF method to a radioactive nucleus $$^{107}$$Pd. We present radiative neutron cross sections for $$^{107}$$Pd [6.5$$times$$10$$^{6}$$ y] obtained with the $$gamma$$SF method.

論文

Striking behavior of photoneutron cross sections for $$^{90}$$Zr near threshold

宇都宮 弘章*; Goriely, S.*; 秋宗 秀俊*; 山形 民穂*; 近藤 壮雄*; 岩本 ちひろ*; 伊藤 修*; 鎌田 正輝*; 井尾 雅則*; 楠瀬 幸一*; et al.

AIP Conference Proceedings 1377, p.447 - 449, 2010/10

 パーセンタイル:100

Photoneutron cross sections for $$^{90}$$Zr near neutron threshold were examined with a photon difference technique using laser Compton scattering $$gamma$$-ray beams. The cross section decreasing in the vicinity of neutron threshold exhibited a steep rise within 150 keV above the threshold. We draw attention to a possible relation of this striking behavior to the 3P valence neutron resonance known in neutron capture in the mass region A $$approx$$ 90.

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