Resonance parameters of tantalum-181 in neutron energy range from 100 to 4,300eV.
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概要
- 論文の詳細を見る
Neutron transmission measurements were performed on natural tantalum (abundance ratio 99.988% for <SUP>181</SUP>Ta) in the energy range of 1004, 300 eV using the Japan Atomic Energy Research Institute linac. The transmissions were measured using 55 and 190 m time-of-flight spectrometers for two and three samples of different thicknesses, respectively. These transmission data were simultaneously analyzed with a least squares fitting program based on a multi-level Breit-Wigner formula, and resonance energies and neutron width were obtained for 696 resonances of <SUP>181</SUP>Ta.<BR>The statistical analysis of these parameters gave the s-wave average level spacing of <D>.= 4.10 ± 0.14 eV and s-wave neutron strength functions of (1.67 ± 0.13)× 10<SUP>-4</SUP>, (1.09 ± 0.09)×10<SUP>-4</SUP> and (1.42 ± 0.20)×10<SUP>-4</SUP> for the energy intervals from 100 1, 700 eV, 1, 7003, 400 eV and 3, 400 4, 300 eV, respectively. This significant difference among the neutron strength function for each energy interval is a prominent result of the present experiments and is of great interest.
- 一般社団法人 日本原子力学会の論文
著者
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Kanda Yukinori
Department Of Energy Conversion Engineering Kyushu University
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Nakajima Yutaka
Department Of Human Pathology Tokyo Medical And Dental University
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TSUBONE Izumi
Department of Physics Japan Atomic Energy Research Institute
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NAKAJIMA Yutaka
Department of Physics Japan Atomic Energy Research Institute
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