Neutron resonance parameters of tungsten-183 up to 1.1 keV.

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概要

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• Neutron transmission, scattering and capture experiments on the separated isotope <SUP>183</SUP>W were carried out in the resonance region, using a time-of-flight spectrometer of the Japan Atomic Energy Research Institute linear accelerator. A <SUP>6</SUP>Li-glass and a <SUP>7</SUP>Li-glass detectors were used in pair-wise to determine the spins by detecting scattered neutrons and capture γ-rays. Resonance parameters E and 2gΓ<SUB>n</SUB> were deduced up to 1.1 keV by analyzing the transmission data. Average level spacing <D> and s-wave strength function S<SUB>0</SUB> were derived to be <D>=13.3±1 eV, S<SUB>0</SUB>= (1.24±0.22)×10<SUP>-4</SUP> below 1.1 keV. Spins of 41 resonances were determined up to 900 eV from the capture and scattering experiments. The result on spin values supports the (2J+1) law on level density. The dependence of Γ<SUB>γ</SUB> on spin values is inferred. Frequent appearence of spacing of 173 eV between two arbitrary levels is discussed.

• 一般社団法人 日本原子力学会の論文

著者

• KAWARASAKI Yuuki

  Linac Laboratory, Japan Atomic Energy Research Institute

• KAWARASAKI Yuuki

  Linac Loboratory, Japan Atomic Energy Research Institute

• OHKUBO Makio

  Linac Laboratory, Japan Atomic Energy Research Institute

関連論文

• Neutron resonance parameters of rubidium-85 and rubidium-87.
• Neutron resonance parameters of tungsten-183 up to 1.1 keV.

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