Partial photoneutron cross sections for the isomeric state 180Tam |
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Authors: | Goko S Utsunomiya H Goriely S Makinaga A Kaihori T Hohara S Akimune H Yamagata T Lui Y-W Toyokawa H Koning A J Hilaire S |
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Institution: | Department of Physics, Konan University, Higashinada, Kobe, Japan. |
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Abstract: | Photoneutron cross sections for (181)Ta(y, n) (180)Ta(m) were determined from simultaneous measurements of total cross sections (sigma(tot) and ground-state cross sections (sigma(gs)) for (180)Ta in photodisintegration of with laser Compton-backscattered rays. Techniques of direct neutron counting and photoactivation were used for the measurement of sigma(tot) and sigma(gs), respectively. The partial cross sections for the isomeric state serves as a novel probe of the nuclear level density of (180)Ta. Implications for the p- and s-process nucleosynthesis of (180)Ta(m) are given. |
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