The isomeric cross-section ratio in double neutron capture of 93Nb |
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| Affiliation: | 1. Department of Physics, Savitribai Phule Pune University, Pune, 411007, India;2. Department of Physics, AKI''s Poona College, Camp, Pune, 411001, India;3. Nuclear Physics Division, Bhabha Atomic Research Centre, Mumbai, 400085, India;1. Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, MianYang, 621900, China;2. State Nuclear Power Plant Service Company, ShangHai, 200233, China;1. Radiochemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India;2. Department of Physics, Kyungpook National University, Daegu 41566, Republic of Korea |
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| Abstract: | The yields of 95Nb isomers were investigated by means of the double neutron capture of 93Nb target. The effective cross section of 94Nb(n,γ)95mNb and 94Nb(n,γ)95gNb reactions were found, by the activation method, to be 0.61 ± 0.03 barn and 14.6 ± 0.3 barn, respectively, with the choice of Wescott's epithermal index r√(T/T0) = 0.022. The observed isomeric cross section ratio of the reaction was compared with the theoretical prediction on the basis of the statistical model. As a result, the spin of the compound nucleus was assigned and the contribution of the quadrupole transition was deduced in the gamma cascade process. |
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