Naik H, Singh R J, Dange S P, Jang W
Radiochemistry Division, Bhabha Atomic Research Centre, Mumbai, 400 085, India.
Department of Physics, Kyungpook National University, Daegu, 41566, South Korea.
Appl Radiat Isot. 2024 Dec;214:111536. doi: 10.1016/j.apradiso.2024.111536. Epub 2024 Oct 1.
In the epi-cadmium neutron induced fission of U, independent isomeric yield ratios (IR) of fission products Sb, Te, I, Xe and Cs have been measured by using an off-line gamma-ray spectrometric technique. The average neutron energy of the epi-cadmium reactor neutron spectrum is 1.9 MeV. From the IR values, the root mean square fragment angular momenta (J) were deduced by using spin dependent statistical model analysis. The IR and J values of considered fission products in the epi-cadmium neutron induced fission of U were compared with the literature data in the thermal neutron induced fission of U to examine the influence of excitation energy on nuclear structure effect.
在超镉中子诱发的铀裂变中，利用离线伽马射线能谱技术测量了裂变产物锑、碲、碘、氙和铯的独立异构体产额比（IR）。超镉反应堆中子谱的平均中子能量为1.9兆电子伏。根据IR值，通过自旋相关统计模型分析推导出均方根碎片角动量（J）。将超镉中子诱发的铀裂变中所考虑的裂变产物的IR和J值与热中子诱发的铀裂变的文献数据进行比较，以研究激发能对核结构效应的影响。
