235U 外镉中子诱发裂变中裂变产物的独立异构产率。

IF 1.6 3区工程技术 Q3 CHEMISTRY, INORGANIC & NUCLEAR

Applied Radiation and Isotopes Pub Date : 2024-10-01 DOI:10.1016/j.apradiso.2024.111536

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引用次数: 0

摘要

在 235U 的环镉中子诱发裂变中，利用离线伽马射线光谱技术测量了裂变产物 130、132Sb、131、133Te、134、136I、135Xe 和 138Cs 的独立异构体产率（IR）。表镉反应堆中子谱的平均中子能量为 1.9 MeV。通过自旋相关统计模型分析，从红外值推导出了均方根碎片角矩（JRMS）。将表镉中子诱导 235U 裂变所考虑的裂变产物的红外值和 JRMS 值与热中子诱导 235U 裂变的文献数据进行了比较，以研究激发能对核结构效应的影响。

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Independent isomeric yield ratios of fission products in the epi-cadmium neutron induced fission of 235U

In the epi-cadmium neutron induced fission of ²³⁵U, independent isomeric yield ratios (IR) of fission products ^130,132Sb, ^131,133Te, ^134,136I, ¹³⁵Xe and ¹³⁸Cs 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_RMS) were deduced by using spin dependent statistical model analysis. The IR and J_RMS values of considered fission products in the epi-cadmium neutron induced fission of ²³⁵U were compared with the literature data in the thermal neutron induced fission of ²³⁵U to examine the influence of excitation energy on nuclear structure effect.

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来源期刊

Applied Radiation and Isotopes 工程技术-核科学技术

CiteScore

3.00

自引率

12.50%

发文量

406

审稿时长

13.5 months

期刊介绍： Applied Radiation and Isotopes provides a high quality medium for the publication of substantial, original and scientific and technological papers on the development and peaceful application of nuclear, radiation and radionuclide techniques in chemistry, physics, biochemistry, biology, medicine, security, engineering and in the earth, planetary and environmental sciences, all including dosimetry. Nuclear techniques are defined in the broadest sense and both experimental and theoretical papers are welcome. They include the development and use of α- and β-particles, X-rays and γ-rays, neutrons and other nuclear particles and radiations from all sources, including radionuclides, synchrotron sources, cyclotrons and reactors and from the natural environment. The journal aims to publish papers with significance to an international audience, containing substantial novelty and scientific impact. The Editors reserve the rights to reject, with or without external review, papers that do not meet these criteria. Papers dealing with radiation processing, i.e., where radiation is used to bring about a biological, chemical or physical change in a material, should be directed to our sister journal Radiation Physics and Chemistry.