在 LUE-40 LINAC RDC "加速器 "NSC KIPT 上研究光核实验中的异构体比率

IF 0.5 Q4 PHYSICS, NUCLEAR

Problems of Atomic Science and Technology Pub Date : 2023-11-06 DOI:10.46813/2023-148-008

I. S. Timchenko, O. S. Deiev, S. Olejnik, S. Potin, V. Kushnir, V. Mytrochenko, S. Perezhogin

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引用次数: 0

摘要

系统分析了在轫致辐射端点能量范围 30...100 MeV 下，从 Zr 到 Ta 的原子核上发生的 (γ,xn) 和 (γ,pxn) 反应产生的异构体对的光生成结果。测量是在 LUE-40 直列加速器 RDC "加速器 "NSC KIPT 的电子束中进行的，采用的是活化法和离线 γ 射线光谱技术。使用 TALYS1.95 代码中的截面 σ(E)，针对六种不同的水平密度模型，计算了所研究反应的核反应产物的理论异构体比 IR。此外，还使用了国际数据库中的数据来比较实验结果和理论预测。根据所获得的结果，我们可以对所研究的光核反应中红外值的趋势和能量依赖性做出结论。还讨论了在 RDC "加速器 "NSC KIPT 进行实验研究的进一步方向。

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STUDY THE ISOMERIC RATIOS IN PHOTONUCLEAR EXPERIMENTS ON THE LUE-40 LINAC RDC “ACCELERATOR” NSC KIPT

The results of photoproduction of isomeric pairs from the (γ,xn) and (γ,pxn) reactions on nuclei from Zr up to Ta at the bremsstrahlung end-point energy range 30…100 MeV are systematized. Measurements were performed at the electron beam of the LUE-40 linac RDC “Accelerator” NSC KIPT using the activation method and off-line γ-ray spectrometric technique. The theoretical isomeric ratios IR for the nuclei-products of studied reactions were calculated using the cross-sections σ(E) from the TALYS1.95 code for six different level density models. The data from the international databases were additionally used to compare experimental results and theoretical predictions. The obtained results let us make conclusions about trends of values and energy dependence of IR in studied photonuclear reactions. Further directions of experimental research in the RDC “Accelerator” NSC KIPT are discussed.

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来源期刊

Problems of Atomic Science and Technology 物理-核科学技术

CiteScore

0.70

自引率

50.00%

发文量

审稿时长

2-4 weeks

期刊介绍： The journal covers the following topics: Physics of Radiation Effects and Radiation Materials Science; Nuclear Physics Investigations; Plasma Physics; Vacuum, Pure Materials and Superconductors; Plasma Electronics and New Methods of Acceleration.