MeV Cu离子辐照Ti， Fe， Ni和Cu厚靶的对称和近对称体系的k壳层x射线产生截面

IF 1.4 3区物理与天体物理 Q3 INSTRUMENTS & INSTRUMENTATION

Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms Pub Date : 2025-09-01 DOI:10.1016/j.nimb.2025.165833

J. Hussain , L.D. Yu , I. Ahmad , S. Ullah , U. Tippawan

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引用次数: 0

摘要

本研究旨在确定重Cu离子照射Ti、Fe、Ni和Cu形成对称和近对称体系（Z1 ~ Z2体系）的x射线产生截面（XPCSs）。cu离子能量范围从2 MeV到8 MeV (31 keV/u到125 keV/u)，将研究置于分子轨道（MO）方案区。在这些条件下获得的数据将允许在MeV重离子分析方面取得进展，特别是考虑到使用厚样本形式的综合数据的稀缺性。测量是基于Merzbacher-Lewis关系原理。观察到k壳层x射线峰的位移和展宽，特别是在离子能量较高的情况下，表明多重电离（MI）。测量的XPCSs与理论预测进行了比较，显示出与PWBA（平面波玻尔近似）预测更接近。基于PWBA，对MO、MI、电子捕获（EC）和平衡电荷态（ECS）效应进行了分析和讨论。

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K-shell X-ray production cross sections of symmetric and near-symmetric systems of MeV Cu-ion-irradiated Ti, Fe, Ni and Cu thick targets

This study aimed to determine the X-ray production cross sections (XPCSs) resulting from heavy Cu-ion irradiation of Ti, Fe, Ni, and Cu, forming symmetric and near-symmetric systems (Z₁ ∼ Z₂ systems). The Cu-ion energy ranged from 2 MeV to 8 MeV (31 keV/u to 125 keV/u), placing the study within the molecular orbital (MO) scheme zone. The data obtained under these conditions would allow for advancements in MeV heavy-ion analyses, particularly given the scarcity of comprehensive data using the thick sample formalism. The measurements were based on the Merzbacher-Lewis relation principle. Shifts and broadening of the K-shell X-ray peaks particularly at higher ion energy were observed, demonstrating multiple ionization (MI). The measured XPCSs were compared with theoretical predictions, showing generally closer alignments with the PWBA (plane wave Bohr approximation) predictions. Based on PWBA, MO, MI, electron capture (EC) and equilibrium charge state (ECS) effects were analyzed and discussed.

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来源期刊

Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms 物理-核科学技术

CiteScore

2.80

自引率

7.70%

发文量

231

审稿时长

1.9 months

期刊介绍： Section B of Nuclear Instruments and Methods in Physics Research covers all aspects of the interaction of energetic beams with atoms, molecules and aggregate forms of matter. This includes ion beam analysis and ion beam modification of materials as well as basic data of importance for these studies. Topics of general interest include: atomic collisions in solids, particle channelling, all aspects of collision cascades, the modification of materials by energetic beams, ion implantation, irradiation - induced changes in materials, the physics and chemistry of beam interactions and the analysis of materials by all forms of energetic radiation. Modification by ion, laser and electron beams for the study of electronic materials, metals, ceramics, insulators, polymers and other important and new materials systems are included. Related studies, such as the application of ion beam analysis to biological, archaeological and geological samples as well as applications to solve problems in planetary science are also welcome. Energetic beams of interest include atomic and molecular ions, neutrons, positrons and muons, plasmas directed at surfaces, electron and photon beams, including laser treated surfaces and studies of solids by photon radiation from rotating anodes, synchrotrons, etc. In addition, the interaction between various forms of radiation and radiation-induced deposition processes are relevant.