{"title":"L-shell X-ray production cross sections in some lanthanoids induced by He+ ions","authors":"Felix S. Olise, Adedamola D. Aladese","doi":"10.1016/j.nimb.2025.165693","DOIUrl":null,"url":null,"abstract":"<div><div>For some relevant applications, the inner-shell process involving interactions between ions and atoms has been widely investigated. In this study, L-shell X-ray production cross sections of industrially important lanthanoids, induced by helium of energies <span><math><mrow><mn>0</mn><mo>.</mo><mn>2</mn><mspace></mspace><mi>MeV</mi></mrow></math></span> to <span><math><mrow><mn>3</mn><mo>.</mo><mn>0</mn><mspace></mspace><mi>MeV</mi></mrow></math></span>, have been calculated. At first, the ionization cross sections for the targets were obtained using the ISICS code and ERCS08 computer program based on ECPSSR-UA and PWBA+OBKN theories, respectively. The calculated ionization cross sections were then converted to X-ray production cross sections. Also, the role of multi-ionization from the outer shells was considered in view of the uncertainty arising from the atomic parameters. The derived X-ray production cross sections were compared with existing experimental data and validated at the same helium ions probing energy range. We have also compared the predicted cross sections from both theories.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"563 ","pages":"Article 165693"},"PeriodicalIF":1.4000,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0168583X25000837","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"INSTRUMENTS & INSTRUMENTATION","Score":null,"Total":0}
引用次数: 0
Abstract
For some relevant applications, the inner-shell process involving interactions between ions and atoms has been widely investigated. In this study, L-shell X-ray production cross sections of industrially important lanthanoids, induced by helium of energies to , have been calculated. At first, the ionization cross sections for the targets were obtained using the ISICS code and ERCS08 computer program based on ECPSSR-UA and PWBA+OBKN theories, respectively. The calculated ionization cross sections were then converted to X-ray production cross sections. Also, the role of multi-ionization from the outer shells was considered in view of the uncertainty arising from the atomic parameters. The derived X-ray production cross sections were compared with existing experimental data and validated at the same helium ions probing energy range. We have also compared the predicted cross sections from both theories.
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.