Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms最新文献

Cluster ion beam irradiation at low energy and surface pattern formation

IF 1.4 3区物理与天体物理

Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms Pub Date : 2025-04-04 DOI: 10.1016/j.nimb.2025.165707

J.C. Jiménez-Sáez , S. Muñoz , P. Palacios

{"title":"Cluster ion beam irradiation at low energy and surface pattern formation","authors":"J.C. Jiménez-Sáez , S. Muñoz , P. Palacios","doi":"10.1016/j.nimb.2025.165707","DOIUrl":"10.1016/j.nimb.2025.165707","url":null,"abstract":"<div><div>Ion beam sputtering is a solid-surface nanostructuring procedure. In this work, we are interested in studying the formation of surface patterns during this process. To do this, a Cobalt metal surface is bombarded with clusters at oblique incidence. Cluster bombardment is used since clusters accentuate the effect of surface ripple formation. Two processes explain the effect of pattern formation at the collisional level when diffusion phenomena can be neglected, namely sputtering and atomic redistribution. In the present work, the effect of the energy of the cluster atoms and the surface orientation on the above processes and, therefore, on the surface pattern formation, are analyzed. In the case of energy, it is found that this represents an additional excitation to the formation of patterns. Therefore, if it increases, the surface irregularities increase in turn. However, the specific weight of the processes that support the process is maintained. On the contrary, the crystallographic structure can affect this specific weight. In fact, the formation of patterns on the (100) surface is justified by sputtering regardless of the angle of incidence.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"563 ","pages":"Article 165707"},"PeriodicalIF":1.4,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143767649","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Critical re-evaluation of recommended excitation functions of 7 reactions for 61Cu formation

IF 1.4 3区物理与天体物理

Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms Pub Date : 2025-04-01 DOI: 10.1016/j.nimb.2025.165690

A. Hermanne , F. Tárkányi , A.V. Ignatyuk , S. Takács , R. Capote

{"title":"Critical re-evaluation of recommended excitation functions of 7 reactions for 61Cu formation","authors":"A. Hermanne , F. Tárkányi , A.V. Ignatyuk , S. Takács , R. Capote","doi":"10.1016/j.nimb.2025.165690","DOIUrl":"10.1016/j.nimb.2025.165690","url":null,"abstract":"<div><div>Re-evaluation of recommended cross sections for seven production reactions for the short-lived β<sup>+</sup>-emitting radionuclide ⁶<sup>1</sup>Cu included in the on-line IAEA database for medical applications (Monitor Reactions and Positron Emitters) was performed. One of those reactions is recommended as a deuteron beam monitor reaction: <sup>nat</sup>Ni(d,x)<sup>61</sup>Cu. The re-evaluation included recently published data as well as thoroughly analyzed earlier works available in EXFOR. Where possible, published cross sections were corrected for new nuclear decay data, especially γ-ray abundance or β<sup>+</sup> intensity adopted in NUDAT3.0/ENSDF2020. New recommended cross section values and their uncertainties were derived from the Padé fit of the selected data. Relevant data were subjected to correction based on the recently measured ratio of the two dominant γ-rays of ⁶<sup>1</sup>Cu by Bleuel; an additional Padé fit was performed. Changes up to 20 % of the recommended monitor reaction for deuterons are observed in the 7–10 MeV of incident deuteron energy. Comparison with results of the on-line available TALYS-code calculations is provided and discussed.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"563 ","pages":"Article 165690"},"PeriodicalIF":1.4,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143738995","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

X-ray production cross sections of thick Cu and Au targets induced by MeV Cq+ ions

IF 1.4 3区物理与天体物理

Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms Pub Date : 2025-03-28 DOI: 10.1016/j.nimb.2025.165687

J. Hussain , L.D. Yu , I. Ahmad , T. Ali , S. Ullah , M. Shahid , U. Tippawan

引用次数: 0

Performance evaluation of the SPES FEBIAD ion source

IF 1.4 3区物理与天体物理

Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms Pub Date : 2025-03-25 DOI: 10.1016/j.nimb.2025.165688

A. Monetti , M. Manzolaro , D.W. Stracener , A. Andrighetto , M. Ballan , L. Centofante , S. Corradetti , O.S. Khwairakpam , G. Lilli , D. Scarpa , J. Ballof , B. Crepieux , M. Owen , S. Rothe

{"title":"Performance evaluation of the SPES FEBIAD ion source","authors":"A. Monetti , M. Manzolaro , D.W. Stracener , A. Andrighetto , M. Ballan , L. Centofante , S. Corradetti , O.S. Khwairakpam , G. Lilli , D. Scarpa , J. Ballof , B. Crepieux , M. Owen , S. Rothe","doi":"10.1016/j.nimb.2025.165688","DOIUrl":"10.1016/j.nimb.2025.165688","url":null,"abstract":"<div><div>SPES (Selective Production of Exotic Species) is the Radioactive Ion Beam (RIB) facility that is currently in the installation phase at the Istituto Nazionale di Fisica Nucleare in the Laboratori Nazionali di Legnaro (LNL-INFN). The main purpose of the facility is to deliver neutron-rich radioactive beams with a range of mass between 60 and 160 amu produced as fission products originated within a Uranium Carbide (UC<sub>x</sub>) target impinged by high energy protons (40–70 MeV). In the last few years, the SPES group and their collaborators have focused on multiple aspects: development of various ISOL targets, ion sources, a high-power beam dump, versatile Front-End designs, primary proton beam and RIB diagnostics, design of beam optic components, and remote target handling. The development and optimization of ionization sources represents one of the most important R&D activities. The collaboration between SPES and ISOLDE (CERN) groups has enabled the evaluation of the performances of a novel FEBIAD ion source taking advantage of the ISOLDE off-line Front-End. In this paper, the results of efficiency and transversal emittance measurements of the new SPES FEBIAD ion source are presented and discussed. Particular attention is dedicated to the description of the experimental setup and to the comparison of experimental data with simulation to promote the reproducibility of the experimental tests with other types of sources.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"563 ","pages":"Article 165688"},"PeriodicalIF":1.4,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143696091","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Semi-empirical calculation of K to Li sub-shell, K to L, and M shell vacancy transfer probability for elements in the atomic range 16 ≤ Z ≤ 92

IF 1.4 3区物理与天体物理

Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms Pub Date : 2025-03-24 DOI: 10.1016/j.nimb.2025.165689

B. Berkani , A. Kahoul , J.M. Sampaio , S. Daoudi , J.P. Marques , F. Parente , A. Hamidani , S. Croft , A. Favalli , Y. Kasri , A. Zidi , K. Amari

引用次数: 0

Four-step evaluation and systematic assessment of various containers for radioactive source transportation purposes

IF 1.4 3区物理与天体物理

Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms Pub Date : 2025-03-14 DOI: 10.1016/j.nimb.2025.165683

H.O. Tekin , Ghada ALMisned , G. Kilic , Gulfem Susoy , Wiam Elshami , Duygu Sen Baykal , Bashar Issa

{"title":"Four-step evaluation and systematic assessment of various containers for radioactive source transportation purposes","authors":"H.O. Tekin , Ghada ALMisned , G. Kilic , Gulfem Susoy , Wiam Elshami , Duygu Sen Baykal , Bashar Issa","doi":"10.1016/j.nimb.2025.165683","DOIUrl":"10.1016/j.nimb.2025.165683","url":null,"abstract":"<div><div>The multifunctional La<sub>2</sub>O<sub>3</sub>-TiO<sub>2</sub>-Nb<sub>2</sub>O<sub>5</sub>-B<sub>2</sub>O<sub>3</sub> glass system was evaluated for its gamma-ray and neutron shielding capabilities, focusing on its potential use as transparent containers for radioactive isotope transport. Critical shielding parameters, including linear attenuation coefficients, half-value layers, equivalent atomic numbers, and transmission factors, were analyzed using Monte Carlo simulations and other computational methods. Among the investigated samples, the 16Nb2B glass exhibited exceptional performance, with an LAC of 7.0613 cm<sup>−1</sup> at 0.01 MeV, outperforming the 40La14B glass by 29 %. Its HVL was as low as 0.003 cm at 0.015 MeV and 1.725 cm at 0.662 MeV, marking a considerable reduction compared to steel-magnetite concrete. Moreover, the deposited energy in the air surrounding 16Nb2B was 1.18 × 10<sup>-4</sup> MeV/g, reflecting reductions of 59.9 % and 56.1 % compared to Boron Carbide and cement-bitumen mixtures, respectively. The TF values for 16Nb2B consistently showed superior attenuation, with reductions of 6.6 % at 3.0 cm thickness and 0.662 MeV compared to steel-magnetite concrete. It can be concluded that the 16Nb2B glass not only provides outstanding optical transparency properties but also provides better radiation shielding properties, making it a promising candidate for applications in medical imaging, nuclear facilities, and radioactive material transport.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"563 ","pages":"Article 165683"},"PeriodicalIF":1.4,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143620372","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of irradiation on the evolution of radiation defects in nanocrystalline FCC metals: The case of Ni

IF 1.4 3区物理与天体物理

Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms Pub Date : 2025-03-14 DOI: 10.1016/j.nimb.2025.165674

Yu.S. Bilogorodskyy , A.S. Shirinyan , O.M. Krit

{"title":"Influence of irradiation on the evolution of radiation defects in nanocrystalline FCC metals: The case of Ni","authors":"Yu.S. Bilogorodskyy , A.S. Shirinyan , O.M. Krit","doi":"10.1016/j.nimb.2025.165674","DOIUrl":"10.1016/j.nimb.2025.165674","url":null,"abstract":"<div><div>Radiation damage in materials is accompanied by generation of defects. One promising approach for describing the evolution of defects involves using chemical rate theory. We aim to study the influence of irradiation and external conditions on the evolution of radiation point defects in nanocrystalline fcc metals. We used nanocrystalline nickel for which we know the parameters as a model fcc metal. The approach can be applied to nanoparticles as well. By solving the non-stationary equations, possible dependencies of defect concentrations on irradiation time, dose, temperature and nanoparticle size have been established. It was found that there are situations where the defect concentration increases with increasing grain (or particle) size, does not depend on size, is nonmonotonic with maximum, or decreases with an inverse dependence on size. This variability is ensured by the intensity of defect interactions at external boundaries, recombinations inside the grain (particle), temperature, time (dose), and irradiation regimes.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"563 ","pages":"Article 165674"},"PeriodicalIF":1.4,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143620371","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Measurement of activation cross section of alpha-particle induced nuclear reactions on dysprosium

IF 1.4 3区物理与天体物理

Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms Pub Date : 2025-03-13 DOI: 10.1016/j.nimb.2025.165670

S. Takács , F. Ditrói , Z. Szűcs , M. Aikawa , H. Haba , S. Usuda , S. Ebata

引用次数: 0

Convolutional neural networks for reconstruction of neutron tomography from incomplete data

IF 1.4 3区物理与天体物理

Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms Pub Date : 2025-03-12 DOI: 10.1016/j.nimb.2025.165682

Bulat Bakirov , Sergey E. Kichanov , Denis P. Kozlenko

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Different widths of resonant lines in the Mössbuaer spectrum as the result of multidimensional Gaussian distribution

IF 1.4 3区物理与天体物理

Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms Pub Date : 2025-03-07 DOI: 10.1016/j.nimb.2025.165669

Sergey Yaroslavtsev

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