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

{"title":"Sm3+ ions doped titanium borate glasses: A study on structural, optical & radiation shielding properties","authors":"G. Dedeepya ,&nbsp;Sk. Mahamuda ,&nbsp;V. Balaji ,&nbsp;E.O. Echeweozo ,&nbsp;A.S. Rao ,&nbsp;M.S. Al-Buriahi","doi":"10.1016/j.nimb.2025.165792","DOIUrl":"10.1016/j.nimb.2025.165792","url":null,"abstract":"<div><div>Titanium Borate glasses with the composition 60B₂O₃-(20-x)BaF₂-15LiF-5TiO₂-xSm₂O₃ for various concentrations of Sm₂O₃ from 0.1 to 2.5 mol% were synthesized by conventional melt quenching method. Different spectroscopic investigations were conducted to elucidate the usefulness of the titled glasses for visible lasers and radioactive radiation shielding. The correlation of absorption spectral information with the PL spectral data (emission and decay) facilitates the estimation of various radiative properties. The<!--> <!-->covalent/ionic environment around the Sm³⁺ions was estimated using Judd-Ofelt (J-O) parameters. The key lasing parameters such as branching ratios, stimulated emission cross-section and quantum efficiencies were measured. The PL profiles recorded for the titled glasses show strong emission in reddish-orange visible region which is further confirmed by the measured CIE coordinates. A thorough theoretical investigation has also been conducted to understand the effective usages of the BaLTBSm glasses for radiative against fast neutrons and gamma rays. The gamma radiation shielding parameters, neutron attenuation and charged ions interaction properties were computed by adjusting the weight fraction of constituent elements in each of the glass samples using the densities. BaLTBSm25 glasses, especially those with higher Sm content, could be promising materials for radiation shielding applications especially in special electronic installations where sensitive components require maximum protection from gamma, neutron and charged particle interactions. The results show that BaLTBSm glasses can be used for optical and radiation shielding applications. All the aforementioned experimental as well as theoretical investigations carried on the titled glasses allows to contemplate the superior nature of BalTBSm10 and BaLTBSm25 glasses for visible reddish-orange photonic device and radiation sheilding applications.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"566 ","pages":"Article 165792"},"PeriodicalIF":1.4,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144653029","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}

{"title":"Experimental study of production of nuclei heavier than 65Cu in a copper target bombarded with 200 MeV/u 40Ar ions","authors":"Edil Mustafin ,&nbsp;Peter Katrik","doi":"10.1016/j.nimb.2025.165798","DOIUrl":"10.1016/j.nimb.2025.165798","url":null,"abstract":"<div><div>This study examines the production and distribution of gamma-emitting nuclei heavier than ⁶⁵Cu in a copper target irradiated with a 200 MeV/u ⁴⁰Ar ion beam. Gamma spectra revealed that the gamma-emitting nuclei with mass numbers from 67 to 101 were concentrated near the range of the 40Ar ions. The centroids of nuclide distributions were observed to shift deeper with increasing mass, aligning with the reduced kinetic energy of the ⁴⁰Ar ions near the end of their path. These results demonstrate that the measured profiles of induced heavy-nuclide activity can be used to estimate projectile range in the target.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"566 ","pages":"Article 165798"},"PeriodicalIF":1.4,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144653028","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}

{"title":"A multi-isotope compact AMS system at China institute of atomic energy","authors":"Ming He,&nbsp;Yiwen Bao,&nbsp;Qingzhang Zhao,&nbsp;Wenhui Zhang,&nbsp;Kangning Li,&nbsp;Shengyong Su,&nbsp;Qubo You,&nbsp;Chaoxin Kan,&nbsp;Pan Hu","doi":"10.1016/j.nimb.2025.165803","DOIUrl":"10.1016/j.nimb.2025.165803","url":null,"abstract":"<div><div>Following the trend of AMS instrument miniaturization, a compact multi-isotope AMS system for ¹⁴C, ²⁶Al, ²³⁶U, ^239,240Pu etc. has been developed at China Institute of Atomic Energy (CIAE). Using this self-developed compact AMS, the measurement methods of ¹²⁹I, ²³⁶U, and plutonium isotopes have been established. This system achieves transmission efficiencies of 46 % for ¹²⁹I and 30 % for actinides. The abundance sensitivity for ¹²⁹I reaches 1.5 × 10⁻¹⁴, the abundance sensitivity for ²³⁶U/²³⁸U is &lt; 2 × 10⁻¹⁴ and the detection limit for plutonium achieves 0.1 fg.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"566 ","pages":"Article 165803"},"PeriodicalIF":1.4,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144653030","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}

{"title":"On some unsettled half-lives of AMS radionuclides","authors":"Walter Kutschera ,&nbsp;Rugard Dressler ,&nbsp;Johannes Lachner ,&nbsp;Martin Martschini ,&nbsp;Michael Paul ,&nbsp;Dorothea Schumann ,&nbsp;Peter Steier ,&nbsp;Christof Vockenhuber ,&nbsp;Anton Wallner ,&nbsp;Alexander Wieser","doi":"10.1016/j.nimb.2025.165802","DOIUrl":"10.1016/j.nimb.2025.165802","url":null,"abstract":"<div><div>Half-lives ought to be accurate, and preferably precise as well. This contribution discusses cases of long-lived radionuclides used in measurements with accelerator mass spectrometry (AMS), where multiple half-life measurements on specific radionuclides do not agree within the stated uncertainties. This we call “unsettled” half-lives. We include also some cases where only very old half-life measurements (&gt;50 years ago) exist, sometimes only one single measurement. Half-life measurements of the following radionuclides are being discussed: ³²Si, ⁵³Mn, ⁵⁹Ni, ⁷⁹Se, ¹³⁵Cs, ¹⁴⁶Sm, and ²⁰⁹Po. These radionuclides are of interest for a variety of applications with AMS where accurate half-life values would be important.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"566 ","pages":"Article 165802"},"PeriodicalIF":1.4,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144653027","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}

{"title":"Structural and optical characterization of InN nanoparticles","authors":"Radouane GRAINE ,&nbsp;Rafik CHEMAM","doi":"10.1016/j.nimb.2025.165796","DOIUrl":"10.1016/j.nimb.2025.165796","url":null,"abstract":"<div><div>In this study, the formation of nanocrystals in a 206 nm thick layer of thermally grown SiO₂ on a Si &lt; 111 &gt; substrate was investigated in an average depth of approximately 100 nm. The nanocrystals were formed through sequential ion implantation of Indium and Nitrogen ions, with a high implantation dose of 5.2 × 10¹⁶ ions/cm², and multi-energy ion implantation to achieve flat concentration profiles of the implanted elements. Subsequent annealing treatments were carried out at 500 °C. This study provides insights into the formation of InN-related NCs in (SiO₂) and their luminescence characteristics by ion implantation, highlighting the annealing effects on the resulting optical properties. The analysis of the samples was carried out using different techniques, such as RBS, TEM for structural analysis and Photoluminescence (PL) by lamp and laser at room temperature and low temperature. Photoluminescence measurements showed band gap energy at 1.50 eV is related to the InN compound.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"566 ","pages":"Article 165796"},"PeriodicalIF":1.4,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144633069","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}

{"title":"Commissioning report on the fully configured 1 MV BNU-AMS system","authors":"Xiaolei Zhao ,&nbsp;Lin Liu ,&nbsp;Weijian Zhou ,&nbsp;Zhisheng An ,&nbsp;Qi Liu ,&nbsp;Hong Wang ,&nbsp;Tianhe Liu ,&nbsp;Xuke Liu ,&nbsp;Yunchong Fu ,&nbsp;M. Klein ,&nbsp;D.J.W. Mous ,&nbsp;G. Scognamiglio ,&nbsp;Xiuchen Wu ,&nbsp;Haoran Xu ,&nbsp;Jiaqi Zhao ,&nbsp;Zirun Zhang","doi":"10.1016/j.nimb.2025.165800","DOIUrl":"10.1016/j.nimb.2025.165800","url":null,"abstract":"<div><div>The 1 MV multi-element AMS system at Beijing Normal University, built by High Voltage Engineering Europa B.V., is now commissioned after some delay. This advanced 1 MV system is uniquely configured to accommodate low background analyses of all elements from tritium to actinides, including an additional detector line dedicated to beryllium ion detection with improved overall ion transmission efficiency. For the main detector line, both the low- and high-energy magnet chambers are electrically insulated so that a rapid sequential isotope selection mode can be used for measuring actinide isotopes at ∼ 1 Hz cycling rate. In this report, data covering ¹⁰Be, ¹⁴C, ²⁶Al, ⁴¹Ca, ¹²⁹I, ^239,240Pu and ²³⁶U from the recently completed on-site acceptance tests are presented. The initial experiences with routine radiocarbon analyses are also reported.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"566 ","pages":"Article 165800"},"PeriodicalIF":1.4,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144631184","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}

{"title":"Study of the 6Li(p,3He)4He reaction, in the low energy range, suitable for NRA purposes","authors":"E. Taimpiri ,&nbsp;A. Lagoyannis ,&nbsp;V. Foteinou ,&nbsp;F. Maragkos ,&nbsp;H.W. Becker ,&nbsp;M. Axiotis ,&nbsp;M. Kokkoris","doi":"10.1016/j.nimb.2025.165799","DOIUrl":"10.1016/j.nimb.2025.165799","url":null,"abstract":"<div><div>Differential cross sections of the ⁶Li(p,³He)⁴He reaction were determined at five detection angles (130° to 170°, with a 10° step), for proton energies ranging from 140 keV up to 1000 keV, with a variable energy step. For the cross-section measurements two different LiF targets were used, while for the detection of the backscattered particles, three Silicon Surface Barrier (SSB) detectors were placed at the angles of 130°, 140° and 160° and two Passivated Implanted Planar Silicon (PIPS) detectors at 150° and 170°. Independent benchmarking experiments were also performed, in order to validate the differential cross sections of this work. The obtained results are compared with existing ones available in the literature. The measured values of this work are found to be in good agreement with some existing data from the literature. However, important discrepancies with other datasets were observed, in several energy regions.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"566 ","pages":"Article 165799"},"PeriodicalIF":1.4,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144631185","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}

{"title":"Characterization of thin crystals by rainbow scattering effect","authors":"Nikola S. Starčević,&nbsp;Srđan M. Petrović","doi":"10.1016/j.nimb.2025.165790","DOIUrl":"10.1016/j.nimb.2025.165790","url":null,"abstract":"<div><div>This study presents novel approach to characterizing very thin crystals using the theory of rainbow scattering in channeling mode, a technique that hasn’t been previously applied for this purpose. We explore potential of this approach for detailed analysis of crystal structures and properties. For characterization of very thin crystals, we employed numerical simulation methods to model and analyze rainbow scattering in channeling mode. Simulations were designed to predict the scattering patterns of protons channeled through cubic crystals in different orientations and structural configurations. This framework enabled us to generate detailed predictions regarding how various parameters influence proton scattering behavior. The integration of numerical simulations revealed distinct rainbow scattering patterns, offering valuable insights into the internal structures and orientations of analyzed crystals. Rainbow scattering in channeling mode with numerical simulation methods introduces a novel and effective technique for characterization of very thin crystals, while laying the groundwork for future experimental analysis.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"566 ","pages":"Article 165790"},"PeriodicalIF":1.4,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144631183","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}

{"title":"Evaluation of gamma- and neutron radiation emissions during proton irradiation of typical metals in semiconductor manufacturing","authors":"Andrea Fugger ,&nbsp;Moriz Jelinek ,&nbsp;Markus Valtiner","doi":"10.1016/j.nimb.2025.165777","DOIUrl":"10.1016/j.nimb.2025.165777","url":null,"abstract":"<div><div>Proton implantation has multiple uses in semiconductor manufacturing. Implanting through metallization can create problems in terms of radiation safety. Gamma and neutron emissions for proton irradiated stacks of Ti, TiN, W, AlCu, Si, Co with incident proton energies of 1<!--> <!-->MeV to 2<!--> <!-->MeV were measured. The most intense gamma lines resulted from Al, Si, F and Ti. Despite being present in trace amounts, F was found to contribute significantly to the gamma emission. Our results indicate a need for new metallization concepts to be used together with proton implantation.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"566 ","pages":"Article 165777"},"PeriodicalIF":1.4,"publicationDate":"2025-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144604440","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}

{"title":"Application of 7Li(p, α)4He NRA for thin film type all-solid-state Li battery; reinvestigation of 7Li(p, α)4He cross-section and optimization of experimental arrangement","authors":"N. Kishi ,&nbsp;S. Shinohara ,&nbsp;Y. Sugisawa ,&nbsp;K. Yamamoto ,&nbsp;S. Kobayashi ,&nbsp;R. Shimizu ,&nbsp;T. Hitosugi ,&nbsp;D. Sekiba","doi":"10.1016/j.nimb.2025.165787","DOIUrl":"10.1016/j.nimb.2025.165787","url":null,"abstract":"<div><div>The ⁷Li(p, α)⁴He reaction is used to observe the Li behavior during the discharge and recharge process in the thin-film-type all-solid-state Li battery. The incident proton beam energy used in this nuclear reaction analysis (NRA) was set at 1.5 MeV. The emitted α-particle in NRA and backscattered proton in Rutherford backscattering spectrometry (RBS) were detected by the same silicon surface detector (SSD) simultaneously. First of all, the cross sections of ⁷Li(p, α)⁴He for the proton energies between 1.0 and 1.5 MeV were experimentally determined in order to make quantitative analyses. Next, the emission angle of the α-particle with respect to the surface normal was explored to determine the optimum angle to distinguish the layers in the battery sample. By using the obtained cross-sections and optimized emission angle, the ⁷Li NRA profiles on the battery sample at the charged state and discharged state were taken. The Li migration in the battery due to these processes was clearly observed. The results implied that whole the electrolyte seemed to play the role of both the electrolyte and the anode.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"566 ","pages":"Article 165787"},"PeriodicalIF":1.4,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144597208","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}