Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms最新文献_第2页

Concept for a Cesium-Free negative ion source based on microwave heating of a low work function granular material 基于微波加热低功函数颗粒材料的无铯负离子源的概念

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 : 2025-09-16 DOI: 10.1016/j.nimb.2025.165863

Akihiro Matsubara , Yoko Saito-Kokubu , Kazuhisa Nishio , Kenji Kimura , Keiichiro Kashimura , Koji Shimada , Natsuko Fujita

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Elucidating elemental mapping and their concentration correlation in unfixed aged leaves of Hibiscus Rosa-Sinensis and Azadirachta Indica 木槿和印楝未固定老化叶片中元素定位及其浓度相关性研究

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 : 2025-09-16 DOI: 10.1016/j.nimb.2025.165868

Darshpreet Kaur Saini, Todd A. Byers, Cory Nook, Mohin Sharma, Mritunjaya Parashar, Charles T. Bowen, Gary A. Glass, Bibhudutta Rout

{"title":"Elucidating elemental mapping and their concentration correlation in unfixed aged leaves of Hibiscus Rosa-Sinensis and Azadirachta Indica","authors":"Darshpreet Kaur Saini, Todd A. Byers, Cory Nook, Mohin Sharma, Mritunjaya Parashar, Charles T. Bowen, Gary A. Glass, Bibhudutta Rout","doi":"10.1016/j.nimb.2025.165868","DOIUrl":"10.1016/j.nimb.2025.165868","url":null,"abstract":"<div><div>Particle Induced X-Ray Emission Spectroscopy (PIXE) using scanning proton microbeam was used to investigate elemental concentration mapping and the correlation between the concentration of macro and micro-elements at significant regions of interest in Hibiscus (<em>Hibiscus rosa-sinensis</em>) and Neem (<em>Azadirachta indica</em>) leaves. These plants are widely studied medicinal plants used for their healing properties in both traditional and modern practices. The detected elements in all leaves included macro-elements such as Al, Si, P, S, Cl, K, and Ca, as well as micro-elements like Sc, Ti, Mn, Fe, Co, Ni, Cu, and Zn. A focused study on the different color leaves of the hibiscus was carried out to distinguish between the distribution of elements with aging. Aged hibiscus leaf was also found to accumulate heavier elements such as S, Cl, and Ca and be deficient in Fe, leading to toxicity and yellowing. Moreover, an aged neem leaf showed high amounts of Si, K, Ca, and Fe, showing good retention of elements even with low cellular processes and nutritional transport.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"568 ","pages":"Article 165868"},"PeriodicalIF":1.4,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145099357","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}

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In situ investigations of swift heavy ion irradiation effects: Luminescence of Al2O3 by swift heavy ions 快速重离子辐照效应的原位研究：快速重离子对Al2O3的发光

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 : 2025-09-16 DOI: 10.1016/j.nimb.2025.165867

Q.M. Xu , J. Gou , C.H. Zhang , Y.Y. Wang , Y. Song , K.K. Ding , Y.P. Guo

{"title":"In situ investigations of swift heavy ion irradiation effects: Luminescence of Al2O3 by swift heavy ions","authors":"Q.M. Xu , J. Gou , C.H. Zhang , Y.Y. Wang , Y. Song , K.K. Ding , Y.P. Guo","doi":"10.1016/j.nimb.2025.165867","DOIUrl":"10.1016/j.nimb.2025.165867","url":null,"abstract":"<div><div>The results of in situ investigations of the luminescence of a single crystal of Alumina (Al<sub>2</sub>O<sub>3</sub>) during irradiation by the ions 93, 245, 425, and 609 MeV Xe<sup>q+</sup> are presented. The spectra are measured at room temperature in the wavelength range of 200–800 nm. The threshold value of electronic stopping power (S<sub>e</sub>) for luminescence in Al<sub>2</sub>O<sub>3</sub> is estimated to be about 18.3 keV/nm. In the spectra, the observed bands at 336 nm, 380–413 nm, and 658 nm are attributed to the F<sup>+</sup> center, F center, and the 2nd order peak of the F<sup>+</sup> center and complex F<sub>n</sub> center, respectively. It indicates that the F<sup>+</sup> center monotonically increases with increasing ion energy. However, it first increases and then decreases with the irradiation dose. The suppression of F center emission with increasing ion energy and dose is discussed. They may indicate that the luminescence is related to the structural damage by swift heavy ions, which is possibly a good parameter for online monitoring of irradiation damage.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"568 ","pages":"Article 165867"},"PeriodicalIF":1.4,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145099354","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

Proton irradiation-induced dark current in 4T CMOS active pixel sensor: Experiment and modeling 4T CMOS有源像素传感器中质子辐照诱导暗电流：实验与建模

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 : 2025-09-13 DOI: 10.1016/j.nimb.2025.165861

Fang Liu, Tao Wang, Huan He, Zhigang Peng, Pei Li, Tan Shi, Pingan Zhou, Chuanhao Chen, Chaohui He, Hang Zang

{"title":"Proton irradiation-induced dark current in 4T CMOS active pixel sensor: Experiment and modeling","authors":"Fang Liu, Tao Wang, Huan He, Zhigang Peng, Pei Li, Tan Shi, Pingan Zhou, Chuanhao Chen, Chaohui He, Hang Zang","doi":"10.1016/j.nimb.2025.165861","DOIUrl":"10.1016/j.nimb.2025.165861","url":null,"abstract":"<div><div>The investigation of displacement damage mechanisms in CMOS image sensors (CISs) is important for enhancing radiation hardness. In this paper, the generation and annealing effects of irradiation induced dark current are investigated through the combined proton irradiation and a multiscale simulation model. A 0.13-μm CMOS image sensor was irradiated with 12 MeV protons at fluences ranging from <span><math><mrow><msup><mrow><mn>1</mn><mo>×</mo><mn>10</mn></mrow><mn>11</mn></msup></mrow></math></span> cm<sup>−2</sup> to <span><math><mrow><msup><mrow><mn>2</mn><mo>×</mo><mn>10</mn></mrow><mn>12</mn></msup></mrow></math></span> cm<sup>−2</sup>. Experimental results on dark current distributions highlight the combined effect of ionization damage and displacement damage after proton irradiation. A reduction of approximately 40 % in the mean dark current was observed during the initial three days of room temperature annealing. The kinetic Monte Carlo (KMC) simulation results indicate that the observed changes in dark current after prolonged annealing may be associated with a reduction of divacancies. These results are highly valuable for understanding the key mechanisms of the displacement damage and predicting performance degradation of irradiated CISs.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"568 ","pages":"Article 165861"},"PeriodicalIF":1.4,"publicationDate":"2025-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145046486","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

Investigation of the effect of gamma-ray irradiation on SnO2 nanoparticles for photocatalysis application 射线辐照对光催化用SnO2纳米粒子影响的研究

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 : 2025-09-12 DOI: 10.1016/j.nimb.2025.165862

Ruchi Bisht , G.C. Joshi , Jagat Pal Singh , Chandra Shekhar Joshi

{"title":"Investigation of the effect of gamma-ray irradiation on SnO2 nanoparticles for photocatalysis application","authors":"Ruchi Bisht , G.C. Joshi , Jagat Pal Singh , Chandra Shekhar Joshi","doi":"10.1016/j.nimb.2025.165862","DOIUrl":"10.1016/j.nimb.2025.165862","url":null,"abstract":"<div><div>Present work reports the influence of gamma-irradiation on structural, optical and photocatalytic activity of SnO<sub>2</sub> nanoparticles (NPs). A simple and cost-effective chemical co-precipitation method was adopted to synthesize the sample and irradiated with γ-ray doses of 60 kGy, 90 kGy, 120 kGy and 150 kGy. XRD patterns showed the formation of pure phase tetragonal rutile structure of SnO<sub>2.</sub> TEM and FESEM studies revealed spherical-shaped agglomerated NPs. BET analysis revealed increased surface area in 150 kGy gamma-irradiated sample compared to unirradiated sample. UV–Vis spectrophotometry reveals decrease in band gap energy from 3.21 to 2.92 eV. Photoluminescence (PL) spectroscopy demonstrated formation of oxygen vacancies and defect-related visible emissions. SnO<sub>2</sub> NPs irradiated at 150 kGy dose of gamma ray showed better degradation efficiency of 92 % for crystal violet dye at optimized conditions under 75 min of sunlight exposure. The reusability of 150 kGy gamma-irradiated SnO<sub>2</sub> NPs showed efficiency of 84 % after four cycles.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"568 ","pages":"Article 165862"},"PeriodicalIF":1.4,"publicationDate":"2025-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145045921","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

Corrigendum to “Behaviors of lithium ions around LiCoO2 positive electrode/LATP solid electrolyte interfaces by charging and discharging cycles”. [Nucl. Ins. Method Phys. Res. B 566 (2025) 165786] “锂离子在LiCoO2正极/LATP固体电解质界面周围充放电循环的行为”的更正。(诊断。Ins。物理方法。Res. B 566 (2025) 165786]

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 : 2025-09-12 DOI: 10.1016/j.nimb.2025.165826

R. Terasawa , B. Tsuchiya , K. Kataoka , T. Sasaki , N. Uno , H. Tsuchida

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Conical targets for enhanced high-current positron sources 增强大电流正电子源的锥形靶

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 : 2025-09-11 DOI: 10.1016/j.nimb.2025.165854

Nicolas Vallis , Ramiro Mena-Andrade , Barbara Humann , Yongke Zhao , Paolo Craievich , Jean-Louis Grenard , Andrea Latina , Anton Lechner , Antonio Perillo-Marcone , Riccardo Zennaro , Fahad Alharthi , Iryna Chaikovska , Robert Chehab , Mike Seidel

{"title":"Conical targets for enhanced high-current positron sources","authors":"Nicolas Vallis , Ramiro Mena-Andrade , Barbara Humann , Yongke Zhao , Paolo Craievich , Jean-Louis Grenard , Andrea Latina , Anton Lechner , Antonio Perillo-Marcone , Riccardo Zennaro , Fahad Alharthi , Iryna Chaikovska , Robert Chehab , Mike Seidel","doi":"10.1016/j.nimb.2025.165854","DOIUrl":"10.1016/j.nimb.2025.165854","url":null,"abstract":"<div><div>Previous positron source designs have assumed that the converter target is significantly wider than the secondary beam size. This paper investigates targets with different transverse profiles to enhance positron production. Starting from the concept of wire-targets (James et al., 1991) proposed in 1991 for the former SLC positron source, we introduce conical-shaped targets to improve the yield by reducing positron reabsorption—an issue exacerbated by high-field solenoid lenses typically used for positron capture. Using Geant4 simulations, we propose new conical targets adapted for the future FCC-ee and its positron test facility P<sup>3</sup> (PSI Positron Production experiment) at the Paul Scherrer Institute. Results indicate that conical targets can nearly double the positron production at the target and boost FCC-ee’s positron yield by approximately 60%. Additionally, we present thermo-mechanical studies for the conical targets under FCC-ee’s primary beam power parameters, and outline the mechanical implementation for a proof-of-principle demonstration at the P<sup>3</sup> facility.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"568 ","pages":"Article 165854"},"PeriodicalIF":1.4,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145045920","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}

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Embedded atom method potentials for Zr reparameterized at short distance 嵌入原子法在近距离重新参数化Zr势

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 : 2025-09-10 DOI: 10.1016/j.nimb.2025.165843

Amir Ghorbani , Artur Tamm , Laurent Karim Béland

{"title":"Embedded atom method potentials for Zr reparameterized at short distance","authors":"Amir Ghorbani , Artur Tamm , Laurent Karim Béland","doi":"10.1016/j.nimb.2025.165843","DOIUrl":"10.1016/j.nimb.2025.165843","url":null,"abstract":"<div><div>Three embedded atom method (EAM) interatomic potentials were reparameterized to improve their ability to describe primary damage production in Zr under irradiation. Both the two-body and embedding energy functions of these EAM potentials were refitted with the goal of improving the description of Zr atoms at short distance and under high pressure, while keeping the near-equilibrium properties of the material unchanged. The reparameterization was informed by density functional theory calculations. Namely, the equation of state of Zr and the energy of embedded dimers (also known as applying quasi-static drag) were calculated and used as targets for the fit. The reparameterized potentials have similar point defect formation energies and elastic constants as compared to the original EAM potentials. On the other hand, reparameterization had a significant impact on displacement threshold energies (TDEs). In particular, reparameterization led the <span><math><mfenced><mrow><mn>0001</mn></mrow></mfenced></math></span> TDE as predicted by all three EAM potentials to become much closer to a previously reported <em>ab initio</em> TDE value.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"568 ","pages":"Article 165843"},"PeriodicalIF":1.4,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145027216","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}

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Thermal effect of electron beam bombardment on luminescence intensity of indium phosphide single crystal 电子束轰击对磷化铟单晶发光强度的热效应

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 : 2025-09-09 DOI: 10.1016/j.nimb.2025.165856

D. Kenieche

{"title":"Thermal effect of electron beam bombardment on luminescence intensity of indium phosphide single crystal","authors":"D. Kenieche","doi":"10.1016/j.nimb.2025.165856","DOIUrl":"10.1016/j.nimb.2025.165856","url":null,"abstract":"<div><div>The interaction of the electron with the sample gives a local heating. The temperature rise during electron bombardment is calculated and its influence on cathodoluminescence (CL) of Indium Phosphide (InP) is investigated, a physical model has been employed.</div><div>The effect of incident electron beam parameters such as incident energy (<span><math><msub><mi>E</mi><mn>0</mn></msub></math></span>), incident beam current (<span><math><msub><mi>I</mi><mi>p</mi></msub></math></span>) and probe diameter (<span><math><mi>d</mi></math></span>) on heating sample of InP have been studied.</div><div>The results show that the temperature rise has a significant effect on CL signal, particularly at surface sample directly impacted by the beam, and can reach <span><math><mrow><msup><mn>21</mn><mo>°</mo></msup><mi>C</mi></mrow></math></span> more than the temperature without the beam for the incident beam current was taken about <span><math><mrow><mn>50</mn><mi>n</mi><mi>A</mi></mrow></math></span> and diameter <span><math><mrow><mn>0.5</mn><mi>μ</mi><mi>m</mi></mrow></math></span>. The cathodoluminescence intensity (I<sub>CL</sub>) is decreased with increasing temperature of sample. These results can guide the optimization of scanning electron microscopy cathodoluminescence (SEM-CL) conditions and contribute to the design of InP-based optoelectronic devices with improved thermal stability.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"568 ","pages":"Article 165856"},"PeriodicalIF":1.4,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145019431","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}

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An automated, high throughput, trace element end station for Crocker Nuclear Laboratory’s isochronous cyclotron 自动，高通量，微量元素终端站克罗克核实验室的等时回旋加速器

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 : 2025-09-09 DOI: 10.1016/j.nimb.2025.165864

Nicholas J. Spada , Carlos M. Castaneda , Michael Backfish , Sinan Yatkin , Alexa M. Wells , Hanna Q. Best , Eric J. Prebys

{"title":"An automated, high throughput, trace element end station for Crocker Nuclear Laboratory’s isochronous cyclotron","authors":"Nicholas J. Spada , Carlos M. Castaneda , Michael Backfish , Sinan Yatkin , Alexa M. Wells , Hanna Q. Best , Eric J. Prebys","doi":"10.1016/j.nimb.2025.165864","DOIUrl":"10.1016/j.nimb.2025.165864","url":null,"abstract":"<div><div>The end station of an isochronous cyclotron was recently updated to analyze size-segregated ambient particulate matter samples from a concurrent air monitoring campaign near a marine shipping terminal that stored coal and petroleum coke. The unique capabilities of cyclotron-based elemental analysis by Proton Elastic Scattering Analysis (PESA), Rutherford Backscattering (RBS), and Proton Induced X-ray Emission analysis (PIXE) allowed quantification of 27 elements in eight discrete particle size bins at three-hour temporal resolution. The method validation was performed by analysis of standard reference materials, a set of blanks and samples. The detection limits, uncertainty and precision were similar to comparable experiments reported in the literature. The analyses of high-time resolution size-segregated PM revealed that the developed methodology has a great potential to improve understanding of short-lived pollution episodes. While the end station will continue to be optimized, it will be leveraged for inter-disciplinary studies in various scientific fields.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"568 ","pages":"Article 165864"},"PeriodicalIF":1.4,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145019433","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