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

IAEA inter-comparison of PIGE analysis codes II – depth profiling 国际原子能机构PIGE分析代码的相互比较II深度剖面

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 : 2026-04-01 Epub Date: 2026-01-28 DOI: 10.1016/j.nimb.2026.166034

N.P. Barradas , J. Cruz , A.P. de Jesus , V. Manteigas , M. Mayer , I. Vickridge , P. Dimitriou

{"title":"IAEA inter-comparison of PIGE analysis codes II – depth profiling","authors":"N.P. Barradas , J. Cruz , A.P. de Jesus , V. Manteigas , M. Mayer , I. Vickridge , P. Dimitriou","doi":"10.1016/j.nimb.2026.166034","DOIUrl":"10.1016/j.nimb.2026.166034","url":null,"abstract":"<div><div>Following the IAEA inter-comparison exercise on software for Particle Induced Gamma-ray Emission (PIGE) bulk analysis, which confirmed that all participating codes agree within numerical fluctuations, a second IAEA coordinated inter-comparison was performed on simulations of multi-layered samples, i.e., depth profiling. Seven exercises were defined to investigate how the codes perform in simulations of (i) a thin film plus substrate (substrate can be heavy or light element) and (ii) two films plus substrate (substrate can be heavy or light element). The exercises considered constant cross sections, a single sharp resonance or several sharp resonances; full beam straggling and Gaussian-type spread; and different film thickness (surface, deep, very deep). Four codes took part in the inter-comparison: ERYA-profiling, NDF, SIMNRA, and SPACES. The inter-comparisons confirmed that the codes generally agree with each other and are suitable for the purpose of analysing experimental data. Some numerical differences remain in specific cases, particularly when dealing with extremely narrow resonances in the reaction cross section.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"573 ","pages":"Article 166034"},"PeriodicalIF":1.4,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146080772","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

MicroPIXE mapping of nanoparticles unravels differential toxicological effects on tadpoles 纳米颗粒的MicroPIXE图谱揭示了对蝌蚪的不同毒理学效应

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 : 2026-04-01 Epub Date: 2026-02-06 DOI: 10.1016/j.nimb.2026.166038

G.V. Svartz , J.Zárate Insúa , E.G. Acosta , M.J. Penelas , E.M. de la Fournière

{"title":"MicroPIXE mapping of nanoparticles unravels differential toxicological effects on tadpoles","authors":"G.V. Svartz , J.Zárate Insúa , E.G. Acosta , M.J. Penelas , E.M. de la Fournière","doi":"10.1016/j.nimb.2026.166038","DOIUrl":"10.1016/j.nimb.2026.166038","url":null,"abstract":"<div><div>In this work, South American tadpoles (<em>R. arenarum</em>) were exposed to aqueous Au and ZnO nanoparticles (NPs), respectively, to perform an acute ecotoxicological assessment. A 50-MeV <sup>16</sup>O<sup>5+</sup> beam was employed to map by microPIXE Au- and Zn- histological microdistribution in order to propose a mechanism underlying intoxication.</div><div>The beam was focused with the aid of the Tandar Laboratory heavy-ion microprobe onto a spot of 5 μm in diameter. 2D elemental distribution maps were constructed. Total reflection X-Ray Fluorescence spectroscopy (TXRF) was used for bulk analysis of previously digested samples.</div><div>The results indicated that, in all cases, NPs were highly bioconcentrated (>300 times). Nonetheless, Au NPs were blocked by aggregation in the digestive system and undetectable ([Au] < 1.5 µg.g<sup>−1</sup>) in other tissues, whereas ZnO NPs were dispersed in several tissues. The differential microdistribution of Au and ZnO NPs allowed to explain the toxicological features and could lead to a dissimilar biomagnification throughout the aquatic food web.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"573 ","pages":"Article 166038"},"PeriodicalIF":1.4,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147385714","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

Energy-loss corrections to the lateral spread distributions of helium ions in solids 固体中氦离子横向扩散分布的能量损失修正

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 : 2026-04-01 Epub Date: 2026-02-10 DOI: 10.1016/j.nimb.2026.166044

A. Mekhtiche , K. Khalal-Kouache

引用次数: 0

Development of an efficient ion-implanter for mutagenesis breeding 诱变育种中高效离子注入剂的研制

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 : 2026-04-01 Epub Date: 2026-01-27 DOI: 10.1016/j.nimb.2026.166031

Mengmeng Li , Yuzhong Qian , Zhengqing Zhu , Renli Zhu , Xin Tao , Yongjian Xu , Lizhen Liang

{"title":"Development of an efficient ion-implanter for mutagenesis breeding","authors":"Mengmeng Li , Yuzhong Qian , Zhengqing Zhu , Renli Zhu , Xin Tao , Yongjian Xu , Lizhen Liang","doi":"10.1016/j.nimb.2026.166031","DOIUrl":"10.1016/j.nimb.2026.166031","url":null,"abstract":"<div><div>A low-current ion implantation device was developed for mutagenesis breeding and its performance was systematically characterized based on an inductively coupled plasma (ICP) source, which significantly improved the stability of the extracted ion beam while reducing maintenance costs. By optimizing the vacuum system configuration and using a motor-driven rotating disk, the device significantly reduced the sample preparation time before ion implantation. Furthermore, maintenance convenience was conducted to establish the relationship between the extracted beam current of the hydrogen and nitrogen ion beams and the applied high voltage and RF power. Finally, the beam-flattnes parameter (the ratio of the confined average beam current to the maximum beam current) of the hydrogen and nitrogen beam spots on the target are quantified. The experimental results demonstrate that the extracted currents of both hydrogen and nitrogen ion beams initially decrease with increasing high voltage and then rise gradually, remaining below 1 mA, and the beam currents increase with RF power. The beam flatness on the target reaches its optimum at 20 kV for both beam lines. This research provides reliable technological support for large-scale application of ion implantation technology in the breeding industry.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"573 ","pages":"Article 166031"},"PeriodicalIF":1.4,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146080773","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

Identification of fragments produced from dimethylamine in a Freeman-type ion source and deposition of carbon nitride films by injecting CNH+ ions 自由离子源二甲胺片段的鉴定及注入CNH+沉积氮化碳膜

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 : 2026-04-01 Epub Date: 2026-02-17 DOI: 10.1016/j.nimb.2026.166054

Satoru Yoshimura , Takae Takeuchi , Masato Kiuchi

引用次数: 0

Deuteron activation analysis of amber coloured glasses excavated at the Roman Villa Borg (Saarland), Germany 德国萨尔州罗马别墅堡出土的琥珀色玻璃的氘核活化分析

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 : 2026-04-01 Epub Date: 2026-02-18 DOI: 10.1016/j.nimb.2026.166052

Chaturvedula S. Sastri , Thierry Sauvage , Bettina Birkenhagen , Olivier Wendling , William Hate , Paul Sigot , Frédéric Foucher , Aurélien Bellamy

{"title":"Deuteron activation analysis of amber coloured glasses excavated at the Roman Villa Borg (Saarland), Germany","authors":"Chaturvedula S. Sastri , Thierry Sauvage , Bettina Birkenhagen , Olivier Wendling , William Hate , Paul Sigot , Frédéric Foucher , Aurélien Bellamy","doi":"10.1016/j.nimb.2026.166052","DOIUrl":"10.1016/j.nimb.2026.166052","url":null,"abstract":"<div><div>Carbon is determined in amber coloured vessel-glass fragments excavated at the Roman Villa Borg by non-destructive 2.0 MeV deuteron activation analysis, based on C-12(d,n)N-13 nuclear reaction. Carbon is found covering a mass range of 950 ppm to 3950 ppm. The higher values in the range 2300–3950 ppm seen in some clearly indicate that Romans were aware of the role played by carbon in producing amber colour and it was added intentionally. The deuteron activation, a well-established highly sensitive nuclear analytical method for carbon, under the same irradiation and counting conditions, allows the simultaneous determination of sodium, magnesium and aluminium in glasses and their results are also presented. Five glasses with sodium in the range (10.2 – 12.6) % indicate they were made with “natron” based flux. Three glasses show lower sodium levels in the range (0.87–1.5) % indicating probably plant-ash was used to make them. Further, the hidden potential of our method in understanding various problems which might have affected the ancient glass industry, is discussed.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"573 ","pages":"Article 166052"},"PeriodicalIF":1.4,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147385785","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

Tree-ring dating of commercially available alerce boards in Japan 日本市售警铃板的年轮测年

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 : 2026-04-01 Epub Date: 2026-02-03 DOI: 10.1016/j.nimb.2026.166032

Masaki Sano , Naomi Kami , Masataka Hakozaki , Fuyuki Tokanai , Minoru Sakamoto

{"title":"Tree-ring dating of commercially available alerce boards in Japan","authors":"Masaki Sano , Naomi Kami , Masataka Hakozaki , Fuyuki Tokanai , Minoru Sakamoto","doi":"10.1016/j.nimb.2026.166032","DOIUrl":"10.1016/j.nimb.2026.166032","url":null,"abstract":"<div><div>Alerce (<em>Fitzroya cupressoides</em>) is a rare and long-lived cypress that grows in southern Chile and Argentina. Considerable efforts have been devoted to developing millennium-long tree-ring chronologies of alerce, and this has led to a published 5682-year-long tree-ring width chronology that was used to reconstruct the temperature record from the mid-Holocene to the present. Such long-lived trees can also be analyzed to develop radiocarbon calibration curves. In this study, tree-ring dating was conducted on commercially available alerce boards, which are thought to have been felled before the harvest of alerce was banned by the Convention on International Trade of Endangered Species. Although the samples have groups of micro-rings that could not be cross-dated, selected samples with relatively wide rings were successfully cross-dated against the tree-ring width master chronology. Some of these dated samples covered the period 693–1058 Common Era (CE, which is standard notation for the Gregorian calendar). An abrupt radiocarbon spike observed globally at 774–775 CE was identified in annually resolved radiocarbon data for one of our dated samples, which provides independent verification of the tree-ring dating. Although the sample size is limited, dating based on tree-ring widths yields robust age constraints on alerce boards. The results confirm the viability of dendrochronology for dating commercially imported alerce and highlight the potential use of such material in paleoclimatic studies.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"573 ","pages":"Article 166032"},"PeriodicalIF":1.4,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147385807","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

The contribution of bound electrons to stopping: A wavefunction-derived approach with angular momentum, spin degeneracy and binding energy effects 束缚电子对停止的贡献：具有角动量、自旋简并和结合能效应的波函数导出方法

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 : 2026-04-01 Epub Date: 2026-02-12 DOI: 10.1016/j.nimb.2026.166046

Maarten Vos , Pedro L. Grande

引用次数: 0

Study on the angular effect of single event burnout induced by atmospheric neutrons in SiC power MOSFETs SiC功率mosfet中大气中子引起的单事件烧坏的角效应研究

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 : 2026-04-01 Epub Date: 2026-02-11 DOI: 10.1016/j.nimb.2026.166047

Haoming Wang , Chao Peng , Zhifeng Lei , Zhangang Zhang , Teng Ma , Hong Zhang , Yujuan He , Xiangli Zhong , Hongjia Song , Zhao Fu , Jinbin Wang , Xiaoping Ouyang

{"title":"Study on the angular effect of single event burnout induced by atmospheric neutrons in SiC power MOSFETs","authors":"Haoming Wang , Chao Peng , Zhifeng Lei , Zhangang Zhang , Teng Ma , Hong Zhang , Yujuan He , Xiangli Zhong , Hongjia Song , Zhao Fu , Jinbin Wang , Xiaoping Ouyang","doi":"10.1016/j.nimb.2026.166047","DOIUrl":"10.1016/j.nimb.2026.166047","url":null,"abstract":"<div><div>Taking 90° as the angle perpendicular to the device surface and 0° as parallel to the surface, spallation neutron irradiation experiments were conducted within 0° − 90° range to investigate the impact of irradiation angle on single event burnout (SEB) in SiC power metal–oxide–semiconductor field-effect transistors (MOSFETs). Based on accelerated experimental results, the failures in time (FIT) of atmospheric neutron-induced SEB in SiC power MOSFETs at different angles under different reverse biases was calculated. The results indicate that the failure rate initially increases and subsequently decreases as the atmospheric neutron irradiation angle reduces. An empirical formula describing the angular dependence of failure rate for 1200 V reverse-biased SiC power MOSFETs was established. Particle transport simulations were performed using particle and heavy ion transport code system (PHITS) to explain the angular effect of atmospheric neutron-induced SEB.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"573 ","pages":"Article 166047"},"PeriodicalIF":1.4,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147385777","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

Matching optimization for TRIUMF’s rare isotope linac TRIUMF稀有同位素直线加速器的匹配优化

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 : 2026-04-01 Epub Date: 2026-02-12 DOI: 10.1016/j.nimb.2026.166051

O. Shelbaya , O. Hassan , R. Baartman , O. Kester , C. Pearce , T. Planche , L. Zhang

引用次数: 0