Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms最新文献_第7页

Computational insights from the thermal spike model into mesoporous silica behavior during swift heavy ion irradiation 热尖峰模型对介孔二氧化硅在快速重离子辐照下行为的计算启示

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 : 2024-08-22 DOI: 10.1016/j.nimb.2024.165512

Jun Lin , Clara Grygiel , Christian Dufour , Xavier Deschanels

引用次数: 0

Picosecond pulsed beams of light and heavy keV ions at the Time-of-Flight Medium energy ion scattering system at Uppsala University 乌普萨拉大学飞行时间中能离子散射系统的皮秒脉冲轻重千伏安离子束

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 : 2024-08-21 DOI: 10.1016/j.nimb.2024.165494

Eleni Ntemou , Radek Holeňák , Dan Wessman , Daniel Primetzhofer

{"title":"Picosecond pulsed beams of light and heavy keV ions at the Time-of-Flight Medium energy ion scattering system at Uppsala University","authors":"Eleni Ntemou , Radek Holeňák , Dan Wessman , Daniel Primetzhofer","doi":"10.1016/j.nimb.2024.165494","DOIUrl":"10.1016/j.nimb.2024.165494","url":null,"abstract":"<div>A 16 MHz electrostatic beam chopper is implemented at the Uppsala University ToF-MEIS system to complement the 4 MHz sinusoidal scanning, refining the resolution without drift-tube bunching. The system is benchmarked with H2+, He+, and Ne+ ions in transmission and backscattering geometries. The estimated true pulse duration for 60 keV He+ is 34 ps while the direct beam impinging on the detector resulted in measured pulse widths of 295 ps for He ions and 481 ps for Ne ions. In backscattering geometries, ions impinging on the target yield measured pulse durations of 459 ns for H ions, 550 ps for He ions and 810 ps for Ne ions and lead to energy resolution measurements of 2.4 keV (100 keV H), 0.9 keV (60 keV He), and 2.4 keV (160 keV Ne). Discussions cover straggling effects on achievable energy resolution and how to obtain estimates of the true duration of the ion pulse.</div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"556 ","pages":"Article 165494"},"PeriodicalIF":1.4,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0168583X24002647/pdfft?md5=dda508ac230befa5602941d390563d0d&pid=1-s2.0-S0168583X24002647-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142011492","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

Differential cross-section measurement for 10B(p, αγ1)7Be, 10B(p, p’γ1)10B and 11B(p, p’γ1) 11B reactions 10B(p, αγ1)7Be, 10B(p, p'γ1)10B 和 11B(p, p'γ1) 11B 反应的差分截面测量结果

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 : 2024-08-16 DOI: 10.1016/j.nimb.2024.165509

Hafez Taghipour Aslani , Alireza Jokar , Ali Akbar Mehmandoost-Khajeh-Dad , Hossien Rafi-Kheiri

{"title":"Differential cross-section measurement for 10B(p, αγ1)7Be, 10B(p, p’γ1)10B and 11B(p, p’γ1) 11B reactions","authors":"Hafez Taghipour Aslani , Alireza Jokar , Ali Akbar Mehmandoost-Khajeh-Dad , Hossien Rafi-Kheiri","doi":"10.1016/j.nimb.2024.165509","DOIUrl":"10.1016/j.nimb.2024.165509","url":null,"abstract":"<div>Differential cross-sections of the 10B(p, αγ1)7Be (Eγ = 429 keV), 10B(p, p’γ1)10B (Eγ = 718 keV) and 11B(p, p’γ1) 11B (Eγ = 2124 keV) reactions have been measured at proton laboratory energies of 912–2776 keV at 90°. The proton beam impinged on a thin natB2O3 film evaporated onto a self-supporting thin carbon layer. The incident energies were increased by 10 (20) keV steps in the resonance (off-resonance) regions. Our data are compared with the existing ones from literature. A benchmark procedure was performed by comparing the calculated thick-target yields from the current differential cross-sections with the existing measured thick target gamma-ray yields. The overall systematic uncertainty of the cross-sections was estimated to be about 10 %, mainly related to the target thickness determination.</div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"556 ","pages":"Article 165509"},"PeriodicalIF":1.4,"publicationDate":"2024-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141992653","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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Effects of energetic electron irradiation on electric, magnetic, and mechanical properties of Cu-1.2 at.%Fe alloy 高能电子辐照对 Cu-1.2 at.%Fe 合金的电、磁和机械特性的影响

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 : 2024-08-14 DOI: 10.1016/j.nimb.2024.165506

A. Iwase , Y. Fujimura , S. Semboshi , F. Hori , T. Matsui

引用次数: 0

Development of a spectroscopic mapping system for simultaneous analysis of biological functions and trace elements using ion microbeams 利用离子微束开发同时分析生物功能和痕量元素的光谱绘图系统

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 : 2024-08-13 DOI: 10.1016/j.nimb.2024.165495

Makoto Nishizawa, Shigeo Matsuyama, Yohei Kikuchi, Sho Toyama, Misako Miwa, Wataru Kada

{"title":"Development of a spectroscopic mapping system for simultaneous analysis of biological functions and trace elements using ion microbeams","authors":"Makoto Nishizawa, Shigeo Matsuyama, Yohei Kikuchi, Sho Toyama, Misako Miwa, Wataru Kada","doi":"10.1016/j.nimb.2024.165495","DOIUrl":"10.1016/j.nimb.2024.165495","url":null,"abstract":"<div>In order to investigate the correlation between biological functions and trace elements, we have developed a spectroscopic mapping system for ion beam induced fluorescence (IBIF) analysis using a spectrometer and a CCD-based spectrometer and a photon counting type spectrometer based on a multi-pixel photon counter (MPPC) array. Biological functions and trace elements are closely related. To study this relationship, biological functions and trace elements must be mapped to the same positional coordinates. Our new IBIF analysis system, developed at the Dynamitron Laboratory of Tohoku University, has a high-speed capability of detection of IBIF by the fast response of the MPPC and a better signal-to-noise ratio (SNR) of imaging capability by the detection of fluorescence induced by the proton microprobe. As an evaluation trial, the IBIF analysis of the phosphor of cathode ray tube TV samples was performed. It was shown that spectral mapping is possible with the developed system.</div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"556 ","pages":"Article 165495"},"PeriodicalIF":1.4,"publicationDate":"2024-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141978369","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

Three-dimensional phase-field modeling of dislocation loop growth behaviors in irradiated materials: Applications in tungsten 辐照材料中位错环生长行为的三维相场建模：在钨中的应用

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 : 2024-08-08 DOI: 10.1016/j.nimb.2024.165493

Bowen Xue , Bingchen Li , Shuo Jin , Linyun Liang

引用次数: 0

Structural and optical properties of localized surface plasmon resonance sensor prepared by metal ion implantation: Influences of energy and fluence 金属离子注入法制备的局部表面等离子体共振传感器的结构和光学特性：能量和通量的影响

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 : 2024-08-06 DOI: 10.1016/j.nimb.2024.165492

Hui Qian , Yimo Wang , Changlong Liu , Jun Wang

{"title":"Structural and optical properties of localized surface plasmon resonance sensor prepared by metal ion implantation: Influences of energy and fluence","authors":"Hui Qian , Yimo Wang , Changlong Liu , Jun Wang","doi":"10.1016/j.nimb.2024.165492","DOIUrl":"10.1016/j.nimb.2024.165492","url":null,"abstract":"<div>The Ag ions with the same fluence and different energies as well as the Au ions with the same energy and different fluences were separately implanted into SiO2 wafers to prepare Ag-E30, Ag-E40, Ag-E50, Au-F6.0, Au-F4.5, and Au-F3.0 samples as the candidates for the localized surface plasmon resonance sensor. The prepared samples' structural and optical properties were studied in depth. The results revealed that among Ag-E30, Ag-E40, and Ag-E50 samples, Ag-E40 sample had a single nanocomposite surface layer, and its characteristic reflection peak linearly depended in position on the refractive index of overlay owing to the stronger interparticle interaction. For Au-F6.0, Au-F4.5, and Au-F3.0 samples, they all featured a single nanocomposite surface layer and showed a linear dependence of the characteristic reflection peak's position and the overlay's refractive index. Considering the cost of preparation, Au-F3.0 sample should be an optimal sensor although its refractive index sensitivity was slightly smaller.</div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"555 ","pages":"Article 165492"},"PeriodicalIF":1.4,"publicationDate":"2024-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141951646","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 beam based production of positron emitters by exploiting the 27Al(p,x)22Na reaction 利用 27Al(p,x)22Na 反应生产基于质子束的正电子发射器

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 : 2024-08-06 DOI: 10.1016/j.nimb.2024.165488

Lisa-Marie Krug , Leon Chryssos , Jürgen Bundesmann , Alina Dittwald , Georgios Kourkafas , Andrea Denker , Christoph Hugenschmidt

{"title":"Proton beam based production of positron emitters by exploiting the 27Al(p,x)22Na reaction","authors":"Lisa-Marie Krug , Leon Chryssos , Jürgen Bundesmann , Alina Dittwald , Georgios Kourkafas , Andrea Denker , Christoph Hugenschmidt","doi":"10.1016/j.nimb.2024.165488","DOIUrl":"10.1016/j.nimb.2024.165488","url":null,"abstract":"<div>Positron annihilation experiments on an laboratory scale depend on the supply and the availability of <math><msup><mrow><mi>β</mi></mrow><mrow><mo>+</mo></mrow></msup></math> emitters. Here we present the production of positron sources based on the 27Al(p,x)22Na reaction by irradiation of Al with a 68MeV proton beam. We simulated the energy loss, range and radial scattering of the protons in Al in order to design a simple target consisting of a stack of Al discs. Our approach allows (i) the direct use of the Al discs as positron emitters that inherently avoids wet chemical processes as usually applied in commercial production of carrier-free 22Na, (ii) the production of multiple positron sources at once, and (iii) the simple measurement of the depth and lateral distribution of 22Na. We precisely determined the cross section of the 27Al(p,x)22Na reaction which was found to differ from literature values particularly for proton energies between 27 and 40MeV. The activity of all nuclides produced (apart from 22Na) was shown to be negligible 15 days after irradiation. The production of radionuclides such as 48Sc, 54Mn and 56Co can be prevented by using Al of a higher purity. The concept presented here can easily be adapted for the production of stronger 22Na sources by increasing the proton current or/and the irradiation time.</div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"555 ","pages":"Article 165488"},"PeriodicalIF":1.4,"publicationDate":"2024-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0168583X24002581/pdfft?md5=c33f68bff05ab5056b1a9bda22da6f17&pid=1-s2.0-S0168583X24002581-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141951647","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

Isotopically selected implanted targets for nuclear reaction studies 用于核反应研究的同位素选择植入靶标

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 : 2024-08-03 DOI: 10.1016/j.nimb.2024.165485

S. Sandoval-Hipólito , E. Andrade , C. Esquivel-Carrillo , A. Huerta , L. Acosta , D.J. Marín-Lámbarri , J. Mas-Ruiz , G. Reza , M. Rodríguez-Ceja , C. Solís , A.O. Valdéz-Guerrero , E. Chávez

引用次数: 0

Measurement of the 11B(p,α0)8Be and the 11B(p,α1)8Be* reactions cross-sections at the proton energies up to 2.2 MeV 测量质子能量高达 2.2 MeV 时的 11B(p,α0)8Be 和 11B(p,α1)8Be*反应截面

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 : 2024-08-02 DOI: 10.1016/j.nimb.2024.165490

Sergey Taskaev , Victor Bessmeltsev , Marina Bikchurina , Timofey Bykov , Dmitrii Kasatov , Iaroslav Kolesnikov , Alexey Nikolaev , Efim Oks , Georgii Ostreinov , Sergey Savinov , Anna Shuklina , Evgeniia Sokolova , Georgy Yushkov

{"title":"Measurement of the 11B(p,α0)8Be and the 11B(p,α1)8Be* reactions cross-sections at the proton energies up to 2.2 MeV","authors":"Sergey Taskaev , Victor Bessmeltsev , Marina Bikchurina , Timofey Bykov , Dmitrii Kasatov , Iaroslav Kolesnikov , Alexey Nikolaev , Efim Oks , Georgii Ostreinov , Sergey Savinov , Anna Shuklina , Evgeniia Sokolova , Georgy Yushkov","doi":"10.1016/j.nimb.2024.165490","DOIUrl":"10.1016/j.nimb.2024.165490","url":null,"abstract":"<div>The proton boron fusion reaction attracts the attention of scientist since the dawn of nuclear physics for its relevance and potential application in different fields, from aneutronic fusion to astrophysics and hadron therapy. This reaction has been studied since the 1930s, but data from different authors differ. Obtaining the reliable experimental data on fundamental parameters (for example, direct or sequential decay, the cross-section, the energy spectrum of α-particles, the orbital angular momentum of α-particles) is still relevant. Measurements of the reactions cross-sections were carried out at the accelerator-based neutron source VITA at Budker Institute of Nuclear Physics (Novosibirsk, Russia) using an α-spectrometer. The 11B(p, α0)8Be and the 11B(p, α1)8Be* reactions cross-sections at the proton energies up to 2.2 MeV have been measured. The obtained data are presented in tabular form.</div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"555 ","pages":"Article 165490"},"PeriodicalIF":1.4,"publicationDate":"2024-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141950893","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