Physics Procedia最新文献_第2页

Structural Change of Carbon Anode in a Lithium-ion Battery Product Associated with Charging Process Observed by Neutron Transmission Bragg-edge Imaging 锂离子电池产品碳负极结构随充电过程的变化

Physics Procedia Pub Date : 2017-01-01 DOI: 10.1016/j.phpro.2017.06.003

Takashi Kamiyama , Yuki Narita , Hirotaka Sato , Masato Ohnuma , Yoshiaki Kiyanagi

{"title":"Structural Change of Carbon Anode in a Lithium-ion Battery Product Associated with Charging Process Observed by Neutron Transmission Bragg-edge Imaging","authors":"Takashi Kamiyama , Yuki Narita , Hirotaka Sato , Masato Ohnuma , Yoshiaki Kiyanagi","doi":"10.1016/j.phpro.2017.06.003","DOIUrl":"10.1016/j.phpro.2017.06.003","url":null,"abstract":"<div><p>Spectroscopic neutron Bragg-edge imaging was performed to study a lithium-ion battery (LIB) product. This non-destructive neutron imaging method is suitable for the evaluation of industrial products, but presents some difficulties for application to multicomponent products. The LIB includes a strong neutron scatterer and an absorber, and is thus a suitable test case for the use of neutron imaging in actual product measurement. In this study, we analyzed the variation of the graphite anode structure with changes in the battery charge level. The experiments were carried out using the compact neutron source at the Hokkaido University neutron source facility (HUNS). To eliminate the effect of scattered neutron contamination, we first determined the distance between the sample and detector required to reduce this effect to under 1%. Using this separation, the charge level dependence of the anode structure was measured. The graphite {002} Bragg-edge could be recognized on the neutron transmission spectra. The Bragg-edge was shifted and broadened with increasing battery charge. The edge was consistent with the existence of multiple graphite structural stages. The layer spacing distribution images for different charge levels showed the inhomogeneous fluctuation on the LIB lattice plane. Based on the images the fraction of the graphite structural stages were analyzed. The ratio of each stage varied with the charge level, and the ideal intercalation structure, in which the graphite layers are stuffed with Li-ions, was found to be minor in the final charging state.</p></div>","PeriodicalId":20407,"journal":{"name":"Physics Procedia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.phpro.2017.06.003","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76942827","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 15

The Signal Chain - how the Removal of an Image Intensifier at the AERE Reactor in Bangladesh Improves Neutron Imaging 信号链——孟加拉国AERE反应堆去除图像增强器如何改善中子成像

Physics Procedia Pub Date : 2017-01-01 DOI: 10.1016/j.phpro.2017.06.034

Burkhard Schillinger , Sudipta Saha

引用次数: 4

Illinois Accelerator Research Center 伊利诺斯加速器研究中心

Physics Procedia Pub Date : 2017-01-01 DOI: 10.1016/j.phpro.2017.09.030

Thomas K. Kroc, Charlie A. Cooper

{"title":"Illinois Accelerator Research Center","authors":"Thomas K. Kroc, Charlie A. Cooper","doi":"10.1016/j.phpro.2017.09.030","DOIUrl":"10.1016/j.phpro.2017.09.030","url":null,"abstract":"<div><p>The Illinois Accelerator Research Center (IARC) hosts a new accelerator development program at Fermi National Accelerator Laboratory. IARC provides access to Fermi's state-of-the-art facilities and technologies for research, development and industrialization of particle accelerator technology. In addition to facilitating access to available existing Fermi infrastructure, the IARC Campus has a dedicated 36,000 ft<sup>2</sup> Heavy Assembly Building (HAB) with all the infrastructure needed to develop, commission and operate new accelerators. Connected to the HAB is a 47,000 ft<sup>2</sup> Office, Technology and Engineering (OTE) building, paid for by the state, that has office, meeting, and light technical space. The OTE building, which contains the Accelerator Physics Center, and nearby Accelerator and Technical divisions provide IARC collaborators with unique access to world class expertise in a wide array of accelerator technologies. At IARC scientists and engineers from Fermilab and academia work side by side with industrial partners to develop breakthroughs in accelerator science and translate them into applications for the nation's health, wealth and security.</p></div>","PeriodicalId":20407,"journal":{"name":"Physics Procedia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.phpro.2017.09.030","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79610756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Historic binnacle of 14C/12C concentration in Mexico City 墨西哥城14C/12C浓度的历史坐标

Physics Procedia Pub Date : 2017-01-01 DOI: 10.1016/j.phpro.2017.09.007

J.A. Flores , C. Solís , A. Huerta , M.E. Ortiz , M.G. Rodríguez-Ceja , J. Villanueva , E. Chávez

引用次数: 6

Computational Analysis Supporting the Design of a New Beamline for the Mines Neutron Radiography Facility 支持矿山中子射线照相设备新型光束线设计的计算分析

Physics Procedia Pub Date : 2017-01-01 DOI: 10.1016/j.phpro.2017.06.045

C. Wilson, J. King

{"title":"Computational Analysis Supporting the Design of a New Beamline for the Mines Neutron Radiography Facility","authors":"C. Wilson, J. King","doi":"10.1016/j.phpro.2017.06.045","DOIUrl":"10.1016/j.phpro.2017.06.045","url":null,"abstract":"<div><p>The Colorado School of Mines installed a neutron radiography system at the United States Geological Survey TRIGA reactor in 2012. An upgraded beamline could dramatically improve the imaging capabilities of this system. This project performed computational analyses to support the design of a new beamline, with the major goals of minimizing beam divergence and maximizing beam intensity. The new beamline will consist of a square aluminum tube with an 11.43cm (4.5 in) inner side length and 0.635cm (0.25 in) thick walls. It is the same length as the original beam tube (8.53 m) and is composed of 1.22 m (4 ft) and 1.52 m (5ft) flanged sections which bolt together. The bottom 1.22 m of the beamline is a cylindrical aluminum pre-collimator which is 0.635cm (0.25 in) thick, with an inner diameter of 5.08cm (2 in). Based on Monte Carlo model results, when a pre-collimator is present, the use of a neutron absorbing liner on the inside surface of the beam tube has almost no effect on the angular distribution of the neutron current at the collimator exit. The use of a pre-collimator may result in a non-uniform flux profile at the image plane; however, as long as the collimator is at least three times longer than the pre-collimator, the flux distortion is acceptably low.</p></div>","PeriodicalId":20407,"journal":{"name":"Physics Procedia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.phpro.2017.06.045","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86655872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental Evaluation of Neutron Absorption Grating Fabricated by Oblique Evaporation of Gadolinium for Phase Imaging 钆斜蒸发中子吸收光栅相位成像的实验评价

Physics Procedia Pub Date : 2017-01-01 DOI: 10.1016/j.phpro.2017.06.030

Yoshichika Seki , Takenao Shinohara , Wakana Ueno , Joseph D. Parker , Tetsuo Samoto , Wataru Yashiro , Atsushi Momose

引用次数: 14

Influence of Formation Conditions on the Level of Arrays Ordering of Anodic Titanium Oxide Nanotubes 形成条件对阳极氧化钛纳米管阵列有序水平的影响

Physics Procedia Pub Date : 2017-01-01 DOI: 10.1016/j.phpro.2017.01.015

N.B. Kondrikov, P.L. Titov, S.A. Schegoleva, M.A. Khorin

引用次数: 3

Local Density of States in One-dimensional Photonic Crystals and Sinusoidal Superlattices 一维光子晶体和正弦超晶格的局域态密度

Physics Procedia Pub Date : 2017-01-01 DOI: 10.1016/j.phpro.2017.01.030

V.A. Ignatchenko, D.S. Tsikalov

引用次数: 3

Monitoring of Varying Joint Gap Width During Laser Beam Welding by a Dual Vision and Spectroscopic Sensing System 激光焊接过程中接头间隙宽度变化的双视觉和光谱传感系统监测

Physics Procedia Pub Date : 2017-01-01 DOI: 10.1016/j.phpro.2017.08.014

Morgan Nilsen , Fredrik Sikström , Anna-Karin Christiansson , Antonio Ancona

{"title":"Monitoring of Varying Joint Gap Width During Laser Beam Welding by a Dual Vision and Spectroscopic Sensing System","authors":"Morgan Nilsen , Fredrik Sikström , Anna-Karin Christiansson , Antonio Ancona","doi":"10.1016/j.phpro.2017.08.014","DOIUrl":"10.1016/j.phpro.2017.08.014","url":null,"abstract":"<div><p>A vision and spectroscopic system for estimation of the joint gap width in autogenous laser beam butt welding is presented. Variations in joint gap width can introduce imperfections in the butt joint seam, which in turn influence fatigue life and structural integrity. The aim of the monitoring approach explored here is to acquire sufficiently robust process data to be used to guide post inspection activities and/or to enable feedback control for a decreased process variability. The dual-sensing approach includes a calibrated CMOS camera and a miniature spectrometer integrated with a laser beam tool. The camera system includes LED illumination and matching optical filters and captures images of the area in front of the melt pool in order to estimate the joint gap width from the information in the image. The intensity of different spectral lines acquired by the spectrometer has been investigated and the correlation between the intensity of representative lines and the joint gap width has been studied. Welding experiments have been conducted using a 6kW fiber laser. Results from both systems are promising, the camera system is able to give good estimations of the joint gap width, and good correlations between the signal from the spectrometer and the joint gap width have been found. However, developments of the camera setup and vision algorithm can further improve the joint gap estimations and more experimental work is needed in order to evaluate the robustness of the systems.</p></div>","PeriodicalId":20407,"journal":{"name":"Physics Procedia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.phpro.2017.08.014","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78557369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Detection System of the First Rapidly Relocatable Tagged Neutron Inspection System (RRTNIS), Developed in the Framework of the European H2020 C-BORD Project 在欧洲H2020 C-BORD项目框架下开发的首个快速可重新定位标记中子检测系统(RRTNIS)的检测系统☆

Physics Procedia Pub Date : 2017-01-01 DOI: 10.1016/j.phpro.2017.09.010

Cristiano Lino Fontana , Alberto Carnera , Marcello Lunardon , Felix Pino , Cinzia Sada , Francesca Soramel , Luca Stevanato , Giancarlo Nebbia , Cédric Carasco , Bertrand Perot , Alix Sardet , Guillaume Sannie , Alessandro Iovene , Carlo Tintori , Krystian Grodzicki , Marek Moszyński , Paweł Sibczyński , Lukasz Swiderski , Sandra Moretto

{"title":"Detection System of the First Rapidly Relocatable Tagged Neutron Inspection System (RRTNIS), Developed in the Framework of the European H2020 C-BORD Project","authors":"Cristiano Lino Fontana , Alberto Carnera , Marcello Lunardon , Felix Pino , Cinzia Sada , Francesca Soramel , Luca Stevanato , Giancarlo Nebbia , Cédric Carasco , Bertrand Perot , Alix Sardet , Guillaume Sannie , Alessandro Iovene , Carlo Tintori , Krystian Grodzicki , Marek Moszyński , Paweł Sibczyński , Lukasz Swiderski , Sandra Moretto","doi":"10.1016/j.phpro.2017.09.010","DOIUrl":"10.1016/j.phpro.2017.09.010","url":null,"abstract":"<div><p>The European project entitled “effective Container inspection at BORDer control points” (C-BORD) focuses on the development and <em>in-situ</em> tests of a comprehensive cost-effective solution for the generalized Non-Intrusive Inspection (NII) of containers and large-volume freight at the European Union (EU) border. It copes with a large range of targets, including explosives, chemical warfare agents, illicit drugs, tobacco and Special Nuclear Materials. Within the C-BORD project, a new generation of Tagged Neutron Inspection System (TNIS) for cargo containers is foreseen. Unlike its predecessors, this system would be the first Rapidly Relocatable TNIS (RRTNIS). It will be a second-line defense system, to be used on sealed containers in order to detect explosives, illicit drugs and chemical agents in a suspect voxel (elementary volume unit).</p><p>We report on the status of the RRTNIS system, in particular the overall design, the characterization of the large-volume NaI(Tl) gamma detectors, the digital analysis of the time measurements and the Data Acquisition System (DAQ).</p></div>","PeriodicalId":20407,"journal":{"name":"Physics Procedia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.phpro.2017.09.010","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77954457","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 17