scholarly journals Elements Identification in Golden Strawberries (Physalis Peruviana L.) using Wavelength Dispersive X-Ray Fluorescence

2019 ◽  
Vol 7 (6) ◽  
pp. 851
Author(s):  
Uğur Akbaba
Keyword(s):  
Weight Loss ◽  
Functional Food ◽  
Medical Field ◽  
X Ray ◽  
Physalis Peruviana ◽  
Food Properties ◽  
Wide Range ◽  
Important Health ◽  
Fluorescence Spectrometer ◽  
Non Destructive

Physalis peruviana (PP) is a popular exotic fruit due to its functional food properties. This product has a wide range of uses in the medical field, including treatments for cancer, malaria, hepatitis, dermatitis, rheumatism, weight loss, and diabetes. In this study, the PP element concentrations were investigated using a Wave Dispersive X-ray Fluorescence Spectrometer (WDXRF). Al, Ca, Fe, Mn, P, S, Zn, Cl, K, Mg, Na, F, Si, and B were detected, and the Ca, Fe, Zn, P, Na, Mg elements were found in significant amounts. Therefore, PP has some important health elements. For example, Mg and Mn may be associated with diabetes control. WDXRF is a cheap, quick, and non-destructive technique used in the elemental analysis of plant samples.

scholarly journals The microstructure investigation of plant architecture with X-ray microscopy

2019 ◽  
Author(s):  
Wenting Zhang ◽  
Tao Guo ◽  
Ke Chen ◽  
Ting La ◽  
Philipp Alexander Bastians ◽  
...  
Keyword(s):  
Plant Species ◽  
3D Imaging ◽  
Three Dimensional ◽  
Plant Morphology ◽  
Plant Tissues ◽  
X Ray ◽  
Wide Range ◽  
Observation Method ◽  
Microscopy Techniques ◽  
Non Destructive

ABSTRACTBackgroundIn recent years, the plant morphology has been well studied by multiple approaches at cellular and subcellular levels. Two-dimensional (2D) microscopy techniques offer imaging of plant structures on a wide range of magnifications for researchers. However, subcellular imaging is still challenging in plant tissues like roots and seeds.ResultsHere we use a three-dimensional (3D) imaging technology based on the ZEISS X-ray microscope (XRM) Versa and analyze several plant tissues from different plant species. The XRM provides new insights into plant structures using non-destructive imaging at high-resolution and high contrast. We also developed a workflow aiming to acquire accurate and high-quality images in the context of the whole specimen. Multiple plant samples including rice, tobacco, Arabidopsis and maize were used to display the differences of phenotypes, which indicates that the XRM is a powerful tool to investigate plant microstructure.ConclusionsOur work provides a novel observation method to evaluate and quantify tissue specific differences for a range of plant species. This new tool is suitable for non-destructive seed observation and screening.

Cladding Thickness of Fuel Elements by X-Rays

1958 ◽  
Vol 2 ◽  
pp. 275-281
Author(s):  
Beverley James Lowe ◽  
Payson D. Sierer ◽  
Robert B. Ogilvie
Keyword(s):  
304 Stainless Steel ◽  
X Rays ◽  
X Ray ◽  
Uranium Fuel ◽  
Wide Range ◽  
Materials Used ◽  
Fuel Elements ◽  
Destructive Measurement ◽  
Non Destructive ◽  
Cladding Material

AbstractThe paper is based on a feasibility study to determine the suitability of various techniques for the non-destructive measurement of cladding thickness on uranium fuel elements. The techniques studied were: 1—the attentuation of the characteristic X-ray fluorescence from the uranium base metal by the cladding material, and 2—Compton scattering of X-rays from the cladding surface. The cladding materials used in the investigation were aluminum, 304 stainless steel and zirconium, providing a wide range of both atomic number and density.

Combined Tem and X-Ray Topographic Characterization of InxGa1−xAs/GaAs Strained Layer Systems.

1990 ◽  
Vol 209 ◽  
Author(s):  
Michael Dudley ◽  
Gong-Da Yao ◽  
David Paine ◽  
David Howard ◽  
Robert N. Sacks
Keyword(s):  
Interfacial Dislocation ◽  
X Ray ◽  
Strained Layer ◽  
Dislocation Densities ◽  
Wide Range ◽  
Lift Off ◽  
Depth Sensitivity ◽  
Non Destructive ◽  
Defect Densities

ABSTRACTNovel application of a combination of TEM and non-destructive synchrotron X-ray topography in both Bragg and grazing Bragg-Laue geometries to the characterization of InxGa1−xAs/GaAs strained layer films is reported. Specialized epilayer lift-off procedures enabled TEM characterization of the defect distributions in macroscopic area films, effectively increasing the field of view of the technique by several orders of magnitude. These lateral distributions correlated well with those observed on both Bragg and grazing Bragg- Laue topographs. Grazing Bragg-Laue images also afforded depth sensitivity. Excellent correlations exist between results obtained with all these techniques for systems with a wide range of In concentrations, corresponding to a broad range of interfacial dislocation densities, although only results for x=;0.085 are presented. This work demonstrates that it is possible to bridge the gap that has traditionally existed between the areas of application of these two generic techniques, in terms of both tolerable defect densities and fields of view. This gap also spans the range of defect densities which is of interest in this and other systems.

Simulation and Evaluation of Residual Stress in Bone at the Interface with Implant

2011 ◽  
Vol 681 ◽  
pp. 315-320
Author(s):  
Abdelilah Benmarouane ◽  
Yeting Shi ◽  
Bastien Mireux ◽  
Thomas Buslaps ◽  
Alain Lodini
Keyword(s):  
X Ray Diffraction ◽  
Medical Field ◽  
Therapeutic Success ◽  
Element Analysis ◽  
Bone Implant ◽  
X Ray ◽  
Natural Bone ◽  
Simulation And Evaluation ◽  
Non Destructive

The use of the implants has become current since 1930. With the improvement of technology, titanium alloy coated with nano-hydroxyapatite has been used in the medical field. As a long-term establishment is a meter of the therapeutic success, it is necessary to use biocompatible implants in order to have good mechanical and fracture resistance at the interface bone-implant. In orthopaedic surgery Titanium (Ti-Al-4V) implants are currently coated with hydroxyapatite (HAp), Ca10 (PO4)6 (OH)2, in order to obtain a stable and functional direct connection between the bone and the implant. At the implant-bone interface the new bone reconstituted after implantation must have the same mechanicals properties as the natural bone in order to accept the implant. Therefore we studied the residuals stresses of the new bone crystals reconstituted at the interface applying non destructive x-ray diffraction and using finite element analysis in order to compare the results.

scholarly journals Development of synchrotron X-ray micro-tomography under extreme conditions of pressure and temperature

2017 ◽  
Vol 24 (1) ◽  
pp. 240-247 ◽  
Author(s):  
M. Álvarez-Murga ◽  
J. P. Perrillat ◽  
Y. Le Godec ◽  
F. Bergame ◽  
J. Philippe ◽  
...  
Keyword(s):  
High Pressure ◽  
Structural Changes ◽  
Three Dimensional ◽  
Crystallographic Structure ◽  
Three Dimensional Imaging ◽  
X Ray ◽  
Wide Range ◽  
Micro Tomography ◽  
Non Destructive

X-ray tomography is a non-destructive three-dimensional imaging/microanalysis technique selective to a wide range of properties such as density, chemical composition, chemical states and crystallographic structure with extremely high sensitivity and spatial resolution. Here the development of in situ high-pressure high-temperature micro-tomography using a rotating module for the Paris–Edinburgh cell combined with synchrotron radiation is described. By rotating the sample chamber by 360°, the limited angular aperture of ordinary high-pressure cells is surmounted. Such a non-destructive high-resolution probe provides three-dimensional insight on the morphological and structural evolution of crystalline as well as amorphous phases during high pressure and temperature treatment. To demonstrate the potentials of this new experimental technique the compression behavior of a basalt glass is investigated by X-ray absorption tomography, and diffraction/scattering tomography imaging of the structural changes during the polymerization of C60 molecules under pressure is performed. Small size and weight of the loading frame and rotating module means that this apparatus is portable, and can be readily installed on most synchrotron facilities to take advantage of the diversity of three-dimensional imaging techniques available at beamlines. This experimental breakthrough should open new ways for in situ imaging of materials under extreme pressure–temperature–stress conditions, impacting diverse areas in physics, chemistry, geology or materials sciences.

CALIBRATION OF A TABLETOP CONFOCAL MICROBEAM X-RAY FLUORESCENCE SPECTROMETER FOR A QUANTITATIVE DEPTH PROFILES EVALUATION

2019 ◽  
Vol 186 (2-3) ◽  
pp. 268-273
Author(s):  
Radek Prokeš ◽  
Tomáš Trojek
Keyword(s):  
Fluorescence Analysis ◽  
Calibration Procedure ◽  
X Ray ◽  
Depth Profiles ◽  
Sample Composition ◽  
Confocal Volume ◽  
Energy Dependent ◽  
Fluorescence Spectrometer ◽  
Non Destructive

Abstract Confocal micro-beam X-ray fluorescence analysis (confocal micro-XRF) is a non-destructive analytical tool for investigation of sample composition that enables acquiring three-dimensionally resolved information. This work describes a calibration procedure of a laboratory confocal micro-XRF setup, which leads to determination of its characteristic parameters. The calibration is performed using a tabletop confocal micro-XRF spectrometer designed recently at the Czech Technical University in Prague. The calibration procedure performed within this work comprises the essential steps of the setup characterization: excitation spectrum calculation, experimental determination of energy-dependent confocal volume size and integral sensitivity and calculation of the spectrometer sensitivity function. The results of the setup calibration will be used for development of a procedure enabling quantitative evaluation of the measured depth profiles.

Effects of selected bleaching agents on the functional and structural properties of orange albedo starch-based bioplastics

2020 ◽  
Vol 40 (2) ◽  
pp. 120-128
Author(s):  
Adewale G. Adeniyi ◽  
Oluwaseyi D. Saliu ◽  
Joshua O. Ighalo ◽  
Adebayo I. Olosho ◽  
Deborah T. Bankole ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Thermal Stability ◽  
Weight Loss ◽  
Sodium Perborate ◽  
X Ray Diffraction ◽  
Flow Properties ◽  
X Ray ◽  
Infrared Scanning ◽  
Wide Range ◽  
Scanning Electron

AbstractRecent research has proven that starch offers a wide range of industrial, commercial, and utility applications if they are optimally processed and refined. In this study, the effect of hydrogen peroxide (HP), sodium persulfite, peracetic acid (PAA), and sodium perborate (SPB) bleaching agents on the physiochemical, surface, mechanical, and flow properties were investigated. The various bleached starch bioplastics were characterized using Fourier transform infrared, scanning electron microscopy, X-ray diffraction, and thermogravimetric analysis. Hydroxyl and carbonyl (C=O) stretching were seen for HP- and PAA-bleached starch bioplastics at 3285 and 1736 and 3265 and 1698 cm−1, respectively. The C=O band was absent for SPB-treated starch, whereas the C=S band was seen on sodium hyposulfite (SHS)-treated starch. The morphologies of starch were retained with little agglomerations, except for HP-treated starch bioplastics with a morphology change. HP-treated starch had the highest percentage crystallinity (66%) and the highest thermal stability (74% weight loss), whereas PAA-treated starch had the lowest percentage crystallinity (34%) and the lowest thermal stability (88% weight loss). HP- and SHS-bleached starch bioplastics had the best surface, mechanical, and expansion properties.

Application of Spherically Curved Crystals for X-Ray Fluorescence

1968 ◽  
Vol 22 (6) ◽  
pp. 730-735 ◽  
Author(s):  
C. H. Ehrhardt ◽  
E. M. Banas ◽  
J. L. Janik
Keyword(s):  
Single Crystals ◽  
Proportional Counter ◽  
Gas Flow ◽  
Scintillation Counter ◽  
General Purpose ◽  
Radius Of Curvature ◽  
X Ray ◽  
Wide Range ◽  
Fluorescence Spectrometer ◽  
Focusing Properties

A general purpose x-ray fluorescence spectrometer has been constructed that employs the focusing properties of large spherically curved crystals. The 10 cm X 10 cm single crystals are bent to a 63.5-cm radius of curvature, and ground to the 31.75 radius of curvature of the focal circle. A motor-driven remotely controlled interchange mechanism has positions for four of these crystals. Also provided are: interchange of gas flow proportional counter or scintillation counter, and of chromium or tungsten target x-ray tubes, and a wide range of entrance and detector slitwidth combinations. Resolution and sensitivity are greatly superior to those of flat crystal optics.

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