Characterization of a confocal three-dimensional micro X-ray fluorescence facility based on polycapillary X-ray optics and Kirkpatrick–Baez mirrors

2008 ◽  
Vol 63 (1) ◽  
pp. 76-80 ◽  
Author(s):  
Tianxi Sun ◽  
Xunliang Ding ◽  
Zhiguo Liu ◽  
Guanghua Zhu ◽  
Yude Li ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Ray Optics ◽  
X Ray

Characterization of polycapillary X-ray lens for application in confocal three-dimensional energy-dispersive micro X-ray diffraction experiments

2007 ◽  
Vol 40 (6) ◽  
pp. 1169-1173 ◽  
Author(s):  
Tianxi Sun ◽  
Meirong Zhang ◽  
Xunliang Ding ◽  
Zhiguo Liu ◽  
Xiaoyan Lin ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Depth Resolution ◽  
Energy Dispersive ◽  
Lateral Resolution ◽  
X Ray Diffraction ◽  
Ray Optics ◽  
X Ray

A confocal technology based on polycapillary X-ray optics is proposed to perform three-dimensional energy-dispersive micro X-ray diffraction. A three-dimensional energy-dispersive micro X-ray diffractometer based on a polycapillary focusing X-ray lens (PFXRL) in the excitation channel and a polycapillary parallel X-ray lens (PPXRL) in the detection channel has been designed. At 2\theta = 90^ \circ, the lateral resolution l_X \times l_Y of this diffractometer is 49.7 \times 49.9 \rm \micro m at 7.5 keV, and its depth resolution d_Z is 48.1 \rm \micro m at 8.0 keV. The total resolution of this diffractometer in \Delta d/d is 6.5% at 6.4 keV and 2\theta = 140.2^ \circ.

Three dimensional characterization of micronized soybean seeds using X-ray microtomography

2021 ◽  
Vol 127 ◽  
pp. 388-397
Author(s):  
Rani Puthukulangara Ramachandran ◽  
Chyngyz Erkinbaev ◽  
Sandeep Thakur ◽  
Jitendra Paliwal
Keyword(s):  
Three Dimensional ◽  
Soybean Seeds ◽  
X Ray

Three dimensional characterization of laser ablation craters using high resolution X-ray computed tomography

2018 ◽  
Vol 139 ◽  
pp. 75-82 ◽  
Author(s):  
A.H. Galmed ◽  
A. du Plessis ◽  
S.G. le Roux ◽  
E. Hartnick ◽  
H. Von Bergmann ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Laser Ablation ◽  
High Resolution ◽  
Three Dimensional ◽  
X Ray ◽  
X Ray Computed

X-ray topographic determination of the granular structure in a graphite mosaic crystal: a three-dimensional reconstruction

2000 ◽  
Vol 33 (4) ◽  
pp. 1023-1030 ◽  
Author(s):  
M. Ohler ◽  
M. Sanchez del Rio ◽  
A. Tuffanelli ◽  
M. Gambaccini ◽  
A. Taibi ◽  
...  
Keyword(s):  
Structural Parameters ◽  
Pyrolytic Graphite ◽  
Three Dimensional ◽  
X Ray ◽  
Dimensional Reconstruction ◽  
Mosaic Crystals ◽  
Spatial Locations ◽  
Crystalline Domains

Section topographs recorded at different spatial locations and at different rocking angles of a highly oriented pyrolytic graphite (HOPG) crystal allow three-dimensional maps of the local angular-dependent scattering power to be obtained. This is performed with a direct reconstruction from the intensity distribution on such topographs. The maps allow the extraction of information on local structural parameters such as size, form and internal mosaic spread of crystalline domains. This data analysis leads to a new method for the characterization of mosaic crystals. Perspectives and limits of applicability of this method are discussed.

Characterization of ADP crystals for soft x-ray optics of the Beam Expander Testing X-ray facility (BEaTriX)

2021 ◽  
Author(s):  
Claudio Ferrari ◽  
Riccardo Lolli ◽  
Bianca Salmaso ◽  
Giovanni Pareschi ◽  
Gianpiero Tagliaferri ◽  
...  
Keyword(s):  
Ray Optics ◽  
X Ray ◽  
Beam Expander

Solving the 3D structure of metal nanoparticles

2007 ◽  
Vol 222 (11/2007) ◽  
Author(s):  
Anatoly Frenkel
Keyword(s):  
Metal Nanoparticles ◽  
Short Range ◽  
Short Range Order ◽  
3D Structure ◽  
Three Dimensional ◽  
X Ray ◽  
Particle Distributions ◽  
Structure Of Metal ◽  
X Ray Absorption

We discuss methods of Extended X-ray Absorption Fine-Structure (EXAFS) analysis that provide three-dimensional structural characterization of metal nanoparticles, both mono- and bi-metallic. For the bimetallic alloys, we use short range order measurements to discriminate between random and non-random inter-particle distributions of atoms. We also discuss the application of EXAFS to heterogeneous nanoparticle systems.

Three-Dimensional Characterization of the Microstructure of Bioglass/Polyethylene Composite by X-Ray Microtomography

2007 ◽  
Vol 330-332 ◽  
pp. 503-506
Author(s):  
Xiao Wei Fu ◽  
Jie Huang ◽  
E.S. Thian ◽  
Serena Best ◽  
William Bonfield
Keyword(s):  
Spatial Distribution ◽  
Volume Fraction ◽  
Three Dimensional ◽  
X Ray ◽  
Polyethylene Composite ◽  
Bioactive Properties ◽  
Recent Developments ◽  
3D Information

A Bioglass® reinforced polyethylene (Bioglass®/polyethylene) composite has been prepared, which combines the high bioactivity of Bioglass® and the toughness of polyethylene. The spatial distribution of Bioglass® particles within the composite is important for the performance of composites in-vivo. Recent developments in X-ray microtomography (XμT) have made it possible to visualize internal and microstructural details with different X-ray absorbencies, nondestructively, and to acquire 3D information at high spatial resolution. In this study, the volume fraction and 3D spatial distribution of Bioglass® particles has been acquired quantitatively by XμT. The information obtained provides a foundation for understanding the mechanical and bioactive properties of the Bioglass®/polyethylene composites.

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