Journal ArticleDOI
X-ray computed tomography in Zernike phase contrast mode at 8 keV with 50-nm resolution using Cu rotating anode X-ray source
TLDR
In this article, a sub-50 nm resolution X-ray computed tomography (XCT) system operating at 8 keV in absorption and Zemike phase contrast modes is described.Abstract:
High-resolution X-ray computed tomography (XCT) enables nondestructive 3D imaging of complex structures, regardless of their state of crystallinity. This work describes a sub-50 nm resolution XCT system operating at 8 keV in absorption and Zemike phase contrast modes based on a commercially available Cu rotating anode laboratory X-ray source. The system utilizes a high efficiency reflective capillary condenser lens and high-resolution Fresnel zone plates with an outermost zone width of 35 nm and 700 nm structure height resulting in a spatial resolution better than 50 nm currently. Imaging a fragment of the solid oxide fuel cells (SOFC) with 50 nm resolution is presented as an application example of the XCT technique in materials science and nanotechnology.read more
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Journal ArticleDOI
Quantitative X-ray tomography
Eric Maire,Philip J. Withers +1 more
TL;DR: In this paper, the authors review the current state of the art as CT transforms from a qualitative diagnostic tool to a quantitative one, including the use of iterative reconstruction strategies suited to specific segmentation tasks and emerging methods that provide more insight than conventional attenuation based tomography.
Journal ArticleDOI
X-ray imaging and analysis techniques for quantifying pore-scale structure and processes in subsurface porous medium systems
TL;DR: X-ray microtomographic imaging is a non-destructive technique for quantifying these processes in three dimensions within individual pores, and as reported here, with rapidly increasing spatial and temporal resolution.
Journal ArticleDOI
Soybean susceptibility to manufactured nanomaterials with evidence for food quality and soil fertility interruption.
John H. Priester,Yuan Ge,Randall E. Mielke,Allison M. Horst,Shelly Cole Moritz,Katherine Espinosa,Jeff Gelb,Sharon L. Walker,Roger M. Nisbet,Youn-Joo An,Joshua P. Schimel,Reid G. Palmer,Reid G. Palmer,Jose A. Hernandez-Viezcas,Jose A. Hernandez-Viezcas,Lijuan Zhao,Lijuan Zhao,Jorge L. Gardea-Torresdey,Jorge L. Gardea-Torresdey,Patricia A. Holden +19 more
TL;DR: Juxtaposed against widespread land application of wastewater treatment biosolids to food crops, these findings forewarn of agriculturally associated human and environmental risks from the accelerating use of MNMs.
Journal ArticleDOI
Nondestructive Reconstruction and Analysis of SOFC Anodes Using X-ray Computed Tomography at Sub-50 nm Resolution
John R. Izzo,Abhijit S. Joshi,Kyle N. Grew,Wilson K. S. Chiu,Andrei Tkachuk,Siew H. Wang,Wenbing Yun +6 more
TL;DR: In this article, a high-resolution, non-destructive X-ray computed tomography (XCT) technique is applied to image the three-dimensional (3D) microstructure of a solid oxide fuel cell (SOFC) composed of a liquid yttria-stabilized zirconia electrolyte and a porous nickel YSZ (Ni-YSZ) anode.
Journal ArticleDOI
X-ray microtomography in biology.
Ryuta Mizutani,Yoshio Suzuki +1 more
TL;DR: Practical aspects of sample preparation, handling, data collection, 3D reconstruction, and structure analysis, and perspectives of biological microtomography as the convergence of sciences in X-ray optics, biology, and structural analysis are provided.
References
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Book
Principles of Optics
TL;DR: In this paper, the authors discuss various topics about optics, such as geometrical theories, image forming instruments, and optics of metals and crystals, including interference, interferometers, and diffraction.
Journal ArticleDOI
Soft X-ray microscopy at a spatial resolution better than 15 nm
Weilun Chao,Weilun Chao,Bruce Harteneck,J. Alexander Liddle,Erik H. Anderson,David Attwood,David Attwood +6 more
TL;DR: The achievement of sub-15-nm spatial resolution with a soft X-ray microscope—and a clear path to below 10 nm—using an overlay technique for zone plate fabrication is reported.
Journal ArticleDOI
Three-dimensional reconstruction of a solid-oxide fuel-cell anode
James R. Wilson,Worawarit Kobsiriphat,R. Mendoza,R. Mendoza,Hsun-Yi Chen,Jon Hiller,Dean J. Miller,Katsuyo Thornton,Peter W. Voorhees,Stuart B. Adler,Scott A. Barnett +10 more
TL;DR: This work demonstrates the use of dual-beam focused ion beam–scanning electron microscopy to make a complete three-dimensional reconstruction of a solid-oxide fuel-cell electrode, and calculates critical microstructural features such as volume fractions and surface areas of specific phases, three-phase boundary length, and the connectivity and tortuosity of specific subphases.
Journal ArticleDOI
Cryo X-ray microscopy with high spatial resolution in amplitude and phase contrast
TL;DR: Tory and experiments presented here show that this resolution can be obtained in radiation sensitive hydrated biological material by using shock frozen samples and optimized phase contrast shows structures inside the frozen-hydrated objects with high contrast.
Journal ArticleDOI
Imaging whole Escherichia coli bacteria by using single-particle x-ray diffraction
Jianwei Miao,Keith O. Hodgson,Tetsuya Ishikawa,Carolyn A. Larabell,Mark LeGros,Yoshinori Nishino +5 more
TL;DR: The successful recording and reconstruction of diffraction patterns from biological samples reported here represent an important step toward the potential of imaging single biomolecules at near-atomic resolution by combining single-particle diffraction with x-ray free electron lasers.