Layout and first results of the nanotomography endstation at the P05 beamline at PETRA III

Ogurreck, Malte; Greving, Imke; Marschall, Felix; Vogt, Harald; Last, Arndt; Rosário, Jefferson J. do; Leib, Elisabeth W.; Beckmann, Felix; Wilde, Fabian; Müller, Martin

doi:10.1063/1.4937502

Cited by 2 publications

(1 citation statement)

References 15 publications

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“…Only nano-holotomography at the European Synchrotron Radiation Facility, which uses Kirkpatrick-Baez (KB) mirrors, has been practically used in the x-ray region over 30 keV. [15][16][17] Nano-CT, which uses compound refractive lenses (CRLs) for energies up to 50 keV, is equipped at the P05 imaging beamline of PETRA III, [18][19][20] although any results involving high-energy x-ray nano-CT are yet to be reported. Even if the conditions are lowered to 20 keV, only the nano-CT that uses a Fresnel zone plate (FZP) at the Swiss Light Source can be considered a high-energy-compatible system.…”

Section: Introductionmentioning

confidence: 99%

High-energy x-ray nanotomography introducing an apodization Fresnel zone plate objective lens

Takeuchi

Uesugi

et al. 2021

Review of Scientific Instruments

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In this study, high-energy x-ray nanotomography (nano-computed tomography, nano-CT) based on full-field x-ray microscopy was developed. Fine two-dimensional and three-dimensional (3D) structures with linewidths of 75 nm-100 nm were successfully resolved in the x-ray energy range of 15 keV-37.7 keV. The effective field of view was ∼60 μm, and the typical measurement time for one tomographic scan was 30 min-60 min. The optical system was established at the 250-m-long beamline 20XU of SPring-8 to realize greater than 100× magnification images. An apodization Fresnel zone plate (A-FZP), specifically developed for high-energy x-ray imaging, was used as the objective lens. The design of the A-FZP for high-energy imaging is discussed, and its diffraction efficiency distribution is evaluated. The spatial resolutions of this system at energies of 15 keV, 20 keV, 30 keV, and 37.7 keV were examined using a test object, and the measured values are shown to be in good agreement with theoretical values. High-energy x-ray nano-CT in combination with x-ray micro-CT is applied for 3D multiscale imaging. The entire bodies of bulky samples, ∼1 mm in diameter, were measured with the micro-CT, and the nano-CT was used for nondestructive observation of regions of interest. Examples of multiscale CT measurements involving carbon steel, mouse bones, and a meteorite are discussed.

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Section: Introductionmentioning

confidence: 99%

High-energy x-ray nanotomography introducing an apodization Fresnel zone plate objective lens

Takeuchi

Uesugi

et al. 2021

Review of Scientific Instruments

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Combination of Digital Image Correlation (DIC) and in situ 3D-μ-CT in the analysis of the relationship between strains and porosity under creep loading

Camin

Hornig-Klamroth

Bentheim

2023

Practical Metallography

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In situ 3D μ-XCT allows the time and space resolved measurement and analysis of material damage in the component volume, whereas the Digital Image Correlation (DIC) is a 2D method for the analysis of deformation measured on the surfaces of components. In situ 3D μ-XCT measurements were performed on cylindrical specimen made of SiC particle reinforced titanium MMC (MMC: Metal Matrix Composite) (15 % SiC particles) during creep load. The formation and evolution of voids were subsequently analyzed. Due to the rotationally symmetric sample geometry, the analysis of the deformation in the interior of the material by DIC using 2D slices is possible and evident. The dot pattern required to calculate the strain using DIC (speckle pattern) is provided by the intrinsic particle reinforcement of the MMCs. Temporally and locally changing and time-variant strain fields in both the tensile as well as the compressive range could be detected correlating with void formation and development area.

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Layout and first results of the nanotomography endstation at the P05 beamline at PETRA III

Cited by 2 publications

References 15 publications

High-energy x-ray nanotomography introducing an apodization Fresnel zone plate objective lens

High-energy x-ray nanotomography introducing an apodization Fresnel zone plate objective lens

Combination of Digital Image Correlation (DIC) and in situ 3D-μ-CT in the analysis of the relationship between strains and porosity under creep loading

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