Výsledky vyhledávání - "Martin Krenkel"

Akademický článek

Propagation-based phase-contrast tomography for high-resolution lung imaging with laboratory sources

Autor: Martin Krenkel, Mareike Töpperwien, Christian Dullin, Frauke Alves, Tim Salditt

Publikováno v: AIP Advances, Vol 6, Iss 3, Pp 035007-035007-6 (2016)

We have performed high-resolution phase-contrast tomography on whole mice with a laboratory setup. Enabled by a high-brilliance liquid-metal-jet source, we show the feasibility of propagation-based phase contrast in local tomography even in the prese

Externí odkaz: https://doaj.org/article/76497ed72f0c448b84c194a70968595a

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Automated defect detection for fast evaluation of real inline CT scans

Autor: Lukas Schulte, Christian Wojek, Martin Krenkel, Weaam Alkhaldi, Stephan Tschechne, Eno Toeppe, Maxim Schlotterbeck

Publikováno v: Nondestructive Testing and Evaluation. 35:266-275

In this paper, we present a fully automatic evaluation approach that can be used for fast inline CT scanning. In contrast to classical defect-recognition algorithms, this approach does not require ...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ac3ea26fe6a3abd708c86df9333e7750
https://doi.org/10.1080/10589759.2020.1785446

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Improving the dimensional accuracy of 3D x-ray microscopy data

Autor: Herminso Villarraga-Gómez, Naomi Kotwal, Rachna Parwani, Daniel Weiß, Martin Krenkel, Wolfgang Kimmig, Christoph Graf Vom Hagen

Publikováno v: Measurement Science and Technology. 33:074002

X-ray microscopy instruments have the unique ability to achieve nondestructive imaging with higher spatial resolutions than traditional x-ray computed tomography (CT) systems. This unique ability is of interest to industrial quality control entities,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1496b2f5c949d7987f416c8e75cd94b3
https://doi.org/10.1088/1361-6501/ac5a30

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Nanotomographic evaluation of precipitate structure evolution in a Mg–Zn–Zr alloy during plastic deformation

Autor: Alexander Hermann, Martin Krenkel, Berit Zeller-Plumhoff, Regine Willumeit-Römer, Dmytro Orlov, Daniele Pelliccia, Anna Lena Robisch, Elena Longo, Yuri Estrin, Hanna Slominska, Tim Salditt, Malte Storm

Publikováno v: Zeller-Plumhoff, B.; Robisch, A.; Pelliccia, D.; Longo, E.; Slominska, H.; Hermann, A.; Krenkel, M.; Storm, M.; Estrin, Y.; Willumeit-Römer, R.; Salditt, T.; Orlov, D.: Nanotomographic evaluation of precipitate structure evolution in a Mg–Zn–Zr alloy during plastic deformation. In: Scientific Reports. Vol. 10 (2020) 16101 . (DOI: /10.1038/s41598-020-72964-x)
Scientific Reports
Scientific Reports, Vol 10, Iss 1, Pp 1-9 (2020)
Scientific reports 10(1), 16101 (2020). doi:10.1038/s41598-020-72964-x

Scientific reports 10(1), 16101 (2020). doi:10.1038/s41598-020-72964-x
Magnesium and its alloys attract increasingly wide attention in various fields, ranging from transport to medical solutions, due to their outstanding structural and degradati

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a19771fd1fb02647244558237839ad71

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Combined scanning X-ray diffraction and holographic imaging of cardiomyocytes

Autor: Martin Krenkel, Stefan Luther, Marten Bernhardt, Claudia Richter, Jan-David Nicolas, Tim Salditt

Publikováno v: Journal of Applied Crystallography. 50:612-620

This article presents scanning small-angle X-ray scattering (SAXS) experiments on the actomyosin assemblies in freeze-dried neo-natal rat cardiac muscle cells. By scanning the cells through a sub-micrometre focused beam, the local structure and filam

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d4185a575e14cf2fe5455a7ed455b825
https://doi.org/10.1107/s1600576717003351

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A phase-retrieval toolbox for X-ray holography and tomography

Autor: Anna Lena Robisch, Simon Maretzke, Johannes Hagemann, Tim Salditt, Mareike Töpperwien, Leon M. Lohse, Martin Krenkel

Publikováno v: Journal of Synchrotron Radiation
Journal of synchrotron radiation 27(3), 852-859 (2020). doi:10.1107/S1600577520002398

This article describes scientific software made publicly available for phase retrieval in X-ray propagation imaging. The package is called HoloTomoToolbox and comprises a set of algorithms for phase retrieval in the direct-contrast regime, as well as

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f5ad84798fcde17922262e1513c68e83
https://pubmed.ncbi.nlm.nih.gov/32381790

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Myelinated mouse nerves studied by X-ray phase contrast zoom tomography

Autor: Martin Krenkel, Wiebke Möbius, Tim Salditt, Matthias Bartels, Peter Cloetens

Publikováno v: Journal of Structural Biology. 192:561-568

We have used X-ray phase contrast tomography to resolve the structure of uncut, entire myelinated optic, saphenous and sciatic mouse nerves. Intrinsic electron density contrast suffices to identify axonal structures. Specific myelin labeling by an os

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4977e1112e1dc061671f9b13e4248f79
https://doi.org/10.1016/j.jsb.2015.11.001

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Functionalized synchrotron in-line phase-contrast computed tomography: a novel approach for simultaneous quantification of structural alterations and localization of barium-labelled alveolar macrophages within mouse lung samples

Autor: Giuliana Tromba, Martin Krenkel, Stefania Biffi, Tim Salditt, Simeone Dal Monego, Andrea Markus, Chiara Garrovo, Frauke Alves, Andrea Lorenzon, Agostino Accardo, Emanuel Larsson, Sara Mohammadi, Christian Dullin, Joanna Napp

Publikováno v: Journal of Synchrotron Radiation

This study presents an approach to increase the sensitivity of lung computed tomography (CT) imaging by utilizing in-line phase contrast CT in combination with single-distance phase-retrieval algorithms and a dedicated image-processing regime. As dem

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9afc08bdfc438dc244706e0ddcd1c33a
https://doi.org/10.1107/s1600577514021730

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Four dimensional material movies: High speed phase-contrast tomography by backprojection along dynamically curved paths

Autor: Martin Krenkel, Tim Salditt, A. Ruhlandt, Rajmund Mokso, Mareike Töpperwien

Publikováno v: Scientific Reports
Scientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)

We present an approach towards four dimensional (4d) movies of materials, showing dynamic processes within the entire 3d structure. The method is based on tomographic reconstruction on dynamically curved paths using a motion model estimated by optica

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ee447b90fcb24d773093c9c9f839491a
https://pubmed.ncbi.nlm.nih.gov/29567974

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Three-dimensional mouse brain cytoarchitecture revealed by laboratory-based x-ray phase-contrast tomography

Autor: Mareike Töpperwien, Franziska Stöber, Anja M. Oelschlegel, Martin Krenkel, Daniel Vincenz, Jürgen Goldschmidt, Tim Salditt

Publikováno v: 'Scientific Reports ', vol: 7, pages: 42847-1-42847-8 (2017)
Scientific reports, 7:42847
Scientific Reports

Studies of brain cytoarchitecture in mammals are routinely performed by serial sectioning of the specimen and staining of the sections. The procedure is labor-intensive and the 3D architecture can only be determined after aligning individual 2D secti

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e45fef8ac4b00bd9a32cdc41bdba1df3
https://doi.org/10.1038/srep42847

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