Zobrazeno 1 - 10
of 16
pro vyhledávání: '"J. M. Feldkamp"'
Autor:
Christoph Wild, P. Boye, Manfred Burghammer, Jens Patommel, Christian G. Schroer, Mikhail Lyubomirskiy, Andreas Schropp, J. M. Feldkamp, Sebastian Schoeder
Publikováno v:
Journal of Synchrotron Radiation. 26:1554-1557
The manufacturing steps and first tests of a refractive lens made of polycrystalline diamond are described. A fabrication process based on electron-beam lithography and deep reactive ion etching is introduced. Experimental tests on beamline ID13 at t
Autor:
Jens Patommel, D. Samberg, Sandra Stephan, Andreas Schwab, P. Boye, Andreas Schropp, J. M. Feldkamp, Nadja Reimers, Christian G. Schroer, Gerd Wellenreuther, Gerald Falkenberg
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 616:93-97
We describe the hard X-ray scanning microscope planned for the new synchrotron radiation source PETRA III at DESY in Hamburg, Germany. It is based on nanofocusing refractive X-ray lenses and is designed for two-dimensional mapping and scanning tomogr
Autor:
Peter Paufler, I. P. Shakhverdova, Rimma S. Bubnova, Andreas Timmann, Stephan V. Roth, Christian G. Schroer, J. M. Feldkamp, Stanislav K. Filatov, Rainer Gehrke, Marion Kuhlmann
Publikováno v:
physica status solidi (a). 206:1723-1726
Small-angle X-ray scattering (SAXS) has become a standard tool for the investigation of nano-structured materials with applications in many fields of science. Scanning tomography adds three-dimensional information to the method. We investigate the va
Autor:
Peter Müller-Buschbaum, Jean-François Moulin, J. M. Feldkamp, Petra Uhlmann, Fathollah Varnik, Volker Körstgens, Jan Perlich, C. Riekel, Manfred Stamm, David Magerl, M. Burghammer, Christian G. Schroer, R. Hengstler, Stephan V. Roth, Alexander Diethert, M. Gross
Publikováno v:
Journal of physics. Condensed matter : an Institute of Physics journal. 23(18)
The structure and flow of droplets on solid surfaces is investigated with imaging and scattering techniques and compared to simulations. To access nanostructures at the liquid-solid interface advanced scattering techniques such as grazing incidence s
Autor:
Marion Kuhlmann, Stephan V. Roth, Christian G. Schroer, Rainer Gehrke, J. M. Feldkamp, Andreas Timmann, Peter Müller-Buschbaum, Jens Patommel
Publikováno v:
Langmuir : the ACS journal of surfaces and colloids. 25(13)
We combine grazing-incidence small-angle X-ray scattering (GISAXS) with scanning X-ray microtomography to investigate the nanostructure in a dried gold/polystyrene nanocomposite drop. Local GISAXS structure factors are reconstructed at each position
Autor:
Manfred Burghammer, Andreas Schwab, Christian Riekel, Matthias Küchler, P. Boye, A. v. d. Hart, Christian G. Schroer, Robert Hoppe, Jens Patommel, Sandra Stephan, J. M. Feldkamp
Nanofocusing refractive x-ray lenses (NFLs) form the basis of a hard x-ray scanning microscope. They are characterized by their short focal length (~ 10 mm at 15 keV to 25 keV) and large numerical aperture, allowing for the generation of hard x-ray n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::efe0d5f811d185185be98f6f24e5b0ff
https://publica.fraunhofer.de/handle/publica/220863
https://publica.fraunhofer.de/handle/publica/220863
Publikováno v:
2008 IEEE Nuclear Science Symposium Conference Record.
Small-angle x-ray scattering (SAXS) is a standard method for non-destructive structure analysis on the nanometer scale with synchrotron radiation. Many soft condensed matter materials (e.g. natural fibers, polymer fibers, wood, polymer parts) are nan
Autor:
Andreas Schwab, S. Schöder, M. Burghammer, P. Boye, Andreas Schropp, J. M. Feldkamp, C. Riekel, Jens Patommel, Sandra Stephan, Christian G. Schroer
Publikováno v:
Physical review letters. 101(9)
Coherent x-ray diffraction imaging is an x-ray microscopy technique with the potential of reaching spatial resolutions well beyond the diffraction limits of x-ray microscopes based on optics. However, the available coherent dose at modern x-ray sourc
Autor:
Stoyko Fakirov, Andreas Timmann, Marion Kuhlmann, Norbert Stribeck, Ulrich Nöchel, Christian G. Schroer, J. M. Feldkamp
Publikováno v:
Macromolecules 41, 7637-7647 (2008). doi:10.1021/ma8015322
The nanostructure gradient along the fiber radius inside polymer strands is uncovered by small-angle X-ray scattering (SAXS) microbeam-scanning experiments and X-ray scattering fiber computer-tomography (XSF-CT) analysis. We notice restricted visibil
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::034654527717d72284b115f96db6fb3e
https://bib-pubdb1.desy.de/record/85000
https://bib-pubdb1.desy.de/record/85000
Autor:
M. Schweitzer, B. Lengeler, Christian G. Schroer, Jens Patommel, Walter H. Schroeder, J. M. Feldkamp, M. Dieckmann, Til Florian Gunzler, C. Stenzel
Publikováno v:
Review of scientific instruments 78, 073702-01-077302-8 (2007). doi:10.1063/1.2751094
We have designed and built a compact x-ray microtomography system to perform element mapping and absorption imaging by exploiting scanning fluorescence tomography and full-field transmission microtomography, respectively. It is based on a low power m