B
Bruno Lengeler
Researcher at RWTH Aachen University
Publications - 64
Citations - 3377
Bruno Lengeler is an academic researcher from RWTH Aachen University. The author has contributed to research in topics: X-ray optics & Lens (optics). The author has an hindex of 20, co-authored 64 publications receiving 3239 citations. Previous affiliations of Bruno Lengeler include European Synchrotron Radiation Facility.
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Journal ArticleDOI
A compound refractive lens for focusing high-energy X-rays
TL;DR: In this article, a simple procedure for fabricating refractive lenses that are effective for focusing of X-rays in the energy range 5-40 keV is described, and the problem associated with absorption is minimized by fabricating the lenses from low-atomic-weight materials.
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Imaging by parabolic refractive lenses in the hard X-ray range
Bruno Lengeler,Christian G. Schroer,J. Tümmler,Boris Benner,M. Richwin,Anatoly Snigirev,Irina Snigireva,Michael Drakopoulos +7 more
TL;DR: In this paper, the manufacture and properties of compound refractive lenses (CRLs) for hard X-rays with parabolic profile are described and a theory for imaging an X-ray source and an object illuminated by it has been developed, including the effects of attenuation (photoabsorption and Compton scattering) and of the roughness at the lens surface.
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Hard x-ray nanoprobe based on refractive x-ray lenses
Christian G. Schroer,O. Kurapova,Jens Patommel,P. Boye,J. M. Feldkamp,Bruno Lengeler,Manfred Burghammer,Christian Riekel,Laszlo Vincze,A. van der Hart,M. Küchler +10 more
TL;DR: Based on nanofocusing refractive x-ray lenses, a hard xray scanning microscope is currently being developed and is being implemented at beamline ID13 of the European Synchrotron Radiation Facility (Grenoble, France).
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A microscope for hard x rays based on parabolic compound refractive lenses
Bruno Lengeler,Christian G. Schroer,M. Richwin,J. Tümmler,Michael Drakopoulos,Anatoly Snigirev,Irina Snigireva +6 more
TL;DR: In this article, refractive x-ray lenses with a parabolic profile are described, similar to glass lenses for visible light, which can operate in the range from 2 to 50 degrees of freedom, allowing for magnifications up to 50.
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Focusing hard x rays to nanometer dimensions by adiabatically focusing lenses.
TL;DR: This work addresses the question of what is the smallest spot size that hard x rays can be focused to using refractive optics, and considers a thick refractive x-ray lens whose aperture is gradually (adiabatically) adapted to the size of the beam as it converges to the focus.