Gerald Falkenberg

发表

Simplex Volume Maximization (SiVM): A matrix factorization algorithm with non-negative constrains and low computing demands for the interpretation of full spectral X-ray fluorescence imaging data

Christian Bauckhage, Kristian Kersting, Koen Janssens, 2017 .

Ptychographic Nano-Analytical Microscope (PtyNAMi) at PETRA III: signal-to-background optimization for imaging with high sensitivity

Maik Kahnt, Christian G. Schroer, Gerald Falkenberg, 2019, Optical Engineering + Applications.

Full-field hard X-ray microscopy based on aberration-corrected Be CRLs

Christian G. Schroer, Johannes Hagemann, Martin Veselý, 2019, Optical Engineering + Applications.

PtyNAMi: ptychographic nano-analytical microscope at PETRA III: interferometrically tracking positions for 3D x-ray scanning microscopy using a ball-lens retroreflector

Maik Kahnt, Gerald Falkenberg, Felix Wittwer, 2017, Optical Engineering + Applications.

Non-negative factor analysis supporting the interpretation of elemental distribution images acquired by XRF

Christian Bauckhage, Kristian Kersting, Matthias Alfeld, 2014 .

Hard x-ray nano-beam characterization by ptychographic imaging

Frank Seiboth, Sebastian Schöder, Manfred Burghammer, 2011, Optical Engineering + Applications.

Iron-mineral-based magnetoreception in birds: the stimulus conducting system

Gerald Falkenberg, Branko Stahl, Gerta Fleissner, 2007, Journal of Ornithology.

Quantitative characterization of aberrations in x-ray optics

Maik Kahnt, Christian G. Schroer, Gerald Falkenberg, 2016, Optical Engineering + Applications.

22nd International Congress on X-Ray Optics and Microanalysis

Christian G. Schroer, Gerald Falkenberg, 2014 .

Aberration correction for hard x-ray focusing at the nanoscale

Bob Nagler, Frank Seiboth, Stefan Nolte, 2017, Optical Engineering + Applications.

X-ray fluorescence microtomography- and polycapillary-based confocal imaging using synchrotron radiation

Gerald Falkenberg, Laszlo Vincze, Frank E. Brenker, 2004, SPIE Optics + Photonics.

Nanofocused x-ray beams applied for mapping strain in core-shell nanowires

Lars Samuelson, Robert Feidenhans'l, Gerald Falkenberg, 2015, SPIE Optical Engineering + Applications.

Hard x-ray nanofocusing with refractive x-ray optics: full beam characterization by ptychographic imaging

Daniel Nilsson, Christian G. Schroer, Gerald Falkenberg, 2013, Optics & Photonics - Optical Engineering + Applications.

Maia X-ray fluorescence imaging: Capturing detail in complex natural samples

D. P. Siddons, Enzo Lombi, Matthias Alfeld, 2014 .

Kinoform diffractive lenses for efficient nano-focusing of hard X-rays.

Manuel Guizar-Sicairos, Andreas Menzel, Daniel Grolimund, 2014, Optics express.

Scanning Hard X-Ray Microscopy Based on Be CRLs

Christian G. Schroer, Gerald Falkenberg, Christian David, 2018, Microscopy and Microanalysis.

Avian Magnetoreception: Elaborate Iron Mineral Containing Dendrites in the Upper Beak Seem to Be a Common Feature of Birds

Henrik Mouritsen, Gerd Wellenreuther, Gerald Falkenberg, 2010, PloS one.

Non-negative matrix factorization for the near real-time interpretation of absorption effects in elemental distribution images acquired by X-ray fluorescence imaging.

Christian Bauckhage, Kristian Kersting, Matthias Alfeld, 2016, Journal of synchrotron radiation.

Hard X-ray nanofocusing at low-emittance synchrotron radiation sources

Christian G. Schroer, Gerald Falkenberg, G. Falkenberg, 2014, Journal of synchrotron radiation.

Perfect X-ray focusing via fitting corrective glasses to aberrated optics

Bob Nagler, Tobias Ullsperger, Stefan Nolte, 2017, Nature Communications.

Evidence for Degradation of the Chrome Yellows in Van Gogh's Sunflowers: A Study Using Noninvasive In Situ Methods and Synchrotron-Radiation-Based X-ray Techniques.

Koen Janssens, Costanza Miliani, Brunetto Giovanni Brunetti, 2015, Angewandte Chemie.

Hard x-ray scanning microscopy with coherent radiation: Beyond the resolution of conventional x-ray microscopes

Christian G. Schroer, Gerd Wellenreuther, Gerald Falkenberg, 2012 .

Trends in environmental science using microscopic X-ray fluorescence

Gerald Falkenberg, G. Falkenberg, U. Fittschen, 2011 .

Hard x-ray nanofocusing by refractive lenses of constant thickness

Christian G. Schroer, Karola Richter, Johann W. Bartha, 2014 .

High-resolution chemical imaging of gold nanoparticles using hard x-ray ptychography

Christian G. Schroer, Gerd Wellenreuther, Gerald Falkenberg, 2013 .

Structure and Composition of Isolated Core-Shell (In,Ga) N/GaN Rods Based on Nanofocus X-Ray Diffraction and Scanning Transmission Electron Microscopy

Maik Kahnt, Achim Trampert, Christian G. Schroer, 2017 .

Combined Computed Nanotomography and Nanoscopic X-ray Fluorescence Imaging of Cobalt Nanoparticles in Caenorhabditis elegans.

Koen Janssens, Remi Tucoulou, Alexandra Pacureanu, 2017, Analytical chemistry.

Correlation between Chemical and Morphological Heterogeneities in LiNi0.5Mn1.5O4 Spinel Composite Electrodes for Lithium-Ion Batteries Determined by Micro-X-ray Fluorescence Analysis

Gerald Falkenberg, Michael Fröba, Ulrike Boesenberg, 2015 .

Assessing the origin and fate of Cr, Ni, Cu, Zn, Pb, and V in industrial polluted soil by combined microspectroscopic techniques and bulk extraction methods.

Koen Janssens, Bart Vekemans, Gerald Falkenberg, 2007, Environmental science & technology.

X-ray fluorescence spectrometry for high throughput analysis of atmospheric aerosol samples: The benefits of synchrotron X-rays

Daniel Grolimund, Gerald Falkenberg, Markus Furger, 2008 .

Strain mapping in an InGaN/GaN nanowire using a nano-focused x-ray beam

Lars Samuelson, Robert Feidenhans'l, Gerald Falkenberg, 2015 .

Dual detection X-ray fluorescence cryotomography and mapping on the model organism Daphnia magna

Bert Masschaele, Colin R. Janssen, Bart Vekemans, 2010, Powder Diffraction.

Three-dimensional trace element analysis by confocal X-ray microfluorescence imaging.

Bart Vekemans, Andrea Somogyi, Gerald Falkenberg, 2004, Analytical chemistry.

Beamstop-based low-background ptychography to image weakly scattering objects.

Gerald Falkenberg, Robert Hoppe, Juliane Reinhardt, 2017, Ultramicroscopy.

Bragg coherent x-ray diffractive imaging of a single indium phosphide nanowire

Lars Samuelson, Christian G. Schroer, Robert Feidenhans'l, 2016 .

In vivo investigation of the distribution and the local speciation of selenium in Allium cepa L. by means of microscopic X-ray absorption near-edge structure spectroscopy and confocal microscopic X-ray fluorescence analysis.

Koen Janssens, Ewa Bulska, Gerald Falkenberg, 2006, Analytical chemistry.

Hard X‐Ray Scanning Microscopy with Coherent Diffraction Contrast

Christian G. Schroer, Manfred Burghammer, Gerd Wellenreuther, 2011 .

Three-dimensional elemental imaging by means of synchrotron radiation micro-XRF: developments and applications in environmental chemistry

Bert Masschaele, Colin R. Janssen, L. Van Hoorebeke, 2008, Analytical and bioanalytical chemistry.

Nanofocusing with aberration-corrected rotationally parabolic refractive X-ray lenses

Maik Kahnt, Christoph Rau, Christian G. Schroer, 2018, Journal of synchrotron radiation.

Focusing hard x rays beyond the critical angle of total reflection by adiabatically focusing lenses

Christian Wenzel, Christian G. Schroer, Karola Richter, 2017 .

Combined use of synchrotron radiation based micro-X-ray fluorescence, micro-X-ray diffraction, micro-X-ray absorption near-edge, and micro-fourier transform infrared spectroscopies for revealing an alternative degradation pathway of the pigment cadmium yellow in a painting by Van Gogh.

Koen Janssens, Joris Dik, Gerald Falkenberg, 2012, Analytical chemistry.

Characterization of a polycapillary lens for use in micro‐XANES experiments

Koen Janssens, Ewa Bulska, Gerald Falkenberg, 2003 .

Hard X-ray nanoprobe at beamline P06 at PETRA III

Christian G. Schroer, Gerd Wellenreuther, Gerald Falkenberg, 2010 .

Speciation of Actinides in Granite Subjected to Tracer Studies

Peter Cloetens, Melissa A. Denecke, Bernhard Kienzler, 2011 .

Real-world emission factors for antimony and other brake wear related trace elements: size-segregated values for light and heavy duty vehicles.

Gerald Falkenberg, Markus Furger, Urs Baltensperger, 2009, Environmental science & technology.