Posts tagged Technique: Ptychography
VIDEO - CoWork DUO webinar: Upscaling x-ray nanoimaging to macroscopic objects - Ptychographic image reconstruction using automatic differentiation: first and second order methods
VIDEO - CoWork DUO webinar: Upscaling x-ray nanoimaging to macroscopic objects - Ptychographic image reconstruction using automatic differentiation: first and second order methods

Challenges in upscaling x-ray nanoimaging and using modern automatic differentiation (AD) methods to design gradient-based inversion procedures that do not require explicit calculations of complex closed-form gradient expressions.

Read More
SeriesProbe: X-rays/light, Method: Imaging, Technique: Ptychography
VIDEO - CoWork series - Atomic Resolution Imaging by Electron Ptychography, with David A. Muller
VIDEO - CoWork series - Atomic Resolution Imaging by Electron Ptychography, with David A. Muller

Electron microscopes use electrons with wavelengths of a few picometers, and are potentially capable of imaging individual atoms in solids at a resolution ultimately set by the intrinsic size of an atom. With recent advances in detector technology and reconstruction algorithms, the resolution of…

Read More
SeriesProbe: Other, Probe: X-rays/light, Method: Scattering, Technique: Ptychography
VIDEO - CoWork series - Magnetic chirality in multilayers probed by Soft x-ray (coherent) scattering, with Nicolas Jaouen
VIDEO - CoWork series - Magnetic chirality in multilayers probed by Soft x-ray (coherent) scattering, with Nicolas Jaouen

Many current forthcoming applications of magnetic materials involve heterostructures or alloys containing magnetic and non-magnetic elements. X-ray Resonant (Coherent) Scattering is the technique of choice to probe such phenomena thanks to its element-selectivity and spatial sensitivity.

Read More
SeriesProbe: X-rays/light, Method: Scattering, Technique: Ptychography, Technique: Holography, Technique: Coherent X-ray Scattering, Technique: XRMS, Technique: REXS
VIDEO - CoWork series - Holographic tomography as a new tool for bioimaging and 3d Virtual Patho‐Histology of Lung Tissue from Covid‐19 Patients, with Tim Salditt & Marina Eckermann
VIDEO - CoWork series - Holographic tomography as a new tool for bioimaging and 3d Virtual Patho‐Histology of Lung Tissue from Covid‐19 Patients, with Tim Salditt & Marina Eckermann

The talk explains how the central challenge of inverting the coherent diffraction pattern can be mastered by different reconstruction algorithms in the optical far and nearfield. In particular, it presents the full field projection imaging at high magnification, recorded by illumination with…

Read More
SeriesProbe: X-rays/light, Method: Imaging, Technique: Ptychography, Technique: CT, Technique: Holography
VIDEO - CoWork series - Investigating the early life on Earth with nanoscale X-ray coherent imaging, with Lara Maldani
VIDEO - CoWork series - Investigating the early life on Earth with nanoscale X-ray coherent imaging, with Lara Maldani

The presentation presents how coherent 3D nanoimaging, particularly ptychographic X-ray computed tomography (PXCT), can help us to understand fossil microorganisms and fossilization processes. Speaker: Lara Maldanis, ISTerre, at Université Grenoble Alpes, France The webinar is part of the LINXS…

Read More
SeriesProbe: X-rays/light, Method: Imaging, Technique: Ptychography, Technique: PXCT, Technique: PyXL
VIDEO - CoWork series - The new Carnaúba beamline at the new Brazilian synchrotron source with Carlos Sato Baraldi Dias
VIDEO - CoWork series - The new Carnaúba beamline at the new Brazilian synchrotron source with Carlos Sato Baraldi Dias

In the past years, Brazil has jumped from a 2nd generation machine to a 4th generation synchrotron source. This jump on generation has not only increased flux, brightness, coherence, and so forth but has opened unprecedented opportunities for the Brazilian scientific community. This presentation…

Read More
SeriesProbe: X-rays/light, Method: Imaging, Method: Scattering, Method: Spectroscopy, Technique: Ptychography, Technique: XRD, Technique: XRF, Technique: CT, Technique: XAS, Technique: Bragg Ptychography, Technique: Luminescence
VIDEO - CoWork series - X-ray coherence-based imaging applied to 3D cellular biology, with Carla Cristina Pólo
VIDEO - CoWork series - X-ray coherence-based imaging applied to 3D cellular biology, with Carla Cristina Pólo

X-ray coherence-based imaging comprises several powerful techniques which allow investigations in the different scientific fields, including biology and life sciences. The non-crystalline nature of such samples can be explored by coherent diffractive imaging (CDI) and ptychography and cellular…

Read More
SeriesProbe: X-rays/light, Method: Imaging, Technique: CDI, Technique: Ptychography, Technique: Holography, Technique: PXCT
VIDEO - CoWork series - An Introduction to hard X-ray Coherent Diffractive Imaging in Bragg geometry and quantitative phase retrieval, with Dmitry Dzhigaev
VIDEO - CoWork series - An Introduction to hard X-ray Coherent Diffractive Imaging in Bragg geometry and quantitative phase retrieval, with Dmitry Dzhigaev

Coherent Diffraction Imaging in Bragg geometry is used to study crystalline samples to access, along with morphology, also information on strain fields, defects and other atomic -scale features. This webinar will focus on the following points..... * the basic concepts of the technique and data…

Read More
SeriesProbe: X-rays/light, Method: Imaging, Technique: BCDI, Technique: Ptychography
VIDEO - CoWork Series - Introduction to coherent X-ray imaging, with Prof. Pablo Villanueva-Perez
VIDEO - CoWork Series - Introduction to coherent X-ray imaging, with Prof. Pablo Villanueva-Perez

This webinar presents the fundamentals behind coherent X-ray imaging techniques that exploit the high-brilliance provided by X-ray free-electron lasers and diffraction-limited storage rings. For such purpose, we will introduce the fundaments of i) interactions of X-rays with matter, ii) coherence…

Read More
SeriesProbe: X-rays/light, Method: Imaging, Technique: CDI, Technique: Ptychography, Technique: CT, Technique: Near-field (in-line) Holography