X-ray Microspectroscopy and Ptychography on Nanoscale Structures in Rock Varnish

JD Förster, I Bykova, DS Macholdt… - The Journal of …, 2021 - ACS Publications
X-ray microspectroscopy is a powerful analytical method in geoscientific and environmental
research as it provides a unique combination of nanoscale imaging with high spectroscopic …

Soft X-ray spectro-ptychography for air pollution particulates

H Liu, Z Xu, C Wang, X Tao, Y Wang… - Microscopy and …, 2018 - cambridge.org
X-ray ptychography emerged in the late 2000s as a lensless imaging technique that
combined the advantages of scanning transmission X-ray microscopy (STXM) and coherent …

[PDF][PDF] Scanning transmission x-ray microscopy at the Canadian Light Source: Progress and selected applications in geosciences

J Wang, JH Li - At. Spectrosc, 2022 - researchgate.net
Synchrotron-based scanning transmission X-ray microscopy (STXM) efficiently integrates X-
ray microscopy and X-ray absorption spectroscopy (XAS) to provide quantitative, chemically …

[PDF][PDF] Making chemical sense of phase in soft X-ray spectroptychography

S Joseph, W Jian, U Stephen - 2023 - harvest.usask.ca
Spectroptychography is being used to realize a significant improvement in the spatial
resolution of x-ray spectromicroscopy, allowing chemical microanalysis at finer spatial …

An ultrahigh-resolution soft x-ray microscope for quantitative analysis of chemically heterogeneous nanomaterials

DA Shapiro, S Babin, RS Celestre, W Chao… - Science …, 2020 - science.org
The analysis of chemical states and morphology in nanomaterials is central to many areas of
science. We address this need with an ultrahigh-resolution scanning transmission soft x-ray …

[HTML][HTML] Artifacts from manganese reduction in rock samples prepared by focused ion beam (FIB) slicing for X-ray microspectroscopy

DS Macholdt, JD Förster, M Müller… - … , methods and data …, 2019 - gi.copernicus.org
The spatial distribution of transition metal valence states is of broad interest in the
microanalysis of geological and environmental samples. An example is rock varnish, a …

From Oil Field to Ptychography: Applications of FIB SEM in NanoGeoScience

KN Dalby, HO Serensen, D Mueter, D Jha… - Microscopy and …, 2014 - cambridge.org
Hydrocarbons fuel our current global economy and will likely also do so in the foreseeable
future, until greener fuels partly will replace hydrocarbons. Future production of …

SQUARREL: Scattering quotient analysis to retrieve the ratio of elements in x-ray ptychography

CT Liao, YH Lo, J Zhou, A Rana, CS Bevis… - Microscopy and …, 2019 - cambridge.org
Coherent X-ray and extreme ultraviolet (EUV) beams can visualize and characterize the
structure and functions of material, from tens of microns down to nanometer scales [1, 2] …

Chemical state visualization using x-ray spectroscopic ptychography in SPring-8

N Ishiguro - X-Ray Nanoimaging: Instruments and Methods VI, 2023 - spiedigitallibrary.org
X-ray ptychography is one of the coherent x-ray diffractive imaging techniques with the
object of interest scanned in small steps by an overlapping probe. The collected diffraction …

Applications of soft X-ray spectromicroscopy in material and environmental sciences

TH Yoon - Applied Spectroscopy Reviews, 2009 - Taylor & Francis
In soft X-ray spectromicroscopy, significant advances were made during last few decades,
as a result of improvements in X-ray optics and greater availability of third-generation …