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Updated: Jun 10, 2025

Dynamic Pore-scale Reservoir-condition Imaging of Reaction in Carbonates Using Synchrotron Fast Tomography

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Dynamic X-ray Coherent Diffraction Analysis: Bridging the Time Scales between Imaging and Photon Correlation

Gerard N Hinsley¹, Fabian Westermeier¹, Bihan Wang^1,2

¹Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, Hamburg 22607, Germany.

|October 18, 2024

Summary

This summary is machine-generated.

Simultaneously using Coherent X-ray Diffractive Imaging (CXDI) and X-ray Photon Correlation Spectroscopy (XPCS) allows for detailed in situ study of nanoparticle Brownian motion and agglomeration. This combined approach achieves 22 ms temporal resolution for dynamic material analysis.

Keywords:

X-ray photon correlation spectroscopy coherent X-ray diffractive imaging dynamics nanoparticles

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Area of Science:

Materials Science
Condensed Matter Physics
Nanotechnology

Background:

Advanced X-ray sources and detectors enable *in situ* and *operando* material studies.
Coherent X-ray diffraction techniques like CXDI and XPCS offer complementary insights.
Simultaneous application of CXDI and XPCS has been challenging due to signal-to-noise constraints.

Purpose of the Study:

To demonstrate a novel strategy for the simultaneous application of CXDI and XPCS.
To investigate the Brownian motion and agglomeration of colloidal gold nanoparticles *in situ*.
To achieve high temporal resolution in combined X-ray diffraction measurements.

Main Methods:

Utilized a simultaneous CXDI and XPCS approach.
Studied 200 nm colloidal gold nanoparticles in a glycerol-water mixture.
Achieved a temporal resolution of 22 ms for CXDI.

Main Results:

Successfully visualized the agglomeration process of gold nanoparticles.
Quantified the spatiotemporal dynamics accessible with the combined techniques.
Demonstrated the feasibility of high-temporal-resolution CXDI.

Conclusions:

The simultaneous use of CXDI and XPCS is a viable strategy for *in situ* material dynamics studies.
This combined method provides enhanced understanding of nanoparticle behavior, including agglomeration.
The demonstrated 22 ms temporal resolution opens new avenues for dynamic *operando* investigations.