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Related Experiment Video

Updated: May 9, 2026

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

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

Published on: February 21, 2017

Snapshot 2D tomography via coded aperture x-ray scatter imaging.

Kenneth P MacCabe¹, Andrew D Holmgren, Martin P Tornai

¹Department of Electrical and Computer Engineering, Duke University, Durham, North Carolina 27708, USA.

|July 12, 2013

Summary

This study introduces a novel fan beam coded aperture X-ray scatter imaging system for rapid tomographic imaging. The system avoids scanning, enabling real-time video of object motion and material identification.

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Area of Science:

Medical Imaging
Physics
Materials Science

Background:

Traditional X-ray imaging often requires scanning, limiting real-time motion analysis.
Projection tomography typically necessitates mechanical scanning, hindering dynamic imaging applications.

Purpose of the Study:

To develop a fan beam coded aperture X-ray scatter imaging system for snapshot tomographic image acquisition.
To enable real-time imaging of dynamic processes and material characterization using X-ray scatter.

Main Methods:

Utilized a fan beam coded aperture with harmonic dependence for range determination and a shift code for cross-range determination.
Employed a forward-scatter configuration for imaging 2D objects.
Acquired tomographic video of in-plane motion using serial exposures.

Main Results:

Demonstrated the ability to acquire a tomographic image from each snapshot, eliminating the need for scanning motion.
Successfully imaged 2D objects and captured dynamic motion within a plane.
Developed a reconstruction algorithm capable of estimating scattered radiance angular dependence.

Conclusions:

The fan beam coded aperture system offers a non-scanning approach to X-ray tomography.
This technique facilitates real-time imaging of dynamic events and holds potential for materials imaging and identification.