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$Synchrotron X-ray Microdiffraction and Fluorescence Imaging of Mineral and Rock Samples$

Synchrotron X-ray Microdiffraction and Fluorescence Imaging of Mineral and Rock Samples

Published on: June 19, 2018

X-ray fan beam coded aperture transmission and diffraction imaging for fast material analysis.

Stefan Stryker¹, Joel A Greenberg^1,2, Shannon J McCall³

¹Medical Physics Graduate Program, Duke University, Durham, NC, USA.

Scientific Reports

|May 20, 2021

Summary

This study introduces a novel X-ray imaging system combining transmission and diffraction for rapid, non-destructive material identification. The system achieves high spatial resolution and spectral accuracy, enabling diverse industrial and biomedical applications.

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$Synthesis and Microdiffraction at Extreme Pressures and Temperatures$

Synthesis and Microdiffraction at Extreme Pressures and Temperatures

Published on: October 7, 2013

Area of Science:

Physics
Materials Science
Imaging Technology

Background:

X-ray transmission imaging offers high-resolution shape and density measurements.
X-ray diffraction (XRD) imaging identifies materials based on molecular structure.
Combining these methods promises enhanced material identification but is hindered by XRD's slow speed and low resolution.

Purpose of the Study:

To develop a novel X-ray imaging system integrating transmission and diffraction capabilities.
To enable rapid, accurate, and non-destructive material imaging for industrial and biomedical applications.
To overcome the limitations of existing XRD imaging techniques.

Main Methods:

Development of a novel X-ray fan beam coded aperture system using commercially available components.
Utilized a 160 kV Bremsstrahlung X-ray source.
Achieved a spatial resolution of approximately 1x1 mm² and spectral accuracy over 95% with 15-second exposures per slice.

Main Results:

Demonstrated rapid and accurate non-destructive imaging of industrial and biomedical specimens.
Achieved high spatial resolution (≈1x1 mm²) and spectral accuracy (>95%).
Showcased improved material differentiation compared to transmission imaging alone within practical scan times.

Conclusions:

The developed X-ray imaging system effectively combines transmission and diffraction for enhanced material analysis.
The system's speed and accuracy make it suitable for geological, pharmaceutical, and medical applications.
This technology represents a significant advancement for non-destructive material characterization.