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Updated: Jun 6, 2026
10:39
Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating
Published on: October 11, 2016
Hard x-ray phase contrast imaging using single absorption grating and hybrid semiconductor pixel detector
Frantisek Krejci1, Jan Jakubek, Martin Kroupa
1Institute of Experimental and Applied Physics, Czech Technical University in Prague, Horska 3a/22, Praha 2, Prague CZ-12800, Czech Republic.
The Review of Scientific Instruments
|December 8, 2010
Summary
This study introduces a simplified x-ray phase contrast imaging method using a single grating and microfocus source. It reduces scan time and radiation dose, enabling wider clinical applications.
Area of Science:
- Medical Imaging
- Physics
- Materials Science
Background:
- X-ray imaging is crucial for diagnostics.
- Phase contrast imaging enhances soft tissue visualization.
- Current methods can be complex and time-consuming.
Purpose of the Study:
- To develop a simplified x-ray phase contrast imaging technique.
- To reduce radiation dose and scanning time.
- To facilitate broader clinical adoption of phase contrast imaging.
Main Methods:
- Utilizes a single absorption grating and a microfocus x-ray source in a tabletop setup.
- Employs precise subpixel position determination of the grating's projected pattern.
- Acquires phase gradient and absorption images from a single exposure and projection.
Main Results:
- Demonstrates a simplified approach compared to phase-stepping methods.
- Significantly reduces scanning time and potentially radiation dose.
- Successfully tested on diverse objects, including biological samples.
Conclusions:
- The novel method simplifies phase contrast imaging.
- It offers reduced dose and faster acquisition, suitable for clinical settings.
- The technique's versatility may drive widespread use in medical imaging.
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