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X-ray Imaging

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German physicist Wilhelm Röntgen (1845–1923) was experimenting with electrical current when he discovered that a mysterious and invisible "ray" would pass through his flesh but leave an outline of his bones on a screen coated with a metal compound. In 1895, Röntgen made the first durable record of the internal parts of a living human: an "X-ray" image (as it came to be called) of his wife’s hand. Scientists worldwide quickly began their own experiments with X-rays, and by 1900, X-ray was widely...

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Related Experiment Video

Updated: Jun 11, 2026

Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating

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Published on: October 11, 2016

Large phase-stepping approach for high-resolution hard X-ray grating-based multiple-information imaging.

Zhifeng Huang¹, Zhiqiang Chen, Li Zhang

¹Department of Engineering Physics, Tsinghua University, Beijing 100084, China. huangzhifeng@mail.tsinghua.edu.cn

|July 1, 2010

Summary

A new large phase-stepping approach for hard X-ray grating imaging simplifies equipment needs. This advancement in grating-based multiple-information imaging technology lowers resolution requirements for wider commercial use.

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Area of Science:

Medical imaging
Industrial applications
X-ray physics

Background:

High-resolution hard X-ray grating-based imaging offers simultaneous attenuation, refraction, and scattering data.
This technology is considered a next-generation imaging method for medical and industrial fields.

Purpose of the Study:

To present a large phase-stepping approach that reduces the need for high positioning resolution.
To demonstrate the feasibility of this new approach through theoretical deduction and experimental validation.

Main Methods:

A large phase-stepping technique with significantly lower movement resolution was developed.
The approach was theoretically analyzed and experimentally verified using a grating-based imaging setup.

Main Results:

The new method effectively substitutes the conventional high-positioning-resolution phase-stepping approach.
Experiments confirmed the viability of the lower-resolution technique.

Conclusions:

The developed large phase-stepping approach relaxes stringent positioning resolution and environmental requirements.
This innovation facilitates the future commercialization of grating-based multiple-information imaging technology.