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Related Concept Videos

X-ray Imaging01:24

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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...
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Related Experiment Video

Updated: Apr 20, 2026

High Spatial Resolution Chemical Imaging of Implant-Associated Infections with X-ray Excited Luminescence Chemical Imaging Through Tissue
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Intense high repetition rate Mo Kα x-ray source generated from laser solid interaction for imaging application.

K Huang1, M H Li1, W C Yan1

  • 1Beijing National Laboratory of Condensed Matter Physics, Institute of Physics, CAS, Beijing 100190, China.

The Review of Scientific Instruments
|November 29, 2014
PubMed
Summary

We developed an efficient molybdenum K-alpha (Mo Kα) x-ray source using laser-plasma interaction. This high-resolution source enables rapid radiography and ultrafast studies of matter.

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Area of Science:

  • Laser-driven plasma physics
  • X-ray generation and applications
  • Materials science

Background:

  • Traditional X-ray sources face limitations in resolution and cost.
  • Laser-produced plasma offers a promising avenue for novel X-ray generation.
  • Developing efficient, high-resolution X-ray sources is crucial for advanced imaging.

Purpose of the Study:

  • To report an efficient Mo Kα X-ray source using femtosecond laser pulses.
  • To characterize the intensity, spatial resolution, and potential applications of the generated X-rays.
  • To demonstrate the feasibility of laser-plasma X-ray sources for radiography and ultrafast studies.

Main Methods:

  • Interaction of femtosecond Ti:sapphire laser pulses with a solid Molybdenum target.
  • Operation at a 1 kHz repetition rate.
  • Characterization of Mo Kα X-ray intensity and spatial resolution.

Main Results:

  • Achieved Mo Kα X-ray intensity of 4.7 × 10^10 photons sr⁻¹ s⁻¹.
  • Measured spatial resolution of 26 lp/mm.
  • Demonstrated high-resolution in-line X-ray radiography of samples in under 30 seconds.

Conclusions:

  • Laser-plasma hard X-ray sources offer a low-cost, high-resolution alternative for radiography.
  • The developed source is suitable for ultrafast X-ray pump-probe studies.
  • This technology opens new possibilities for materials analysis and biological imaging.