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Updated: Aug 4, 2026
08:51
Non-invasive 3D-Visualization with Sub-micron Resolution Using Synchrotron-X-ray-tomography
Published on: May 27, 2008
An X-ray microprobe facility using synchrotron radiation
B M Gordon1, K W Jones, A L Hanson
1Department of Applied Science, Brookhaven National Laboratory, Upton, NY 11973.
Biological Trace Element Research
|July 1, 1990
Summary
A new X-ray microprobe using synchrotron radiation (SR) offers trace elemental analysis at micrometer resolution. This advanced technique achieves high sensitivity in biological samples, enabling detailed biomedical studies.
Area of Science:
- Analytical Chemistry
- Biomedical Engineering
- Physics
Background:
- Development of advanced analytical techniques is crucial for trace elemental analysis.
- Synchrotron radiation (SR) offers unique properties for high-resolution elemental mapping.
- Existing methods may lack the spatial resolution or sensitivity required for certain biological samples.
Purpose of the Study:
- To develop and characterize an X-ray microprobe for trace elemental analysis at micrometer spatial resolutions.
- To evaluate the sensitivity and capabilities of the microprobe for biological samples.
- To demonstrate the application of the developed microprobe in a biomedical study.
Main Methods:
- Utilizing synchrotron radiation (SR) for X-ray excitation.
- Employing two beamlines with different focusing optics (1:1 mirror and 8:1 ellipsoidal mirror).
- Excitation using "white light" to induce characteristic X-ray fluorescence lines.
Main Results:
- Achieved sensitivities in the range of 2-20 fg in 100 square micrometer areas within 5-minute irradiation times for thin biological samples.
- Demonstrated capabilities for scanning techniques, microtomography, and chemical speciation.
- Successfully applied the microprobe to a specific biomedical study.
Conclusions:
- The developed X-ray microprobe provides high spatial resolution and sensitivity for trace elemental analysis in biological samples.
- The facility, with its distinct beamlines and optics, is well-suited for advanced elemental mapping.
- The technique shows significant potential for detailed investigations in biomedical research.
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