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Updated: Feb 17, 2026
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Neutron Radiography and Computed Tomography of Biological Systems at the Oak Ridge National Laboratory's High Flux Isotope Reactor
Published on: May 7, 2021
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Neutron and X-ray Tomography (NeXT) system for simultaneous, dual modality tomography
J M LaManna1, D S Hussey1, E Baltic1
1Physical Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, Maryland 20874, USA.
The Review of Scientific Instruments
|December 3, 2017
Summary
This study introduces a simultaneous dual-mode tomography system using neutrons and X-rays for enhanced sample composition analysis. The system excels in characterizing porous materials like concrete and geological media.
Area of Science:
- Materials Science
- Geophysics
- Engineering
Background:
- Dual-mode tomography combines complementary probes for enhanced sample analysis.
- Porous media like concrete and geological formations require advanced characterization techniques.
Purpose of the Study:
- To develop and evaluate a simultaneous neutron and X-ray tomography system.
- To assess the system's suitability for analyzing porous media.
Main Methods:
- Development of a simultaneous neutron and 90 keV X-ray tomography system.
- Characterization of individual neutron and X-ray modality performance.
- Application to porous media, including concrete core analysis.
Main Results:
- The dual-mode system provides complementary compositional information.
- Demonstrated characteristic performance for both neutron and X-ray imaging.
- Successfully improved phase identification in a concrete core sample.
Conclusions:
- Simultaneous dual-mode tomography offers superior sample composition estimation.
- The developed system is effective for studying diverse porous media.
- Enhanced phase identification is a key benefit for materials analysis.
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