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Enhanced shielding effectiveness for scattered X-rays in diagnostic radiology using origami-inspired 3D tungsten
Yuya Yanagi1, Shunta Hirano2, Kohei Ohashi1
1Department of Radiology, Shiga University of Medical Science Hospital, Setatsukinowa, Otsu, Shiga, 5202192, Japan.
European Journal of Radiology
|February 27, 2026
Summary
Origami-inspired 3D tungsten functional paper (TFP) structures offer superior radiation shielding. These lightweight, flexible materials show promise as advanced alternatives for medical radiation protection.
Area of Science:
- Materials Science
- Radiation Physics
- Biomedical Engineering
Background:
- Tungsten functional paper (TFP) offers a unique combination of radiation shielding capabilities with lightweight and flexible properties.
- Three-dimensional (3D) origami structures can enhance the effective surface area of shielding materials, potentially improving protection against scattered radiation.
Purpose of the Study:
- To evaluate the radiation shielding effectiveness of origami-inspired 3D TFP structures.
- To assess the potential of these novel structures as alternatives to conventional radiation shielding materials.
Main Methods:
- TFP was fabricated into flat, wave, and two distinct 3D Miura-folding structures (Type-A and Type-B).
- Shielding performance was measured using scattered X-rays at 58 kV and 68 kV.
- Monte Carlo simulations were employed to validate experimental findings.
Main Results:
- The Type-B 3D TFP structure achieved a maximum shielding efficiency of 96.0% at 58 kV, significantly exceeding flat (47.6%) and wave (49.4%) configurations.
- This structure maintained high efficiency (90.4%) at 68 kV.
- Experimental results were corroborated by Monte Carlo simulations with a 2.3% error margin.
Conclusions:
- Origami-inspired 3D TFP structures exhibit superior radiation shielding performance compared to conventional designs.
- These lightweight and compact structures hold significant promise for advancing medical radiation protection applications.
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