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Updated: Mar 1, 2026

3D Printing of Preclinical X-ray Computed Tomographic Data Sets
Published on: March 22, 2013
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.
Background:
Tungsten functional paper (TFP) combines radiation shielding with lightweight properties and flexibility. Three-dimensional (3D) structures using origami techniques can increase the effective surface area of shielding materials, potentially enhancing scattered radiation protection.
Purpose:
To evaluate the shielding effectiveness of origami-inspired 3D TFP structures and assess their viability as alternatives to conventional radiation shielding materials.
Methods:
TFP was configured into flat, wave, and two types of 3D Miura-folding structures. The 3D structures were designated Type-A and Type-B, and had rhombus dimensions of 5 cm and 3 cm, respectively. Measurements were performed at 58 kV and 68 kV using scattered X-rays, with the detector positioned 30 cm horizontally away from the scatterer. Monte Carlo simulations validated the experimental results.
Results:
At 58 kV, the Type-B structure with 17 cm expansion width achieved the highest shielding efficiency of 96.0%, significantly outperforming flat (47.6%) and wave (49.4%) configurations. This structure maintained 90.4% efficiency at 68 kV. Monte Carlo simulations confirmed the experimental results within 2.3% error.
Conclusion:
Origami-inspired 3D TFP structures demonstrate superior shielding performance while maintaining a lightweight and compact design, showing promise for medical radiation protection applications.
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