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7 April 2023 Carbon nanotube emitter x-ray source for high-resolution micro-computed tomography
Wooseob Kim, Jeung Sun Ahn, Jehwang Ryu
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Proceedings Volume 12463, Medical Imaging 2023: Physics of Medical Imaging; 124634O (2023) https://doi.org/10.1117/12.2655858
Event: SPIE Medical Imaging, 2023, San Diego, California, United States
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Abstract
The carbon nanotubes (CNTs) were used as an X-ray source in a micro computed tomography (CT) system. Several types of substrates have been employed to enhance the resolution, with a single-pillar substrate demonstrating the potential to produce high flux, high-resolution images. The current density of 4 A/cm2 was achieved and the focal spot size of 863 μm was calculated through X-ray image. This approach was applied to reconstruct CT images of dental phantoms, and it was successful.
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Wooseob Kim, Jeung Sun Ahn, and Jehwang Ryu "Carbon nanotube emitter x-ray source for high-resolution micro-computed tomography", Proc. SPIE 12463, Medical Imaging 2023: Physics of Medical Imaging, 124634O (7 April 2023); https://doi.org/10.1117/12.2655858
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KEYWORDS
X-ray computed tomography
Carbon nanotubes
X-rays
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