Carbon nanotube field emission x-ray system for computed tomography

Je Hwang Ryu; Wan Sun Kim; Seung Ho Lee; Jung Su Kang; Jae Gon Kim; Soo Yeol Lee; Kyu Chang Park; Hun Kuk Park

doi:10.1117/12.2007836

6 March 2013 Carbon nanotube field emission x-ray system for computed tomography

Je Hwang Ryu, Wan Sun Kim, Seung Ho Lee, Jung Su Kang, Jae Gon Kim, Soo Yeol Lee, Kyu Chang Park, Hun Kuk Park

Proceedings Volume 8668, Medical Imaging 2013: Physics of Medical Imaging; 866860 (2013) https://doi.org/10.1117/12.2007836
Event: SPIE Medical Imaging, 2013, Lake Buena Vista (Orlando Area), Florida, United States

Abstract

Computed Tomography (CT) using Carbon Nanotube (CNT) x-ray source is a technique of generating reconstruction images of the structure of teeth sample. A proto type CNT x-ray CT was designed for medical imaging to examine whether it could be used to analysis the equipment of medical and industrial application. The CNT field emitter array was grown on silicon substrate through a resist-assisted patterning (RAP) process. The field emission properties showed a gate turn-on field of 3.8 V/μm at an anode emission current of 0.5 mA. The author demonstrated the x-ray source with four electrode structures utilizing the CNT emitter. The acquisitioned images were reconstructed by filtered back projection (FBP) method.

Citation Download Citation

Je Hwang Ryu, Wan Sun Kim, Seung Ho Lee, Jung Su Kang, Jae Gon Kim, Soo Yeol Lee, Kyu Chang Park, and Hun Kuk Park "Carbon nanotube field emission x-ray system for computed tomography", Proc. SPIE 8668, Medical Imaging 2013: Physics of Medical Imaging, 866860 (6 March 2013); https://doi.org/10.1117/12.2007836

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