Share Email Print
cover

Proceedings Paper

Carbon nanotube field emission x-ray system for computed tomography
Author(s): Je Hwang Ryu; Wan Sun Kim; Seung Ho Lee; Jung Su Kang; Jae Gon Kim; Soo Yeol Lee; Kyu Chang Park; Hun Kuk Park
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper 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.

Paper Details

Date Published: 6 March 2013
PDF: 8 pages
Proc. SPIE 8668, Medical Imaging 2013: Physics of Medical Imaging, 866860 (6 March 2013); doi: 10.1117/12.2007836
Show Author Affiliations
Je Hwang Ryu, Kyung Hee Univ. (Korea, Republic of)
Wan Sun Kim, Kyung Hee Univ. (Korea, Republic of)
Seung Ho Lee, Kyung Hee Univ. (Korea, Republic of)
Jung Su Kang, Kyung Hee Univ. (Korea, Republic of)
Jae Gon Kim, Kyung Hee Univ. (Korea, Republic of)
Soo Yeol Lee, Kyung Hee Univ. (Korea, Republic of)
Kyu Chang Park, Kyung Hee Univ. (Korea, Republic of)
Hun Kuk Park, Kyung Hee Univ. (Korea, Republic of)


Published in SPIE Proceedings Vol. 8668:
Medical Imaging 2013: Physics of Medical Imaging
Robert M. Nishikawa; Bruce R. Whiting; Christoph Hoeschen, Editor(s)

© SPIE. Terms of Use
Back to Top