Transmission-type microfocus x-ray tube using carbon nanotube field emitters

A microfocus x-ray tube that can generate x rays with the focal spot size less than 5 mu m has been demonstrated using carbon nanotube (CNT) field emitters. A CNT cathode on a sharp tungsten tip, a magnetic solenoid lens, and a transmission-type x-ray target were adopted for the microfocus x-ray tube. The design characteristics and the operation performance of the microfocus x-ray tube are presented. Due to the small focal spot size, clear x-ray radiographic images of 6 mu m bars and x-ray images with the magnification factor of higher than 230 were obtained. (c) 2007 American Institute of Physics.
Publisher
AMER INST PHYSICS
Issue Date
2007-04
Language
ENG
Keywords

EMISSION; TOMOGRAPHY

Citation

APPLIED PHYSICS LETTERS, v.90, no.18, pp.1804 - 1806

ISSN
0003-6951
DOI
10.1063/1.2735549
URI
http://hdl.handle.net/10203/3248
Appears in Collection
NE-Journal Papers(저널논문)
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