Stationary scanning x-ray source based on carbon nanotube field emitters
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- 29 April 2005
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 86 (18) , 184104
- https://doi.org/10.1063/1.1923750
Abstract
We report a field emission x-ray source that can generate a scanning x-ray beam to image an object from multiple projection angles without mechanical motion. The key component of the device is a gated carbon nanotube field emission cathode with an array of electron emitting pixels that are individually addressable via a metal–oxide–semiconductor field effect transistor-based electronic circuit. The characteristics of this x-ray source are measured and its imaging capability is demonstrated. The device can potentially lead to a fast data acquisition rate for laminography and tomosynthesis with a simplified experimental setup.Keywords
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