X-ray or gamma ray systems or devices – Source – Electron tube
Reexamination Certificate
2009-12-01
2011-12-20
Thomas, Courtney (Department: 2882)
X-ray or gamma ray systems or devices
Source
Electron tube
C378S136000
Reexamination Certificate
active
08081734
ABSTRACT:
Embodiments of the invention provide a novel, low-power X-ray tube and X-ray generating system. Embodiments of the invention use a multichannel electron generator as the electron source, thereby increasing reliability and decreasing power consumption of the X-ray tube. Unlike tubes using a conventional filament that must be heated by a current power source, embodiments of the invention require only a voltage power source, use very little current, and have no cooling requirements. The microchannel electron generator comprises one or more microchannel plates (MCPs), Each MCP comprises a honeycomb assembly of a plurality of annular components, which may be stacked to increase electron intensity. The multichannel electron generator used enables directional control of electron flow. In addition, the multichannel electron generator used is more robust than conventional filaments, making the resulting X-ray tube very shock and vibration resistant.
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DeLong David P.
Elam Wm. Timothy
Hershyn William
Kelliher Warren C.
Galus Helen M.
The United States of America as represented by the Administrator
Thomas Courtney
Warmbier Andrea Z.
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