X-ray or gamma ray systems or devices – Source – Electron tube
Reexamination Certificate
2008-01-21
2010-10-05
Ho, Allen C. (Department: 2882)
X-ray or gamma ray systems or devices
Source
Electron tube
C378S122000, C378S137000, C378S138000
Reexamination Certificate
active
07809114
ABSTRACT:
A multiple spot x-ray generator is provided that includes a plurality of electron generators. Each electron generator includes an emitter element to emit an electron beam, a meshed grid adjacent each emitter element to enhance an electric field at a surface of the emitter element, and a focusing element positioned to receive the electron beam from each of the emitter elements and focus the electron beam to form a focal spot on a shielded target anode, the shielded target anode structure producing an array of x-ray focal spots when impinged by electron beams generated by the plurality of electron generators. The plurality of electron generators are arranged to form an electron generator matrix that includes activation connections electrically connected to the plurality of electron generators, wherein each electron generator is connected to a pair of the activation connections to receive an electric potential therefrom.
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Caiafa Antonio
Cao Yang
Inzinna Louis Paul
Neculaes Vasile Bogdan
Price John Scott
General Electric Company
Ho Allen C.
Klindtworth Jason K.
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