Patent ID: 8693638
Filing Date: 2014-04-08
Classification: A61B,H01J

Abstract:
1. An X-ray tube system comprising: at least one filament adapted to produce two electron beams parallel to a first direction when electrified; two voltage gates each voltage gate of the two adapted to generate an electrostatic field to modulate one of the two electron beams; two anodes spaced from each other along the first direction, wherein each of the at least two anodes comprise a face that receives one of the two electron beams as modulated by one of the two voltage gates, wherein the each of the at least two anodes receives one of the two electron beams at a focal point and produces an X-ray cone beam responsive thereto, the two X-ray cone beams from the two anodes being directed in a same direction perpendicular to the first direction; one or both of a collimator or window opening that collimates the two X-ray cone beams such that the two X-ray cone beams are asymmetric, with a side of each X-ray cone beam distal from the other X-ray cone beam having a smaller beam angle than a side proximal to the other X-ray cone beam and the two X-ray cone beams are at least partially overlapping.