Rotating anode x-ray tube with multiple simultaneously emitting

Details Rotating anode x-ray tube with multiple simultaneously emitting Rotating anode x-ray tube with multiple simultaneously emitting

1998-11-25

2000-09-26

Porta, David P.

X-ray or gamma ray systems or devices

Source

Electron tube

378121, 378134, 378144, H01J 3526

Patent

active

061251674

ABSTRACT:
An x-ray tube (10) includes a body (16) defining a vacuum envelope. A plurality of anode elements (18) each defining a target face are rotatably disposed within the vacuum envelope. Mounted within the vacuum envelope, a plurality of cathode assemblies (22) are each capable of generating an electron stream (36) toward an associated target face. A filament current supply (32) applies a current to each of the cathode assemblies, and is selectively controlled by a cathode controller (34) which powers sets of the cathodes based on thermal loading conditions and a desired imaging profile. A collimator (C) is adjacent to the body and defines a series of alternating openings (42) and septa (44) for forming a corresponding series of parallel, fan-shaped x-ray beams or slices (46).

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