X-ray tube with multiple differently sized focal spots and metho

Details X-ray tube with multiple differently sized focal spots and metho X-ray tube with multiple differently sized focal spots and metho

1994-03-03

1996-04-23

Porta, David P.

X-ray or gamma ray systems or devices

Source

Electron tube

378125, 378138, H01J 3506

Patent

active

055111050

ABSTRACT:
An x-ray tube has an anode whose target area is divided into regions formed of different materials, whereby focal spots of different size can be optionally generated in each of the regions. The focal spots belonging to one region are respectively generated at different locations but all focal spots are generated so close together that the focal position is essentially the same for all focal spots. An operating method for such an x-ray tube is also disclosed.

REFERENCES:
patent: 2942126 (1960-06-01), Silbermann
patent: 3610984 (1971-10-01), Seki
patent: 4287420 (1981-09-01), Yamamura et al.
patent: 4712226 (1987-12-01), Horbaschek
patent: 5303281 (1994-04-01), Koller et al.

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