X-ray generator for powering an X-ray tube comprising at least t

Details X-ray generator for powering an X-ray tube comprising at least t X-ray generator for powering an X-ray tube comprising at least t

1993-09-13

2000-08-15

Porta, David P.

X-ray or gamma ray systems or devices

Electronic circuit

X-ray source power supply

378138, 378109, H05G 110

Patent

active

061047813

ABSTRACT:
An X-ray generator for powering an X-ray tube, has at least two electron sources for forming focal spots of different sizes at the same area of the anode. The resolution can be adapted to relevant requirements by associating each electron source with a respective control unit which produces an electron flow between the associated electron source and the anode, which flow is dependent on a control signal at a control input of the control unit, the two control units being activatable during an X-ray exposure and each control signal being adjustable, and hence also the ratio of the mAs products supplied by the electron sources.

REFERENCES:
patent: 2160605 (1939-05-01), Suits
patent: 3783333 (1974-01-01), Atlee
patent: 3882339 (1975-05-01), Rate, Jr. et al.
patent: 4065689 (1977-12-01), Pleil
patent: 4160906 (1979-07-01), Daniels et al.
patent: 4685118 (1987-08-01), Furbee et al.
patent: 4995069 (1991-02-01), Tanaka
patent: 5200985 (1993-04-01), Miller
patent: 5303281 (1994-04-01), Koller et al.

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