Medical X-ray imaging apparatus

Details Medical X-ray imaging apparatus Medical X-ray imaging apparatus

1996-03-22

1997-09-02

Porta, David P.

X-ray or gamma ray systems or devices

Electronic circuit

With display or signaling

378108, 378146, A61B 614

Patent

active

056640013

ABSTRACT:
A medical X-ray imaging apparatus is provided, which comprises an X-ray source, an X-ray imaging device for detecting an image of X-rays having passed through a subject and a swivel member for-rotating the X-ray source and the X-ray imaging device around the subject. The X-ray imaging device comprises a CCD sensor for performing the TDI operation and a dosage sensor for detecting X-rays having passed. Dosage signal Y and transfer speed signal X corresponding to the frequency of a false vertical transfer clock are supplied to a divider, and control signal Z is outputted. When control signal Z is supplied to an X-ray control circuit via a delay circuit, the X-ray irradiation dosage of the X-ray source can be feedback-controlled properly.

REFERENCES:
patent: 4433430 (1984-02-01), Fredzell
patent: 4803714 (1989-02-01), Vlasbloem
patent: 4953189 (1990-08-01), Wang
patent: 5008915 (1991-04-01), Vlasbloem
patent: 5444756 (1995-08-01), Pai et al.

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