Computed tomography scanner with reduced power x-ray source

Details Computed tomography scanner with reduced power x-ray source Computed tomography scanner with reduced power x-ray source

1996-10-30

1999-02-02

Wong, Don

X-ray or gamma ray systems or devices

Specific application

Computerized tomography

378146, G01N 2300

Patent

active

058675531

ABSTRACT:
The disclosed CT scanner includes an X-ray source and an array of X-ray detectors fixed to a reduced geometry disk which is supported for rotation about an isocenter of the disk. The X-ray source is a reduced power source and a beam hardening filter of reduced size is positioned proximal to the X-ray source so the scanner uses a relatively soft X-ray beam. The scanner further includes circuitry for compensating for non-linearities and channel-to-channel variation in the X-ray detectors.

REFERENCES:
patent: 4365155 (1982-12-01), Oi et al.
patent: 4547893 (1985-10-01), Gordon
patent: 4785354 (1988-11-01), Nakamura et al.
patent: 4803711 (1989-02-01), Tsuji et al.
patent: 4911189 (1991-02-01), Boomgaarden et al.
patent: 5220589 (1993-06-01), Gard
patent: 5550886 (1996-08-01), Dobbs et al.

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