X-ray sensor signal processor and x-ray computed tomography...

Details X-ray sensor signal processor and x-ray computed tomography... X-ray sensor signal processor and x-ray computed tomography...

2005-02-22

2005-02-22

Bruce, David V. (Department: 2882)

X-ray or gamma ray systems or devices

Specific application

Computerized tomography

C378S901000, C705S002000, C705S003000

Reexamination Certificate

active

06859511

ABSTRACT:
An X-ray sensor signal processor including capacitors114for removing DC components (dark currents) from output signals of semiconductor sensors21to2ndetecting pulse-like X-rays passed through an object, and integrators (each of which is constituted by a combination of an operational amplifier115,a resistor116and a capacitor117) for integrating the output signals of the X-ray sensors after removal of the DC components by the capacitors114.By this, a value proportional to the average number of photons in X-rays can be obtained even in the case where a small number of incident photons are given, and an X-ray CT system using the X-ray sensor signal processor.

REFERENCES:
patent: 6366636 (2002-04-01), Kamimura et al.
patent: 20020029264 (2002-03-01), Ogino et al.
patent: 20020091547 (2002-07-01), Ohe et al.
patent: 20030153816 (2003-08-01), Daft et al.
patent: 20040039259 (2004-02-01), Krause et al.
patent: A-2000-298106 (2000-10-01), None

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