X-ray computer tomography apparatus

Details X-ray computer tomography apparatus X-ray computer tomography apparatus

2006-10-17

2006-10-17

Glick, Edward J. (Department: 2882)

X-ray or gamma ray systems or devices

Specific application

Computerized tomography

C378S160000

Reexamination Certificate

active

07123680

ABSTRACT:
An X-ray computer tomography apparatus includes an X-ray tube, an X-ray detector, a data collection apparatus that collects X-ray signals from the X-ray detector repeatedly, a shutter mechanism that is arranged between the X-ray tube and a subject in order to convert an X-ray into a pulse-like X-ray and is constituted such that a ratio of a shutter open period and a shutter close period is variable, a restructuring unit that restructures image data on the basis of the collected X-ray signals, and a control unit that controls the shutter mechanism in order to change the ratio of a shutter open period and a shutter close period during a helical scan.

REFERENCES:
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patent: 6298111 (2001-10-01), Ozaki
patent: 6901129 (2005-05-01), Tachizaki et al.
patent: 52-63091 (1977-05-01), None
patent: 56-76200 (1981-06-01), None

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