X-ray or gamma ray systems or devices – Specific application – Computerized tomography
Reexamination Certificate
2005-06-07
2005-06-07
Bruce, David V. (Department: 2882)
X-ray or gamma ray systems or devices
Specific application
Computerized tomography
C378S197000, C378S205000
Reexamination Certificate
active
06904119
ABSTRACT:
The radiographic apparatus according to this invention has a scan frame with an X-ray tube frame and a flat panel type detector (FPD) frame arranged therein. The X-ray tube frame surrounds an X-ray tube, and the FPD frame surrounds an FPD. The X-ray tube frame and FPD frame are rotatable together about a sectional axis. Thus, the X-ray tube and FPD rotate on the respective frames together directly about the sectional axis (for a main scan). Further, the X-ray tube and FPD are rotatable together about a scan center axis (for an auxiliary scan). The main scan and auxiliary scan are combined to achieve a high-speed scan and improves resolution in the direction of the sectional axis, thereby obtaining a three-dimensional sectional image with isotropic spatial resolution.
REFERENCES:
patent: 2002/0006185 (2002-01-01), Lienard et al.
patent: 2001-045374 (2001-02-01), None
Bruce David V.
Shimadzu Corporation
Thomas Courtney
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