X-ray or gamma ray systems or devices – Accessory – Testing or calibration
Reexamination Certificate
2005-03-22
2005-03-22
Ho, Allen C. (Department: 2882)
X-ray or gamma ray systems or devices
Accessory
Testing or calibration
C378S063000, C378S206000, C250S252100, C250S370110
Reexamination Certificate
active
06869218
ABSTRACT:
This invention relates to a self diagnostic apparatus for a radiographic imaging system. The system includes a radiographic source and a camera, and the apparatus comprises: a scintillator positioned between the optical pathway of the radiographic source and the camera, and made of a material which fluoresces when struck by x-rays, including one in the group of terbium doped gadollineum oxysulfide or thallium doped cesium iodide; a resolution target located at the periphery of the scintillator and made of a material that passes at least shortwave ultraviolet light; an ultraviolet source positioned in line of sight of the scintillator and target; and, a control system for capturing a self-diagnostic reference image by activating the ultraviolet source, and activating the camera to take an image created by the visible light emitted by the scintillator material when illuminated by the UV light. A short wavelength UV light for example 254 nm excites the scintillator material to emit light from which can then be captured an image of the resolution targets.
REFERENCES:
patent: 5235191 (1993-08-01), Miller
patent: 5905772 (1999-05-01), Rutten et al.
patent: 6260999 (2001-07-01), Wofford et al.
patent: 6478462 (2002-11-01), Polkus et al.
patent: 6600159 (2003-07-01), Overdick et al.
patent: 20040022352 (2004-02-01), Suzuki
patent: 20040022363 (2004-02-01), Ghelmansarai
Cowling Lafleur Henderson LLP
Ho Allen C.
Horne D. Doak
Imaging Dynamics Company Ltd.
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