Direct conversion flat panel X-ray detector with automatic cancellation of ghost images
AssigneeFTNI Inc.
InventorHenri Rougeot
Life of this patent
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Abstract
The invention provides a direct conversion flat panel X-ray detector with automatic cancellation of ghost images due to charge trapping. The detector includes a direct X-ray to charge converter, a readout thin film transistor array supported by a glass substrate and on the rear side of the glass substrate, a layer of luminophor which automatically and instantly suppresses the ghosting effect.
Claims20
A direct conversion flat panel X-ray detector comprising a direct X-ray to charge converter with a common coplanar electrode, said charge converter being mounted on a readout thin film transistor (TFT) array supported by a transparent substrate, said substrate having a front side on which the TFT array is supported and a rear side opposite to said front side, and a layer of luminophor provided on the rear side of the substrate, said layer of luminophor being adapted to emit light under impact of the transmitted X-ray flux so as to automatically suppress ghost images due to charge trapping within the converter.
Dependencies are inferred from the claim text.