Hybrid Active Matrix Flat Panel Imager

Application for improving x-ray detector performance for radiology imaging including fluroscopy and CBCT. Provided is improved image quality with out increasing the dose to the patient.

X-ray detectors currently commercially available consist of direct and indirect detectors. Direct detectors take x-ray inputs and are directly converted to electron hole pairs and digitized through the readout electronics. Common photoconductors are amorphous selenium. Indirect detectors use a phosphor screen to later convert x-rays to optical photons, absored in a photodiode and digitized. Higher energy applications and current photoconductors do not have sufficicent quantum effciency.

New hybrid detector where incident x-rays are absorbed via both direct interactions in the photoconductor and indirect interacation in scintillator. This method enables the photoconductor to sense both x-rays and optical photons. The hybrid structure results in spatial resolution and dose efficiency improvement beyond current direct and indirect detectors.

The newly proposed model as compared to current direct and indirect detector available is better spatial resolution, improved dose efficiency, higher absorption efficiency combined with high spatial resolution resulting in better detective quantum.


We seek to develop and commercialize by an exclusive or non-exclusive license agreement and/or sponsored research with a company active in the area.

Available for License

Selenium, X-ray detector, direct detector, indirect detector


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