Minnesota Mining and Manufacturing Company

Earl L Cook

Ranjith Divigalpitiya

Owen L Nelson

Keith K Mclaughlin

William B Robbins

Jathan D Edwards

Padmanabham A Arimilli

Bimsara W Disanayaka

Detector plate for use in imaging systems

A system and method for conditioning a photoconductive radiation detector achieve charge redistribution within a photoconductive layer without the need for charge removal or charge injection techniques. A first conditioning voltage is applied across the detector to establish a first electric field. The first electric field is reversed relative to fields applied to the detector during image exposure and image read-out operations. While the first conditioning voltage is maintained, the photoconductive layer is exposed for a period of time to first conditioning radiation having one or more wavelengths selected to penetrate at least a portion of the photoconductive layer. A second conditioning voltage, less than the first conditioning voltage, then can be optionally applied across the detector to establish a forward bias electric field. While the second conditioning voltage is maintained, the photoconductive layer is exposed for a period of time to second, broad spectrum conditioning radiation. The detector can then be placed in a dark environment for a period of time, in a shorted condition, to dark-adapt the photoconductive layer.

System and method for conditioning a radiation detector

Growing community of inventors

Woodbury, MN, United States of America

Earl L Cook