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AssigneeMinnesota Mining and Manufacturing Company
InventorsDonald M. Korn, Owen L. Nelson
Estimating the term…
An imaging system and method in which a multi-layered device having a photoconductive insulative layer is utilized to provide an electrostatic charge image at a layer of the device in response to imaging radiation directed to the device. A scanner for scanning the device with readout radiation is used with readout electronics for converting the electrostatic charge image to electrical signals. A D.C. voltage source is used during the imaging step to impress an electric field across the device and is also used to provide an electric field across the device and support charge flow initiated by the readout radiation during the readout step. Devices using a fluid layer that absorbs x-rays to produce electrons and ions are used in the system with x-ray imaging radiation with a conductive layer that is associated with the fluid layer re-positioned closer to the photoconductive insulative layer after the electrostatic charge image has been formed.
A system for establishing an electrostatic charge image and then providing a readout of the image including a multi-layered photoconductive device including a first conductive layer, an insulative layer, a photoconductive insulative layer and a second conductive layer in that order wherein at least the latter three layers are successively contiguous;
A method for establishing an electrostatic charge image and then providing a readout of the image including the steps of exposing a multi-layered photoconductive device having a first conductive layer, an insulative layer, a photoconductive insulative layer and a second conductive layer in that order, wherein at least the three latter layers are successively contiguous, to a radiation image while a D.C. voltage is applied to the device to establish a high electric field between the first and second conductive layers to produce an electrostatic image at a layer of the device and providing for the scanning of the device with readout radiation with readout electronics provided and operatively connected in series with the D.C. voltage and such series combination connected between the first and second conductive layers for detecting charge flow caused by the readout radiation as it scans the device.
A system for establishing an electrostatic charge image and then providing a readout of the image including a multi-layered photoconductive device;
A method for establishing an electrostatic charge image and then providing a readout of the image including the steps of exposing a multi-layered photoconductive device having a first conductive layer, an x-ray absorbing fluid layer, a photoconductive insulative layer and a second conductive layer in that order, to a radiation image while a D.C. voltage is applied to the device to establish a high electric field between the first and second conductive layers to produce an electrostatic image at a layer of the device, after the step of exposing said device to radiation image, positioning said first conductive layer closer to, but not in, electrical contact with said photoconductive layer, and providing for the scanning of said device with readout radiation with readout electronics provided and operatively connected in series with the D.C. voltage and such series combination connected between the first and second conductive layers for detecting charge flow caused by the readout radiation as it scans said device.
Dependencies are inferred from the claim text.