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.