| 摘要 |
<p>A high resolution x-ray imaging device based on a storage phosphor layer. The storage phosphor layer (16) is sandwiched between two arrays of electrodes (18 and 20). The arrays are orthogonal arrays of linear electrodes, one of the arrays being transparent to the phosphorescence emitted by the storage phosphor. To read a pixel of a latent image stored in the storage phosphor layer, a voltage difference is established between two crossed electrodes that exceeds the threshold voltage of the storage phosphor material. The emitted light is detected by a device such as a CCD array. Preferably, the electrodes are addressed in interleaved subsets, each with as many electrode intersections as there are pixels in the CCD array, to create subimages which are interleaved to provide a final image having a resolution finer than the resolution of the CCD array.</p> |
