| 摘要 |
There is disclosed a process and apparatus for receiving and reproducing radiographic information from an anisotropic storage phosphor screen including an auto-collimating photostimulable phosphor layer of a material selected from the group consisting of europium activated barium fluorobromide, europium activated potassium chloride, indium activated potassium bromide or indium activated rubidium iodide, which absorbs impinging ionizing radiation emanating from or passing through an object to be imaged, a collimated or focused interrogating beam of photons directed parallel to the columnar structure of the screen to stimulate the trapped electrons within the storage phosphor to release the energy stored therein as luminescent photons, an opto-electro-mechanical assembly to achieve a raster scan of the interrogating beam over the area of the phosphor screen, a detector for converting the luminescent photons into electrical signals, and a computer to record and/or display the intensity versus positional information as a radiographic image of the object.
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