Interaction of the Phosphor Layer with X-radiation
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A PSP will last for several thousand exposures, so long as it remains undamaged and free of scratches.įig 7-1 Cross section through a typical PSP showing the layers and their functions. The PSP is similar for all systems and comprises:Ī cross section of a PSP illustrating these layers and their functions is shown in Fig 7-1. Principles of Indirect Digital Radiography Construction of the PSP As there is this additional scanning process, these systems are referred to as indirect digital systems. With these systems, once the PSP has been exposed the sensor has to be scanned by a laser before the image can be displayed. In this chapter, the term is used for images acquired using a photostimulable phosphor plate (PSP). To some this means digitising a conventional radiograph using a flatbed scanner with a transparency adaptor. There is some confusion in the use of the term “indirect digital imaging”. What Does Indirect Digital Radiography Mean? Give the advantages and disadvantages of these systems. OutcomeĪfter reading this chapter the reader should be able to:ĭescribe the basic construction of a photostimulable phosphor plateĮxplain how a typical indirect digital system works The aim of this chapter is to provide a comprehensive understanding of indirect digital x-ray imaging in dentistry.
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