Flat panel detector is an important equipment of mobile DR, and its quality ultimately affects the results. The quantum detection efficiency determines the resolution of X-ray detector plate for different tissue density differences, while the spatial resolution determines the resolution of microstructure. Quantum detection efficiency and spatial resolution can be used to evaluate the imaging ability of flat panel detectors.
In the indirect conversion flat panel detector, there are two main factors that affect the efficiency of quantum detection: the coating of scintillator and the transistor that converts visible light into electrical signal.
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