Principle of portable DR detector
In terms of imaging quality, there are two performance indexes evaluating its portable X-ray: quantum detection efficiency and spatial resolution. Different types of flat plate detectors have different influence factors on the efficiency and spatial resolution of quantum detection.
Portable X-ray transistors that convert visible light into electrical signals and scintillator coatings affect quantum detection efficiency, which is related to the charge generation ability of amorphous selenium layers in direct conversion X-ray detectors.
While spatial resolution in direct converted portable X-ray depends on the size of thin film transistor matrix per unit area, and the size of thin film transistor matrix per unit plane affects the size of spatial resolution for the control of scattered light in indirect flat plate detector.
Since different portable X-ray can distinguish different tissue densities or the density of dense tissues in tissues, the use of different plate detectors in different parts is conducive to the improvement of image quality in practical clinical operations.
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