COMPUTED RADIOGRAPHY SYSTEM

摘要

A computed radiography system according to an embodiment of the present invention comprises: a stimulation light source; a photo-stimulated image plate allowing a stimulation light from the stimulation light source to vertically pass therethrough so that the stimulation light can be formed into a photo-stimulated luminescence light (PLL) of which the frequency is different from the frequency of the stimulation light source; an optical receiver including multiple bundles of optical fibers which have one-dimensional input ends near the photo-stimulated image plate and have two-dimensional output ends far from the photo-stimulated image plate; an optical filter coupled to the output ends of the optical receiver, and passing the photo-stimulated luminescence light therethrough while blocking the stimulation light; a photo-multiplier tube receiving and multiplying the photo-stimulated luminescence light through the optical receiver and the optical filter; a mechanical mechanism providing a relative motion between the photo-stimulated image plate and the stimulation light source, wherein the inlet ends of the optical fibers and the outlet ends of the optical fibers are positioned according to a predetermined rule such as a zigzag pattern in which the n^th optical fiber and the (n+1)^th optical fiber are arranged to be adjacent to each other and in which the two-dimensional output ends of the optical fibers in the n^th and (n+1)^th sub-grouped bundles are arranged in the opposite directions to each other.