RADIATION DETECTOR AND COMPUTER TOMOGRAPHY APPARATUS THEREOF

摘要

Disclosed is a detector including a plurality of pixels detecting radiation. Each of the pixels includes: an adsorption layer converting inputted radiation photos into electric signals: a plurality of comparators comparing the electric signals with a plurality of reference values respectively and classifying the photons into a plurality of energy bands; and a plurality of counters calculating and storing the number of the photons classified into each of the energy bands and having sizes corresponding to energy values of the classified photons. The radiation detector according to an embodiment of the present invention can increase the measurable amount of the radiation without increasing the size of the pixel or a subpixel.