The aim of this thesis is finding the best detection plate for the needs of today's radiology. Detector plates can be divided into computerized radiography systems (phosphor plates) and digital radiography systems (CCD, CMOS, silicon photodiodes and flat panel detector). Phosphor plates use the principle of radiation-induced photostimulable luminescence, where the signals are stored in the Eu3+-F-center complex inside the plate, and can be read with laser scanner (digitizer). Digital radiology systems can be divided into indirect and direct; indirect are those that require the use of scintillators for conversion of x-rays into photons of visible light and, while direct detectors use photoconductors to directly convert x-rays into charges. The best scintillator is cesium iodide, while the best photoconductor is amorphous selenium. CCD, CMOS and silicon photodiode are exclusively indirect digital detector systems, while flat panel detectors can be found in both direct and indirect formats. CCD "slot scan" detector system with "full frame" mode of charge reading, CMOS detector with active pixels, and silicon photodiode with back illuminated PDA have proven to be the best variants of detectors of their kind. The best flat panel detector is of the indirect type with a cesium iodide scintillator, and it is also the best detector in radiology, which has been proven with the help of research with PBU-S-3, CDRAD 2.0 and TRG phantom. Research projects were mostly focused on image quality and the dependence of image quality on the radiation dose as a significant factor in the protection against radiation.