A method for recording and reproducing a radiation image comprising the steps of (i) causing a visible or infrared radiation-stimulable phosphor to absorb a high energy radiation passing through an object, (ii) stimulating said phosphor with visible or infrared radiations to release the energy stored as fluorescent light, and (iii) detecting said fluorescent light with light detecting means, characterized in that said phosphor is selected from the group consisting of green-emitting trivalent erbium activated barium ytterbium halides, trivalent erbium activated barium fluorohalides and solid solutions thereof.