In a method for producing a binderless Eu-doped CsBr-type storage phosphor screen from a combination of phosphor precursors in order to prepare a CsBr:Eu storage phosphor by vacuum depositing said CsBr:Eu phosphor on a substrate, wherein during a vacuum depositing step said substrate is kept at a temperature T, such that 50 °C ≤ T ≤ 300 °C and wherein said vacuum deposition proceeds in an Ar-atmosphere with an Ar-pressure of at most 3 Pa; during or after at least one of the said steps a radiation exposure treatment is given with energy from radiation sources emitting short ultraviolet radiation in the range from 150 nm to 300 nm with an energy of at least 10 mJ/mm 2 .