The invention relates to a radiation converter, comprising a radiation absorber (2), for the generation of photons as a function of the intensity of the incident x-ray radiation and a photocathode (3), arranged within the radiation absorber (2), at a distance (a) in the direction of radiation. Said photocathode (3) is for the generation of electrodes as a function of the photons emitted by the radiation absorber (2), with a device for accelerating the electrons emitted by the photocathode to an electron detector (5). Said detector generates an electrical signal as a function of the arriving electrons. An electron multiplier (4) is arranged between the photocathode (3) and the electron detector (5), whereby the electrons emitted y the photocathode (3) may be multiplied by the electron multiplier (4).