The present invention describes a dosimetry system (100) for use in an irradiation system (200) for radiology or radiotherapy. The dosimetry system (100) comprises an at least two dimensional, radioluminescent, irradiation detection surface (110) comprising radiosensitive material, the radiosensitive material having radioluminescent properties. The system (100) also comprises a detection system (120) configured for detecting radioluminescent radiation from the at least two dimensional detection surface (110) upon irradiation with a radiology or radiotherapy irradiating beam. The detection system (120) comprises a detector (130) sensitive for radioluminescence and a filter (140) for at least partially blocking radiation from said radiology or radiotherapy irradiating beam and ambient light.
