Studies of LSO:Tb radio-luminescence properties using white beam hard X-ray synchrotron irradiation

A radio-luminescence set-up was installed at the synchrotron light source ANKA to characterise scintillators under the high X-ray photon flux density of white beam synchrotron radiation. The system allows for investigating the radio-luminescence spectrum of the material under study as well as analysing in situ changes of its scintillation behaviour (e.g. under heat load and/or intensive ionising radiation). In this work we applied the radio-luminescence set-up for investigating the radiation damage effects on the luminescence properties of a new kind of thin single crystal scintillator for high resolution X-ray imaging based on a layer of modified Lu₂SiO₅ grown by liquid phase epitaxy on a dedicated substrate within the framework of an EC project (SCIN^TAX).1 The project SCINTAX is funded by the European Community (STRP 033 427), see http://www.scintax.eu.