Measurement of absolut Yield of Scintillator Materials

The aim of the project is to characterize innovative scintillating materials that should combine all the capabilities required for CEA-LNHB's developments in metrology, in particular the development of laboratory calibration equipment, as well as being portable for operando and in-situ use. This should provide improvement of the new Compton-TDCR (Triple-to-Double Coincidence Ratio) method [2-3]. The scintillator needs to be characterized in terms of the number of light photons produced per deposited energy (scintillation yield) and of the time response of the different components of the scintillating material. This is important for the fundamental understanding of the photonic properties of these innovative materials, with possible benefits for other applications. It is also a way to obtain an absolute curve of scintillator efficiency that could be used for radionuclide metrology and thus driving the base for new methods.