Performance Parameters of some New Efficient and highly soluble Solutes for Liquid Scintillators

In the use of fluorescing organic compounds as solutes for liquid scintillators several factors must be considered. The photon yield of the scintillators must be high, the spectral matching to the photomultiplier sufficient and the fluorescence decay time should be short. Besides these physical properties also some practical requirements must be fullfilled. The solubility in the solvent used should be high and the scintillator should be as little affected by quenching agents as possible. For convenience in handling and sufficient shelf life of the solutions, the photochemical degradation of the scintillator must be negligible.