Energy Transfer in Some Liquid Organic Scintillator Systems Experimental results of fluorescence induced by high energy (gamma radiation) excitation in solutions of various solutes (isoeugenole, methylisoeugenole, 2-phenylindole, N-phenyl-2-naphthyl-amine, acenaphthene, 2,6-dimethylnaphthalene and 2,5-diphenyloxazole) in various solvents (benzene, toluene, xylene and xylene/n-butanol) are compared with the Bothe equation. Good agree ment was found with the Bothe equation which takes into account the fluorescence of solute and solvent. A linear dependence of the fluorescence intensity maximum J max on P/(R-K) for different solutes in a given solvent was found. A similar dependence was also found for 2,5-diphenyloxazole in xylene/n-butanol mixtures. An interpretation of the observed effects is given.