Quest and investigation of long wavelength scintillators

Scintillation characteristics such as spectra, decay times and yields of Cu- and Ag-doped ZnSxSe1−x solid solutions, Tb-doped Gd2O2S and Y2O2S ceramics, Al2O3:Ti single crystal, and some other compounds have been measured under X-ray excitation. Certain investigated materials show a high light yield in the long wavelength region and adequate kinetic properties. It is shown that the light yield can be increased for compounds synthesized at optimal conditions.