Scintillation and spectroscopy of the pure and Ce³-doped elpasolites: Cs₂LiYX₆(X   Cl, Br)

The optical and scintillation properties of pure and Ce 3+ -doped Cs 2 LiYX 6 (X = Cl, Br) are presented. X-ray-excited optical luminescence spectra, optical excitation and emission spectra, time-resolved excitation and emission spectra, scintillation pulse height spectra and scintillation decay time spectra of Ce 3+ -doped Cs 2 LiYX 6 (X = Cl, Br) crystals measured from 10 to 300 K are presented. Factors influencing the scintillation mechanism and the presence of core–valence luminescence are discussed.