Scintillation properties of some Ce/sup 3+/ and Pr/sup 3+/ doped inorganic crystals

Abstract

The scintillation properties of Ce/sup 3+/ and Pr/sup 3+/ doped complex fluoride crystals of composition CsGd/sub 2/F/sub 7/:Ce/sup 3+/, Pr/sup 3+/ and K/sub 2/YF/sub 5/:Ce/sup 3+/, Pr/sup 3+/ and of Pr/sup 3+/ doped Y/sub 3/Al/sub 5/O/sub 12/:Pr/sup 3+/ single crystals are studied by means of X-ray and gamma ray excitation. The Ce/sup 3+/ and Pr/sup 3+/ doped fluoride crystals show 5d-4f luminescences at wavelengths near 340 nm and 240 nm, respectively. 5d-4f luminescence of Pr/sup 3+/ doped Y/sub 3/Al/sub 5/O/sub 12/ is observed between 300 and 400 nm. The absolute light yield in photons/MeV is presented together with results from scintillation decay time experiments.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>