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Lu2S3:Ce3+, A new red luminescing scintillator

1998; Elsevier BV; Volume: 134; Issue: 2 Linguagem: Inglês

10.1016/s0168-583x(98)00667-3

1872-9584

J.C. van't Spijker, P. Dorenbos, Cédric Allier, C.W.E. van Eijk, A. R. H. F. Ettema, G. Hüber,

Advanced Semiconductor Detectors and Materials

Scintillation properties of Lu2S3:Ce3+ crystals are presented. The studied crystals of ∼1 × 1 × 1 mm3 have the corundum structure (density 6.25 g/cm3, effective atomic number 66.8). The linear attenuation length of a 511 keV photon is 1.35 cm. The light yield is 25 000–30 000 photons per MeV and the decay time is rather short, i.e. 32 ns. The emission spectrum is between 550 and 700 nm, peaking at 592 nm. Consequently the scintillation light can be efficiently detected by means of silicon diodes.