Characterization and Scintillation properties of Sol-Gel derived Lu2SiO5:Ln3+ (Ln = Ce, Eu, Tb) powders

Christelle Mansuy (1, 2) , Christophe Dujardin (3) , Rachid Mahiou (1) , Jean-Marie Nedelec (1)

1 LMI - Laboratoire des Matériaux Inorganiques
2 UPMC - Université Pierre et Marie Curie - Paris 6
3 LPCML - Laboratoire de Physico-Chimie des Matériaux Luminescents

In this paper, we report the synthesis, the characterization and the scintillation properties of sol-gel derived Lu2SiO5 (LSO) powders. Ce3+, Eu3+ and Tb3+ doped LSO powders have been synthesized by an original sol-gel process. The purity of the materials has been checked by X-Ray diffraction, confirming the elaboration of monophasic powders even for doped samples. Finally, the scintillation properties of the rare earth doped materials have been studied, the substitution of Ln3+ (Ln: Ce, Eu or Tb) for Lu3+ is confirmed, the scintillation yields have been calculated and the afterglow have also been measured, confirming the potentiality of the sol-gel derived LSO.

Mots clés: Scintillator; LSO; sol-gel; medical imaging; X-ray conversion

Domaines: Matériaux

Christelle Mansuy, Christophe Dujardin, Rachid Mahiou, Jean-Marie Nedelec. Characterization and Scintillation properties of Sol-Gel derived Lu2SiO5:Ln3+ (Ln = Ce, Eu, Tb) powders. Optical Materials, 2009, 31, pp.1334-1336. ⟨10.1016/j.optmat.2008.10.008⟩. ⟨hal-00395398⟩