C. W. E. van Eijk, H. U. Güdel , M. D. Birowosuto, P. Dorenbos and K. W. Krämer
High Light Yield Fast Scintillator
World Intellectual Property Organization,
Int. patent number WO 2007/031583 A1, 22.03.2007                 

Abstract: The invention concerns a material comprising a compound of formula Pr_(1-x-y)Ln_yCe_xX₃ wherein
- Ln is chosen from the elements or mixtures of at least two elements, of the group: La, Nd, Pm, Sm, Eu, Gd, Y,
- X is chosen from the halides or mixtures of at least two halides, of the group: Cl, Br, I,
- x is above 0.0005 and is lower than 1 ,
- y is from 0 to less than 1 and - x+y) is less than 1 ,
and its use as scintillation detector, for example in PET scanner with time of flight apabilities.