| abstract |
The present invention relates to a material containing a compound of formula Pr (LnCeX, where Ln is selected from elements or mixtures of at least two elements from the group La, Nd, Pm, Sm, Eu, Gd, Y; X is selected from halides or mixtures of at least two halides from the group Cl, Br, I; x more than 0.0005 and less than 1; y is equal to 0 to less than 1 and (x + y) less than 1; and to its use as a scintillation detector, for example, PET scanner with the ability to register time of flight. |