Growth and characteristics of LYSO (Lu2(1−x−y)Y2xSiO5:Cey) scintillation crystals

In this experiment, properties of LYSO crystals with different yttrium concentrations were investigated by Czochralski method. The concentrations of yttrium and cerium were analyzed by ICP-AES and the distribution coefficients of yttrium and cerium in LYSO crystal were calculated. It was found that the light output and the decay time of LYSO crystals are almost the same as that of cerium-doped lutetium oxyorthosilicate crystal (LSO). The energy resolutions of LYSO crystals, however, fluctuated in a large range.